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_mips4K                32
 134 .#define bfd_mach_mips16                16
 135 .  bfd_arch_i386,      {* Intel 386 *}
 136 .#define bfd_mach_i386_i386 0
 137 .#define bfd_mach_i386_i8086 1
 138 .#define bfd_mach_i386_i386_intel_syntax 2
 139 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 140 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 141 .  bfd_arch_i860,      {* Intel 860 *}
 142 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 143 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 144 .  bfd_arch_alliant,   {* Alliant *}
 145 .  bfd_arch_convex,    {* Convex *}
 146 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 147 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 148 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 149 .#define bfd_mach_h8300   1
 150 .#define bfd_mach_h8300h  2
 151 .#define bfd_mach_h8300s  3
 152 .  bfd_arch_powerpc,   {* PowerPC *}
 153 .#define bfd_mach_ppc           0
 154 .#define bfd_mach_ppc_403       403
 155 .#define bfd_mach_ppc_403gc     4030
 156 .#define bfd_mach_ppc_505       505
 157 .#define bfd_mach_ppc_601       601
 158 .#define bfd_mach_ppc_602       602
 159 .#define bfd_mach_ppc_603       603
 160 .#define bfd_mach_ppc_ec603e    6031
 161 .#define bfd_mach_ppc_604       604
 162 .#define bfd_mach_ppc_620       620
 163 .#define bfd_mach_ppc_630       630
 164 .#define bfd_mach_ppc_750       750
 165 .#define bfd_mach_ppc_860       860
 166 .#define bfd_mach_ppc_a35       35
 167 .#define bfd_mach_ppc_rs64ii    642
 168 .#define bfd_mach_ppc_rs64iii   643
 169 .#define bfd_mach_ppc_7400      7400
 170 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 171 .#define bfd_mach_rs6k          0
 172 .#define bfd_mach_rs6k_rs1      6001
 173 .#define bfd_mach_rs6k_rsc      6003
 174 .#define bfd_mach_rs6k_rs2      6002
 175 .  bfd_arch_hppa,      {* HP PA RISC *}
 176 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 177 .#define bfd_mach_d10v          0
 178 .#define bfd_mach_d10v_ts2      2
 179 .#define bfd_mach_d10v_ts3      3
 180 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 181 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 182 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 183 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 184 .#define bfd_mach_z8001         1
 185 .#define bfd_mach_z8002         2
 186 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 187 .  bfd_arch_sh,        {* Hitachi SH *}
 188 .#define bfd_mach_sh            0
 189 .#define bfd_mach_sh2        0x20
 190 .#define bfd_mach_sh_dsp     0x2d
 191 .#define bfd_mach_sh3        0x30
 192 .#define bfd_mach_sh3_dsp    0x3d
 193 .#define bfd_mach_sh3e       0x3e
 194 .#define bfd_mach_sh4        0x40
 195 .  bfd_arch_alpha,     {* Dec Alpha *}
 196 .#define bfd_mach_alpha_ev4  0x10
 197 .#define bfd_mach_alpha_ev5  0x20
 198 .#define bfd_mach_alpha_ev6  0x30
 199 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 200 .#define bfd_mach_arm_2         1
 201 .#define bfd_mach_arm_2a        2
 202 .#define bfd_mach_arm_3         3
 203 .#define bfd_mach_arm_3M        4
 204 .#define bfd_mach_arm_4         5
 205 .#define bfd_mach_arm_4T        6
 206 .#define bfd_mach_arm_5         7
 207 .#define bfd_mach_arm_5T        8
 208 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 209 .  bfd_arch_w65,       {* WDC 65816 *}
 210 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 211 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 212 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 213 .  bfd_arch_v850,      {* NEC V850 *}
 214 .#define bfd_mach_v850          0
 215 .#define bfd_mach_v850e         'E'
 216 .#define bfd_mach_v850ea        'A'
 217 .  bfd_arch_arc,       {* Argonaut RISC Core *}
 218 .#define bfd_mach_arc_base 0
 219 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 220 .#define bfd_mach_m32r          0 {* backwards compatibility *}
 221 .#define bfd_mach_m32rx         'x'
 222 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 223 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 224 .#define bfd_mach_mn10300               300
 225 .#define bfd_mach_am33          330
 226 .  bfd_arch_fr30,
 227 .#define bfd_mach_fr30          0x46523330
 228 .  bfd_arch_mcore,
 229 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 230 .  bfd_arch_pj,
 231 .  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
 232 .#define bfd_mach_avr1          1
 233 .#define bfd_mach_avr2          2
 234 .#define bfd_mach_avr3          3
 235 .#define bfd_mach_avr4          4
 236 .#define bfd_mach_avr5          5
 237 .  bfd_arch_cris,      {* Axis CRIS *}
 238 .  bfd_arch_last
 239 .  };
 240
 241
 242 */
 243
 244 /*
 245
 246 SUBSECTION
 247         bfd_arch_info
 248
 249 DESCRIPTION
 250         This structure contains information on architectures for use
 251         within BFD.
