bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   3    2000, 2001, 2002
   4    Free Software Foundation, Inc.
   5    Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
   6
   7 This file is part of BFD, the Binary File Descriptor library.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #include "bfd.h"
  24 #include "sysdep.h"
  25 #include "libbfd.h"
  26 #include "safe-ctype.h"
  27
  28 /*
  29
  30 SECTION
  31         Architectures
  32
  33         BFD keeps one atom in a BFD describing the
  34         architecture of the data attached to the BFD: a pointer to a
  35         <<bfd_arch_info_type>>.
  36
  37         Pointers to structures can be requested independently of a BFD
  38         so that an architecture's information can be interrogated
  39         without access to an open BFD.
  40
  41         The architecture information is provided by each architecture package.
  42         The set of default architectures is selected by the macro
  43         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  44         @file{config/@var{target}.mt} file of your choice.  If the name is not
  45         defined, then all the architectures supported are included.
  46
  47         When BFD starts up, all the architectures are called with an
  48         initialize method.  It is up to the architecture back end to
  49         insert as many items into the list of architectures as it wants to;
  50         generally this would be one for each machine and one for the
  51         default case (an item with a machine field of 0).
  52
  53         BFD's idea of an architecture is implemented in @file{archures.c}.
  54 */
  55
  56 /*
  57
  58 SUBSECTION
  59         bfd_architecture
  60
  61 DESCRIPTION
  62         This enum gives the object file's CPU architecture, in a
  63         global sense---i.e., what processor family does it belong to?
  64         Another field indicates which processor within
  65         the family is in use.  The machine gives a number which
  66         distinguishes different versions of the architecture,
  67         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  68         and 68020 and 68030 for Motorola 68020 and 68030.
  69
  70 .enum bfd_architecture
  71 .{
  72 .  bfd_arch_unknown,   {* File arch not known.  *}
  73 .  bfd_arch_obscure,   {* Arch known, not one of these.  *}
  74 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  75 .#define bfd_mach_m68000 1
  76 .#define bfd_mach_m68008 2
  77 .#define bfd_mach_m68010 3
  78 .#define bfd_mach_m68020 4
  79 .#define bfd_mach_m68030 5
  80 .#define bfd_mach_m68040 6
  81 .#define bfd_mach_m68060 7
  82 .#define bfd_mach_cpu32  8
  83 .#define bfd_mach_mcf5200  9
  84 .#define bfd_mach_mcf5206e 10
  85 .#define bfd_mach_mcf5307  11
  86 .#define bfd_mach_mcf5407  12
  87 .  bfd_arch_vax,       {* DEC Vax *}
  88 .  bfd_arch_i960,      {* Intel 960 *}
  89 .    {* The order of the following is important.
  90 .       lower number indicates a machine type that
  91 .       only accepts a subset of the instructions
  92 .       available to machines with higher numbers.
  93 .       The exception is the "ca", which is
  94 .       incompatible with all other machines except
  95 .       "core".  *}
  96 .
  97 .#define bfd_mach_i960_core      1
  98 .#define bfd_mach_i960_ka_sa     2
  99 .#define bfd_mach_i960_kb_sb     3
 100 .#define bfd_mach_i960_mc        4
 101 .#define bfd_mach_i960_xa        5
 102 .#define bfd_mach_i960_ca        6
 103 .#define bfd_mach_i960_jx        7
 104 .#define bfd_mach_i960_hx        8
 105 .
 106 .  bfd_arch_or32,      {* OpenRISC 32 *}
 107 .