 252
 253 .
 254 .typedef struct bfd_arch_info
 255 .{
 256 .  int bits_per_word;
 257 .  int bits_per_address;
 258 .  int bits_per_byte;
 259 .  enum bfd_architecture arch;
 260 .  unsigned long mach;
 261 .  const char *arch_name;
 262 .  const char *printable_name;
 263 .  unsigned int section_align_power;
 264 .  {* True if this is the default machine for the architecture.  *}
 265 .  boolean the_default;
 266 .  const struct bfd_arch_info * (*compatible)
 267 .       PARAMS ((const struct bfd_arch_info *a,
 268 .                const struct bfd_arch_info *b));
 269 .
 270 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 271 .
 272 .  const struct bfd_arch_info *next;
 273 .} bfd_arch_info_type;
 274 */
 275
 276 extern const bfd_arch_info_type bfd_a29k_arch;
 277 extern const bfd_arch_info_type bfd_alpha_arch;
 278 extern const bfd_arch_info_type bfd_arc_arch;
 279 extern const bfd_arch_info_type bfd_arm_arch;
 280 extern const bfd_arch_info_type bfd_cris_arch;
 281 extern const bfd_arch_info_type bfd_d10v_arch;
 282 extern const bfd_arch_info_type bfd_d30v_arch;
 283 extern const bfd_arch_info_type bfd_h8300_arch;
 284 extern const bfd_arch_info_type bfd_h8500_arch;
 285 extern const bfd_arch_info_type bfd_hppa_arch;
 286 extern const bfd_arch_info_type bfd_i370_arch;
 287 extern const bfd_arch_info_type bfd_i386_arch;
 288 extern const bfd_arch_info_type bfd_i860_arch;
 289 extern const bfd_arch_info_type bfd_i960_arch;
 290 extern const bfd_arch_info_type bfd_m32r_arch;
 291 extern const bfd_arch_info_type bfd_m68hc11_arch;
 292 extern const bfd_arch_info_type bfd_m68hc12_arch;
 293 extern const bfd_arch_info_type bfd_m68k_arch;
 294 extern const bfd_arch_info_type bfd_m88k_arch;
 295 extern const bfd_arch_info_type bfd_mips_arch;
 296 extern const bfd_arch_info_type bfd_mn10200_arch;
 297 extern const bfd_arch_info_type bfd_mn10300_arch;
 298 extern const bfd_arch_info_type bfd_powerpc_arch;
 299 extern const bfd_arch_info_type bfd_rs6000_arch;
 300 extern const bfd_arch_info_type bfd_pj_arch;
 301 extern const bfd_arch_info_type bfd_sh_arch;
 302 extern const bfd_arch_info_type bfd_sparc_arch;
 303 extern const bfd_arch_info_type bfd_tic30_arch;
 304 extern const bfd_arch_info_type bfd_tic54x_arch;
 305 extern const bfd_arch_info_type bfd_tic80_arch;
 306 extern const bfd_arch_info_type bfd_vax_arch;
 307 extern const bfd_arch_info_type bfd_we32k_arch;
 308 extern const bfd_arch_info_type bfd_z8k_arch;
 309 extern const bfd_arch_info_type bfd_ns32k_arch;
 310 extern const bfd_arch_info_type bfd_w65_arch;
 311 extern const bfd_arch_info_type bfd_v850_arch;
 312 extern const bfd_arch_info_type bfd_fr30_arch;
 313 extern const bfd_arch_info_type bfd_mcore_arch;
 314 extern const bfd_arch_info_type bfd_avr_arch;
 315 extern const bfd_arch_info_type bfd_ia64_arch;
 316
 317 static const bfd_arch_info_type * const bfd_archures_list[] =
 318 {
 319 #ifdef SELECT_ARCHITECTURES
 320   SELECT_ARCHITECTURES,
 321 #else
 322   &bfd_a29k_arch,
 323   &bfd_alpha_arch,
 324   &bfd_arc_arch,
 325   &bfd_arm_arch,
 326   &bfd_cris_arch,
 327   &bfd_d10v_arch,
 328   &bfd_d30v_arch,
 329   &bfd_h8300_arch,
 330   &bfd_h8500_arch,
 331   &bfd_hppa_arch,
 332   &bfd_i370_arch,
 333   &bfd_i386_arch,
 334   &bfd_i860_arch,
 335   &bfd_i960_arch,
 336   &bfd_m32r_arch,
 337   &bfd_m68hc11_arch,
 338   &bfd_m68hc12_arch,
 339   &bfd_m68k_arch,
 340   &bfd_m88k_arch,
 341   &bfd_mips_arch,
 342   &bfd_mn10200_arch,
 343   &bfd_mn10300_arch,
 344   &bfd_powerpc_arch,
 345   &bfd_rs6000_arch,
 346   &bfd_sh_arch,
 347   &bfd_sparc_arch,
 348   &bfd_tic30_arch,
 349   &bfd_tic54x_arch,
 350   &bfd_tic80_arch,
 351   &bfd_vax_arch,
 352   &bfd_we32k_arch,
 353   &bfd_z8k_arch,
 354   &bfd_ns32k_arch,
 355   &bfd_w65_arch,
 356   &bfd_v850_arch,
 357   &bfd_fr30_arch,
 358   &bfd_mcore_arch,
 359   &bfd_avr_arch,
 360   &bfd_ia64_arch,
 361 #endif
 362   0
 363 };
 364
 365 /*
 366 FUNCTION
 367         bfd_printable_name
 368
 369 SYNOPSIS
 370         const char *bfd_printable_name(bfd *abfd);
 371
 372 DESCRIPTION
 373         Return a printable string representing the architecture and machine
 374         from the pointer to the architecture info structure.
 375
 376 */
 377
 378 const char *
 379 bfd_printable_name (abfd)
 380      bfd *abfd;
 381 {
 382   return abfd->arch_info->printable_name;
 383 }
 384
 385
 386
 387 /*
 388 FUNCTION
 389         bfd_scan_arch
 390
 391 SYNOPSIS
 392         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 393
 394 DESCRIPTION
 395         Figure out if BFD supports any cpu which could be described with
 396         the name @var{string}.  Return a pointer to an <<arch_info>>
 397         structure if a machine is found, otherwise NULL.