 108 .  bfd_arch_a29k,      {* AMD 29000 *}
 109 .  bfd_arch_sparc,     {* SPARC *}
 110 .#define bfd_mach_sparc                 1
 111 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
 112 .#define bfd_mach_sparc_sparclet        2
 113 .#define bfd_mach_sparc_sparclite       3
 114 .#define bfd_mach_sparc_v8plus          4
 115 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns.  *}
 116 .#define bfd_mach_sparc_sparclite_le    6
 117 .#define bfd_mach_sparc_v9              7
 118 .#define bfd_mach_sparc_v9a             8 {* with ultrasparc add'ns.  *}
 119 .#define bfd_mach_sparc_v8plusb         9 {* with cheetah add'ns.  *}
 120 .#define bfd_mach_sparc_v9b             10 {* with cheetah add'ns.  *}
 121 .{* Nonzero if MACH has the v9 instruction set.  *}
 122 .#define bfd_mach_sparc_v9_p(mach) \
 123 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 124 .   && (mach) != bfd_mach_sparc_sparclite_le)
 125 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 126 .#define bfd_mach_mips3000              3000
 127 .#define bfd_mach_mips3900              3900
 128 .#define bfd_mach_mips4000              4000
 129 .#define bfd_mach_mips4010              4010
 130 .#define bfd_mach_mips4100              4100
 131 .#define bfd_mach_mips4111              4111
 132 .#define bfd_mach_mips4300              4300
 133 .#define bfd_mach_mips4400              4400
 134 .#define bfd_mach_mips4600              4600
 135 .#define bfd_mach_mips4650              4650
 136 .#define bfd_mach_mips5000              5000
 137 .#define bfd_mach_mips6000              6000
 138 .#define bfd_mach_mips8000              8000
 139 .#define bfd_mach_mips10000             10000
 140 .#define bfd_mach_mips12000             12000
 141 .#define bfd_mach_mips16                16
 142 .#define bfd_mach_mips5                 5
 143 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 144 .#define bfd_mach_mipsisa32             32
 145 .#define bfd_mach_mipsisa64             64
 146 .  bfd_arch_i386,      {* Intel 386 *}
 147 .#define bfd_mach_i386_i386 0
 148 .#define bfd_mach_i386_i8086 1
 149 .#define bfd_mach_i386_i386_intel_syntax 2
 150 .#define bfd_mach_x86_64 3
 151 .#define bfd_mach_x86_64_intel_syntax 4
 152 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 153 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 154 .  bfd_arch_i860,      {* Intel 860 *}
 155 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 156 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 157 .  bfd_arch_alliant,   {* Alliant *}
 158 .  bfd_arch_convex,    {* Convex *}
 159 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 160 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 161 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 162 .#define bfd_mach_h8300   1
 163 .#define bfd_mach_h8300h  2
 164 .#define bfd_mach_h8300s  3
 165 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 166 .  bfd_arch_powerpc,   {* PowerPC *}
 167 .#define bfd_mach_ppc           0
 168 .#define bfd_mach_ppc64         1
 169 .#define bfd_mach_ppc_403       403
 170 .#define bfd_mach_ppc_403gc     4030
 171 .#define bfd_mach_ppc_505       505
 172 .#define bfd_mach_ppc_601       601
 173 .#define bfd_mach_ppc_602       602
 174 .#define bfd_mach_ppc_603       603
 175 .#define bfd_mach_ppc_ec603e    6031
 176 .#define bfd_mach_ppc_604       604
 177 .#define bfd_mach_ppc_620       620
 178 .#define bfd_mach_ppc_630       630
 179 .#define bfd_mach_ppc_750       750
 180 .#define bfd_mach_ppc_860       860
 181 .#define bfd_mach_ppc_a35       35
 182 .#define bfd_mach_ppc_rs64ii    642
 183 .#define bfd_mach_ppc_rs64iii   643
 184 .#define bfd_mach_ppc_7400      7400
 185 .#define bfd_mach_ppc_e500      500
 186 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 187 .#define bfd_mach_rs6k          0
 188 .#define bfd_mach_rs6k_rs1      6001
 189 .#define bfd_mach_rs6k_rsc      6003
 190 .#define bfd_mach_rs6k_rs2      6002
 191 .  bfd_arch_hppa,      {* HP PA RISC *}
 192 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 193 .#define bfd_mach_d10v          0
 194 .#define bfd_mach_d10v_ts2      2
 195 .#define bfd_mach_d10v_ts3      3
 196 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 197 .  bfd_arch_dlx,       {* DLX *}