 398
 399 */
 400
 401 const bfd_arch_info_type *
 402 bfd_scan_arch (string)
 403      const char *string;
 404 {
 405   const bfd_arch_info_type * const *app, *ap;
 406
 407   /* Look through all the installed architectures */
 408   for (app = bfd_archures_list; *app != NULL; app++)
 409     {
 410       for (ap = *app; ap != NULL; ap = ap->next)
 411         {
 412           if (ap->scan (ap, string))
 413             return ap;
 414         }
 415     }
 416
 417   return NULL;
 418 }
 419
 420
 421
 422 /*
 423 FUNCTION
 424         bfd_arch_list
 425
 426 SYNOPSIS
 427         const char **bfd_arch_list(void);
 428
 429 DESCRIPTION
 430         Return a freshly malloced NULL-terminated vector of the names
 431         of all the valid BFD architectures.  Do not modify the names.
 432
 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
 477 /*
 478 FUNCTION
 479         bfd_arch_get_compatible
 480
 481 SYNOPSIS
 482         const bfd_arch_info_type *bfd_arch_get_compatible(
 483                 const bfd *abfd,
 484                 const bfd *bbfd);
 485
 486 DESCRIPTION
 487         Determine whether two BFDs'
 488         architectures and machine types are compatible.  Calculates
 489         the lowest common denominator between the two architectures
 490         and machine types implied by the BFDs and returns a pointer to
 491         an <<arch_info>> structure describing the compatible machine.
 492 */
 493
 494 const bfd_arch_info_type *
 495 bfd_arch_get_compatible (abfd, bbfd)
 496      const bfd *abfd;
 497      const bfd *bbfd;
 498 {
 499   /* If either architecture is unknown, then all we can do is assume
 500      the user knows what he's doing.  */
 501   if (abfd->arch_info->arch == bfd_arch_unknown)
 502         return bbfd->arch_info;
 503   if (bbfd->arch_info->arch == bfd_arch_unknown)
 504         return abfd->arch_info;
 505
 506   /* Otherwise architecture-specific code has to decide.  */
 507   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 508 }
 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
 526 const bfd_arch_info_type bfd_default_arch_struct =
 527 {
 528     32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
 529     bfd_default_compatible,
 530     bfd_default_scan,
 531     0,
 532 };
 533
 534 /*
 535 FUNCTION
 536         bfd_set_arch_info
 537
 538 SYNOPSIS
 539         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 540
 541 DESCRIPTION
 542         Set the architecture info of @var{abfd} to @var{arg}.
 543 */
 544
 545 void
 546 bfd_set_arch_info (abfd, arg)
 547      bfd *abfd;
 548      const bfd_arch_info_type *arg;
 549 {
 550   abfd->arch_info = arg;
 551 }
 552
 553 /*
 554 INTERNAL_FUNCTION
 555         bfd_default_set_arch_mach
 556
 557 SYNOPSIS
 558         boolean bfd_default_set_arch_mach(bfd *abfd,
 559                 enum bfd_architecture arch,
 560                 unsigned long mach);
 561
 562 DESCRIPTION
 563         Set the architecture and machine type in BFD @var{abfd}
 564         to @var{arch} and @var{mach}.  Find the correct
 565         pointer to a structure and insert it into the <<arch_info>>
 566         pointer.
 567 */
 568
 569 boolean
 570 bfd_default_set_arch_mach (abfd, arch, mach)
 571      bfd *abfd;
 572      enum bfd_architecture arch;
 573      unsigned long mach;
 574 {
 575   const bfd_arch_info_type * const *app, *ap;
 576
 577   for (app = bfd_archures_list; *app != NULL; app++)
 578     {
 579       for (ap = *app; ap != NULL; ap = ap->next)
 580         {
 581           if (ap->arch == arch
 582               && (ap->mach == mach
 583                   || (mach == 0 && ap->the_default)))
 584             {
 585               abfd->arch_info = ap;
 586               return true;
 587             }
 588         }
 589     }
 590
 591   abfd->arch_info = &bfd_default_arch_struct;
 592   bfd_set_error (bfd_error_bad_value);
 593   return false;
 594 }
 595
 596
 597 /*
 598 FUNCTION
 599         bfd_get_arch
 600
 601 SYNOPSIS
 602         enum bfd_architecture bfd_get_arch(bfd *abfd);
 603
 604 DESCRIPTION
 605         Return the enumerated type which describes the BFD @var{abfd}'s
 606         architecture.
 607
 608 */
 609
 610 enum bfd_architecture
 611 bfd_get_arch (abfd)
 612      bfd *abfd;
 613 {
 614     return abfd->arch_info->arch;
 615 }
 616
 617 /*
 618 FUNCTION
 619         bfd_get_mach
 620
 621 SYNOPSIS
 622         unsigned long bfd_get_mach(bfd *abfd);
 623
 624 DESCRIPTION
 625         Return the long type which describes the BFD @var{abfd}'s
 626         machine.
 627 */
 628
 629 unsigned long
 630 bfd_get_mach (abfd)
 631      bfd *abfd;
 632 {
 633     return abfd->arch_info->mach;
 634 }
 635
 636 /*
 637 FUNCTION
 638         bfd_arch_bits_per_byte
 639
 640 SYNOPSIS
 641         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 642
 643 DESCRIPTION
 644         Return the number of bits in one of the BFD @var{abfd}'s
 645         architecture's bytes.
 646
 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 /*
 677 INTERNAL_FUNCTION
 678         bfd_default_compatible
 679
 680 SYNOPSIS
 681         const bfd_arch_info_type *bfd_default_compatible
 682         (const bfd_arch_info_type *a,
 683         const bfd_arch_info_type *b);
 684
 685 DESCRIPTION
 686         The default function for testing for compatibility.
 687 */
 688
 689 const bfd_arch_info_type *
 690 bfd_default_compatible (a,b)
 691      const bfd_arch_info_type *a;
 692      const bfd_arch_info_type *b;
 693 {
 694   if (a->arch != b->arch)
 695     return NULL;
 696
 697   if (a->mach > b->mach)
 698     return a;
 699
 700   if (b->mach > a->mach)
 701     return b;
 702
 703   return a;
 704 }
 705
 706
 707 /*
 708 INTERNAL_FUNCTION
 709         bfd_default_scan
 710
 711 SYNOPSIS
 712         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 713
 714 DESCRIPTION
 715         The default function for working out whether this is an
 716         architecture hit and a machine hit.
 717 */
 718
 719 boolean
 720 bfd_default_scan (info, string)
 721      const struct bfd_arch_info *info;
 722      const char *string;
 723 {
 724   const char *ptr_src;
 725   const char *ptr_tst;
 726   unsigned long number;
 727   enum bfd_architecture arch;
 728   const char *printable_name_colon;
 729
 730   /* Exact match of the architecture name (ARCH_NAME) and also the
 731      default architecture? */
 732   if (strcasecmp (string, info->arch_name) == 0
 733       && info->the_default)
 734     return true;
 735
 736   /* Exact match of the machine name (PRINTABLE_NAME)? */
 737   if (strcasecmp (string, info->printable_name) == 0)
 738     return true;
 739
 740   /* Given that printable_name contains no colon, attempt to match:
 741      ARCH_NAME [ ":" ] PRINTABLE_NAME? */
 742   printable_name_colon = strchr (info->printable_name, ':');
 743   if (printable_name_colon == NULL)
 744     {
 745       int strlen_arch_name = strlen (info->arch_name);
 746       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 747         {
 748           if (string[strlen_arch_name] == ':')
 749             {
 750               if (strcasecmp (string + strlen_arch_name + 1,
 751                               info->printable_name) == 0)
 752                 return true;
 753             }
 754           else
 755             {
 756               if (strcasecmp (string + strlen_arch_name,
 757                               info->printable_name) == 0)
 758                 return true;
 759             }
 760         }
 761     }
 762
 763   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 764      Attempt to match: <arch> <mach>? */
 765   if (printable_name_colon != NULL)
 766     {
 767       int colon_index = printable_name_colon - info->printable_name;
 768       if (strncasecmp (string, info->printable_name, colon_index) == 0
 769           && strcasecmp (string + colon_index,