 198 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 199 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 200 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 201 .#define bfd_mach_z8001         1
 202 .#define bfd_mach_z8002         2
 203 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 204 .  bfd_arch_sh,        {* Hitachi SH *}
 205 .#define bfd_mach_sh            0
 206 .#define bfd_mach_sh2        0x20
 207 .#define bfd_mach_sh_dsp     0x2d
 208 .#define bfd_mach_sh3        0x30
 209 .#define bfd_mach_sh3_dsp    0x3d
 210 .#define bfd_mach_sh3e       0x3e
 211 .#define bfd_mach_sh4        0x40
 212 .#define bfd_mach_sh5        0x50
 213 .  bfd_arch_alpha,     {* Dec Alpha *}
 214 .#define bfd_mach_alpha_ev4  0x10
 215 .#define bfd_mach_alpha_ev5  0x20
 216 .#define bfd_mach_alpha_ev6  0x30
 217 .  bfd_arch_arm,       {* Advanced Risc Machines ARM.  *}
 218 .#define bfd_mach_arm_2         1
 219 .#define bfd_mach_arm_2a        2
 220 .#define bfd_mach_arm_3         3
 221 .#define bfd_mach_arm_3M        4
 222 .#define bfd_mach_arm_4         5
 223 .#define bfd_mach_arm_4T        6
 224 .#define bfd_mach_arm_5         7
 225 .#define bfd_mach_arm_5T        8
 226 .#define bfd_mach_arm_5TE       9
 227 .#define bfd_mach_arm_XScale    10
 228 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 229 .  bfd_arch_w65,       {* WDC 65816 *}
 230 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 231 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 232 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 233 .  bfd_arch_v850,      {* NEC V850 *}
 234 .#define bfd_mach_v850          0
 235 .#define bfd_mach_v850e         'E'
 236 .#define bfd_mach_v850ea        'A'
 237 .  bfd_arch_arc,       {* ARC Cores *}
 238 .#define bfd_mach_arc_5         0
 239 .#define bfd_mach_arc_6         1
 240 .#define bfd_mach_arc_7         2
 241 .#define bfd_mach_arc_8         3
 242 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 243 .#define bfd_mach_m32r          0 {* For backwards compatibility.  *}
 244 .#define bfd_mach_m32rx         'x'
 245 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 246 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 247 .#define bfd_mach_mn10300               300
 248 .#define bfd_mach_am33          330
 249 .  bfd_arch_fr30,
 250 .#define bfd_mach_fr30          0x46523330
 251 .  bfd_arch_frv,
 252 .#define bfd_mach_frv           0
 253 .#define bfd_mach_frvsimple     1
 254 .#define bfd_mach_fr300         300
 255 .#define bfd_mach_fr400         400
 256 .#define bfd_mach_frvtomcat     499     {* fr500 prototype *}
 257 .#define bfd_mach_fr500         500
 258 .  bfd_arch_mcore,
 259 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 260 .#define bfd_mach_ia64_elf64    0
 261 .#define bfd_mach_ia64_elf32    1
 262 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 263 .#define bfd_mach_ip2022        0
 264 .#define bfd_mach_ip2022ext     1
 265 .  bfd_arch_pj,
 266 .  bfd_arch_avr,       {* Atmel AVR microcontrollers.  *}
 267 .#define bfd_mach_avr1          1
 268 .#define bfd_mach_avr2          2
 269 .#define bfd_mach_avr3          3
 270 .#define bfd_mach_avr4          4
 271 .#define bfd_mach_avr5          5
 272 .  bfd_arch_cris,      {* Axis CRIS *}
 273 .  bfd_arch_s390,      {* IBM s390 *}
 274 .#define bfd_mach_s390_31       0
 275 .#define bfd_mach_s390_64       1
 276 .  bfd_arch_openrisc,  {* OpenRISC *}
 277 .  bfd_arch_mmix,      {* Donald Knuth's educational processor.  *}
 278 .  bfd_arch_xstormy16,
 279 .#define bfd_mach_xstormy16     0
 280 .  bfd_arch_last
 281 .  };
 282 */
 283
 284 /*
 285 SUBSECTION
 286         bfd_arch_info
 287
 288 DESCRIPTION
 289         This structure contains information on architectures for use
 290         within BFD.
 291
 292 .
 293 .typedef struct bfd_arch_info
 294 .{
 295 .  int bits_per_word;
 296 .  int bits_per_address;
 297 .  int bits_per_byte;
 298 .  enum bfd_architecture arch;
 299 .  unsigned long mach;
 300 .  const char *arch_name;
 301 .  const char *printable_name;
 302 .  unsigned int section_align_power;
 303 .  {* True if this is the default machine for the architecture.