 770                          info->printable_name + colon_index + 1) == 0)
 771         return true;
 772     }
 773
 774   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 775      attempt to match just <mach>, it could be ambigious.  This test
 776      is left until later. */
 777
 778   /* NOTE: The below is retained for compatibility only. Please do not
 779      add to this code */
 780
 781   /* See how much of the supplied string matches with the
 782      architecture, eg the string m68k:68020 would match the 68k entry
 783      up to the :, then we get left with the machine number */
 784
 785   for (ptr_src = string, ptr_tst = info->arch_name;
 786        *ptr_src && *ptr_tst;
 787        ptr_src++, ptr_tst++)
 788     {
 789       if (*ptr_src != *ptr_tst) break;
 790     }
 791
 792   /* Chewed up as much of the architecture as will match, skip any
 793      colons */
 794   if (*ptr_src == ':')
 795     ptr_src++;
 796
 797   if (*ptr_src == 0)
 798     {
 799       /* nothing more, then only keep this one if it is the default
 800          machine for this architecture */
 801       return info->the_default;
 802     }
 803
 804   number = 0;
 805   while (isdigit ((unsigned char) *ptr_src))
 806     {
 807       number = number * 10 + *ptr_src  - '0';
 808       ptr_src++;
 809     }
 810
 811   /* NOTE: The below is retained for compatibility only.
 812      PLEASE DO NOT ADD TO THIS CODE. */
 813
 814   switch (number)
 815     {
 816       /* FIXME: These are needed to parse IEEE objects.  */
 817       /* The following seven case's are here only for compatibility with
 818          older binutils (at least IEEE objects from binutils 2.9.1 require
 819          them).  */
 820     case bfd_mach_m68000:
 821     case bfd_mach_m68010:
 822     case bfd_mach_m68020:
 823     case bfd_mach_m68030:
 824     case bfd_mach_m68040:
 825     case bfd_mach_m68060:
 826     case bfd_mach_cpu32:
 827       arch = bfd_arch_m68k;
 828       break;
 829     case 68000:
 830       arch = bfd_arch_m68k;
 831       number = bfd_mach_m68000;
 832       break;
 833     case 68010:
 834       arch = bfd_arch_m68k;
 835       number = bfd_mach_m68010;
 836       break;
 837     case 68020:
 838       arch = bfd_arch_m68k;
 839       number = bfd_mach_m68020;
 840       break;
 841     case 68030:
 842       arch = bfd_arch_m68k;
 843       number = bfd_mach_m68030;
 844       break;
 845     case 68040:
 846       arch = bfd_arch_m68k;
 847       number = bfd_mach_m68040;
 848       break;
 849     case 68060:
 850       arch = bfd_arch_m68k;
 851       number = bfd_mach_m68060;
 852       break;
 853     case 68332:
 854       arch = bfd_arch_m68k;
 855       number = bfd_mach_cpu32;
 856       break;
 857
 858     case 32000:
 859       arch = bfd_arch_we32k;
 860       break;
 861
 862     case 3000:
 863       arch = bfd_arch_mips;
 864       number = bfd_mach_mips3000;
 865       break;
 866
 867     case 4000:
 868       arch = bfd_arch_mips;
 869       number = bfd_mach_mips4000;
 870       break;
 871
 872     case 6000:
 873       arch = bfd_arch_rs6000;
 874       break;
 875
 876     case 7410:
 877       arch = bfd_arch_sh;
 878       number = bfd_mach_sh_dsp;
 879       break;
 880
 881     case 7708:
 882       arch = bfd_arch_sh;
 883       number = bfd_mach_sh3;
 884       break;
 885
 886     case 7729:
 887       arch = bfd_arch_sh;
 888       number = bfd_mach_sh3_dsp;
 889       break;
 890
 891     case 7750:
 892       arch = bfd_arch_sh;
 893       number = bfd_mach_sh4;
 894       break;
 895
 896     default:
 897       return false;
 898     }
 899
 900   if (arch != info->arch)
 901     return false;
 902
 903   if (number != info->mach)
 904     return false;
 905
 906   return true;