 304 .     The default arch should be the first entry for an arch so that
 305 .     all the entries for that arch can be accessed via <<next>>.  *}
 306 .  boolean the_default;
 307 .  const struct bfd_arch_info * (*compatible)
 308 .       PARAMS ((const struct bfd_arch_info *a,
 309 .                const struct bfd_arch_info *b));
 310 .
 311 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 312 .
 313 .  const struct bfd_arch_info *next;
 314 .}
 315 .bfd_arch_info_type;
 316 .
 317 */
 318
 319 extern const bfd_arch_info_type bfd_a29k_arch;
 320 extern const bfd_arch_info_type bfd_alpha_arch;
 321 extern const bfd_arch_info_type bfd_arc_arch;
 322 extern const bfd_arch_info_type bfd_arm_arch;
 323 extern const bfd_arch_info_type bfd_avr_arch;
 324 extern const bfd_arch_info_type bfd_cris_arch;
 325 extern const bfd_arch_info_type bfd_d10v_arch;
 326 extern const bfd_arch_info_type bfd_d30v_arch;
 327 extern const bfd_arch_info_type bfd_dlx_arch;
 328 extern const bfd_arch_info_type bfd_fr30_arch;
 329 extern const bfd_arch_info_type bfd_frv_arch;
 330 extern const bfd_arch_info_type bfd_h8300_arch;
 331 extern const bfd_arch_info_type bfd_h8500_arch;
 332 extern const bfd_arch_info_type bfd_hppa_arch;
 333 extern const bfd_arch_info_type bfd_i370_arch;
 334 extern const bfd_arch_info_type bfd_i386_arch;
 335 extern const bfd_arch_info_type bfd_i860_arch;
 336 extern const bfd_arch_info_type bfd_i960_arch;
 337 extern const bfd_arch_info_type bfd_ia64_arch;
 338 extern const bfd_arch_info_type bfd_ip2k_arch;
 339 extern const bfd_arch_info_type bfd_m32r_arch;
 340 extern const bfd_arch_info_type bfd_m68hc11_arch;
 341 extern const bfd_arch_info_type bfd_m68hc12_arch;
 342 extern const bfd_arch_info_type bfd_m68k_arch;
 343 extern const bfd_arch_info_type bfd_m88k_arch;
 344 extern const bfd_arch_info_type bfd_mcore_arch;
 345 extern const bfd_arch_info_type bfd_mips_arch;
 346 extern const bfd_arch_info_type bfd_mmix_arch;
 347 extern const bfd_arch_info_type bfd_mn10200_arch;
 348 extern const bfd_arch_info_type bfd_mn10300_arch;
 349 extern const bfd_arch_info_type bfd_ns32k_arch;
 350 extern const bfd_arch_info_type bfd_openrisc_arch;
 351 extern const bfd_arch_info_type bfd_or32_arch;
 352 extern const bfd_arch_info_type bfd_pdp11_arch;
 353 extern const bfd_arch_info_type bfd_pj_arch;
 354 extern const bfd_arch_info_type bfd_powerpc_archs[];
 355 #define bfd_powerpc_arch bfd_powerpc_archs[0]
 356 extern const bfd_arch_info_type bfd_rs6000_arch;
 357 extern const bfd_arch_info_type bfd_s390_arch;
 358 extern const bfd_arch_info_type bfd_sh_arch;
 359 extern const bfd_arch_info_type bfd_sparc_arch;
 360 extern const bfd_arch_info_type bfd_tic30_arch;
 361 extern const bfd_arch_info_type bfd_tic54x_arch;
 362 extern const bfd_arch_info_type bfd_tic80_arch;
 363 extern const bfd_arch_info_type bfd_v850_arch;
 364 extern const bfd_arch_info_type bfd_vax_arch;
 365 extern const bfd_arch_info_type bfd_we32k_arch;
 366 extern const bfd_arch_info_type bfd_w65_arch;
 367 extern const bfd_arch_info_type bfd_xstormy16_arch;