 907 }
 908
 909
 910 /*
 911 FUNCTION
 912         bfd_get_arch_info
 913
 914 SYNOPSIS
 915         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 916
 917 DESCRIPTION
 918         Return the architecture info struct in @var{abfd}.
 919 */
 920
 921 const bfd_arch_info_type *
 922 bfd_get_arch_info (abfd)
 923      bfd *abfd;
 924 {
 925   return abfd->arch_info;
 926 }
 927
 928
 929 /*
 930 FUNCTION
 931         bfd_lookup_arch
 932
 933 SYNOPSIS
 934         const bfd_arch_info_type *bfd_lookup_arch
 935                 (enum bfd_architecture
 936                 arch,
 937                 unsigned long machine);
 938
 939 DESCRIPTION
 940         Look for the architecure info structure which matches the
 941         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 942         machine/architecture structure which marks itself as the
 943         default.
 944 */
 945
 946 const bfd_arch_info_type *
 947 bfd_lookup_arch (arch, machine)
 948      enum bfd_architecture arch;
 949      unsigned long machine;
 950 {
 951   const bfd_arch_info_type * const *app, *ap;
 952
 953   for (app = bfd_archures_list; *app != NULL; app++)
 954     {
 955       for (ap = *app; ap != NULL; ap = ap->next)
 956         {
 957           if (ap->arch == arch
 958               && (ap->mach == machine
 959                   || (machine == 0 && ap->the_default)))
 960             return ap;
 961         }
 962     }
 963
 964   return NULL;
 965 }
 966
 967
 968 /*
 969 FUNCTION
 970         bfd_printable_arch_mach
 971
 972 SYNOPSIS
 973         const char *bfd_printable_arch_mach
 974                 (enum bfd_architecture arch, unsigned long machine);
 975
 976 DESCRIPTION
 977         Return a printable string representing the architecture and
 978         machine type.
 979
 980         This routine is depreciated.
 981 */
 982
 983 const char *
 984 bfd_printable_arch_mach (arch, machine)
 985      enum bfd_architecture arch;
 986      unsigned long machine;
 987 {
 988     const bfd_arch_info_type * ap = bfd_lookup_arch (arch, machine);
 989
 990     if (ap)
 991       return ap->printable_name;
 992     return "UNKNOWN!";
 993 }
 994
 995 /*
 996 FUNCTION
 997         bfd_octets_per_byte
 998
 999 SYNOPSIS
1000         unsigned int bfd_octets_per_byte(bfd *abfd);
1001
1002 DESCRIPTION
1003         Return the number of octets (8-bit quantities) per target byte
1004         (minimum addressable unit).  In most cases, this will be one, but some
1005         DSP targets have 16, 32, or even 48 bits per byte.
1006
1007 */
1008
1009 unsigned int
1010 bfd_octets_per_byte (abfd)
1011      bfd * abfd;
1012 {
1013     return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1014                                           bfd_get_mach (abfd));
1015 }
1016
1017 /*
1018 FUNCTION
1019         bfd_arch_mach_octets_per_byte
1020
1021 SYNOPSIS
1022         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1023                                                    unsigned long machine);
1024
1025 DESCRIPTION
1026         See bfd_octets_per_byte.
1027
1028         This routine is provided for those cases where a bfd * is not
1029         available
1030 */
1031
1032 unsigned int
1033 bfd_arch_mach_octets_per_byte (arch, mach)
1034     enum bfd_architecture arch;
1035     unsigned long mach;
1036 {
1037     const bfd_arch_info_type * ap = bfd_lookup_arch (arch, mach);
1038
1039     if (ap)
1040       return ap->bits_per_byte / 8;
1041     return 1;
1042 }