 368 extern const bfd_arch_info_type bfd_z8k_arch;
 369
 370 static const bfd_arch_info_type * const bfd_archures_list[] =
 371   {
 372 #ifdef SELECT_ARCHITECTURES
 373     SELECT_ARCHITECTURES,
 374 #else
 375     &bfd_a29k_arch,
 376     &bfd_alpha_arch,
 377     &bfd_arc_arch,
 378     &bfd_arm_arch,
 379     &bfd_avr_arch,
 380     &bfd_cris_arch,
 381     &bfd_d10v_arch,
 382     &bfd_d30v_arch,
 383     &bfd_dlx_arch,
 384     &bfd_fr30_arch,
 385     &bfd_frv_arch,
 386     &bfd_h8300_arch,
 387     &bfd_h8500_arch,
 388     &bfd_hppa_arch,
 389     &bfd_i370_arch,
 390     &bfd_i386_arch,
 391     &bfd_i860_arch,
 392     &bfd_i960_arch,
 393     &bfd_ia64_arch,
 394     &bfd_ip2k_arch,
 395     &bfd_m32r_arch,
 396     &bfd_m68hc11_arch,
 397     &bfd_m68hc12_arch,
 398     &bfd_m68k_arch,
 399     &bfd_m88k_arch,
 400     &bfd_mcore_arch,
 401     &bfd_mips_arch,
 402     &bfd_mmix_arch,
 403     &bfd_mn10200_arch,
 404     &bfd_mn10300_arch,
 405     &bfd_ns32k_arch,
 406     &bfd_openrisc_arch,
 407     &bfd_or32_arch,
 408     &bfd_pdp11_arch,
 409     &bfd_powerpc_arch,
 410     &bfd_rs6000_arch,
 411     &bfd_s390_arch,
 412     &bfd_sh_arch,
 413     &bfd_sparc_arch,
 414     &bfd_tic30_arch,
 415     &bfd_tic54x_arch,
 416     &bfd_tic80_arch,
 417     &bfd_v850_arch,
 418     &bfd_vax_arch,
 419     &bfd_w65_arch,
 420     &bfd_we32k_arch,
 421     &bfd_xstormy16_arch,
 422     &bfd_z8k_arch,
 423 #endif
 424   0
 425 };
 426
 427 /*
 428 FUNCTION
 429         bfd_printable_name
 430
 431 SYNOPSIS
 432         const char *bfd_printable_name(bfd *abfd);
 433
 434 DESCRIPTION
 435         Return a printable string representing the architecture and machine
 436         from the pointer to the architecture info structure.
 437
 438 */
 439
 440 const char *
 441 bfd_printable_name (abfd)
 442      bfd *abfd;
 443 {
 444   return abfd->arch_info->printable_name;
 445 }
 446
 447 /*
 448 FUNCTION
 449         bfd_scan_arch
 450
 451 SYNOPSIS
 452         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 453
 454 DESCRIPTION
 455         Figure out if BFD supports any cpu which could be described with
 456         the name @var{string}.  Return a pointer to an <<arch_info>>
 457         structure if a machine is found, otherwise NULL.
 458 */
 459
 460 const bfd_arch_info_type *
 461 bfd_scan_arch (string)
 462      const char *string;
 463 {
 464   const bfd_arch_info_type * const *app, *ap;
 465
 466   /* Look through all the installed architectures.  */
 467   for (app = bfd_archures_list; *app != NULL; app++)
 468     {
 469       for (ap = *app; ap != NULL; ap = ap->next)
 470         {
 471           if (ap->scan (ap, string))
 472             return ap;
 473         }
 474     }
 475
 476   return NULL;
 477 }
 478
 479 /*
 480 FUNCTION
 481         bfd_arch_list
 482
 483 SYNOPSIS
 484         const char **bfd_arch_list(void);
 485
 486 DESCRIPTION
 487         Return a freshly malloced NULL-terminated vector of the names
 488         of all the valid BFD architectures.  Do not modify the names.
 489 */
 490
 491 const char **
 492 bfd_arch_list ()
 493 {
 494   int vec_length = 0;
 495   const char **name_ptr;
 496   const char **name_list;
 497   const bfd_arch_info_type * const *app;
 498   bfd_size_type amt;
 499
 500   /* Determine the number of architectures.  */
 501   vec_length = 0;
 502   for (app = bfd_archures_list; *app != NULL; app++)
 503     {
 504       const bfd_arch_info_type *ap;
 505       for (ap = *app; ap != NULL; ap = ap->next)
 506         {
 507           vec_length++;
 508         }
 509     }
 510
 511   amt = (vec_length + 1) * sizeof (char **);
 512   name_list = (const char **) bfd_malloc (amt);
 513   if (name_list == NULL)
 514     return NULL;
 515
 516   /* Point the list at each of the names.  */
 517   name_ptr = name_list;
 518   for (app = bfd_archures_list; *app != NULL; app++)
 519     {
 520       const bfd_arch_info_type *ap;
 521       for (ap = *app; ap != NULL; ap = ap->next)
 522         {
 523           *name_ptr = ap->printable_name;
 524           name_ptr++;
 525         }
 526     }
 527   *name_ptr = NULL;
 528
 529   return name_list;
 530 }
 531
 532 /*
 533 FUNCTION
 534         bfd_arch_get_compatible
 535
 536 SYNOPSIS
 537         const bfd_arch_info_type *bfd_arch_get_compatible(
 538                 const bfd *abfd,
 539                 const bfd *bbfd);
 540
 541 DESCRIPTION
 542         Determine whether two BFDs'
 543         architectures and machine types are compatible.  Calculates
 544         the lowest common denominator between the two architectures
 545         and machine types implied by the BFDs and returns a pointer to
 546         an <<arch_info>> structure describing the compatible machine.
 547 */
 548
 549 const bfd_arch_info_type *
 550 bfd_arch_get_compatible (abfd, bbfd)
 551      const bfd *abfd;
 552      const bfd *bbfd;
 553 {
 554   /* If either architecture is unknown, then all we can do is assume
 555      the user knows what he's doing.  */
 556   if (abfd->arch_info->arch == bfd_arch_unknown)
 557     return bbfd->arch_info;
 558   if (bbfd->arch_info->arch == bfd_arch_unknown)
 559     return abfd->arch_info;
 560
 561   /* Otherwise architecture-specific code has to decide.  */
 562   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 563 }
 564
 565 /*
 566 INTERNAL_DEFINITION
 567         bfd_default_arch_struct
 568
 569 DESCRIPTION
 570         The <<bfd_default_arch_struct>> is an item of
 571         <<bfd_arch_info_type>> which has been initialized to a fairly
 572         generic state.  A BFD starts life by pointing to this
 573         structure, until the correct back end has determined the real
 574         architecture of the file.
 575
 576 .extern const bfd_arch_info_type bfd_default_arch_struct;
 577 */
 578
 579 const bfd_arch_info_type bfd_default_arch_struct = {
 580   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 581   bfd_default_compatible,
 582   bfd_default_scan,
 583   0,
 584 };
 585
 586 /*
 587 FUNCTION
 588         bfd_set_arch_info
 589
 590 SYNOPSIS
 591         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 592
 593 DESCRIPTION
 594         Set the architecture info of @var{abfd} to @var{arg}.
 595 */
 596
 597 void
 598 bfd_set_arch_info (abfd, arg)
 599      bfd *abfd;
 600      const bfd_arch_info_type *arg;
 601 {
 602   abfd->arch_info = arg;
 603 }
 604
 605 /*
 606 INTERNAL_FUNCTION
 607         bfd_default_set_arch_mach
 608
 609 SYNOPSIS
 610         boolean bfd_default_set_arch_mach(bfd *abfd,
 611                 enum bfd_architecture arch,
 612                 unsigned long mach);
 613
 614 DESCRIPTION
 615         Set the architecture and machine type in BFD @var{abfd}
 616         to @var{arch} and @var{mach}.  Find the correct
 617         pointer to a structure and insert it into the <<arch_info>>
 618         pointer.
 619 */
 620
 621 boolean
 622 bfd_default_set_arch_mach (abfd, arch, mach)
 623      bfd *abfd;
 624      enum bfd_architecture arch;
 625      unsigned long mach;
 626 {
 627   abfd->arch_info = bfd_lookup_arch (arch, mach);
 628   if (abfd->arch_info != NULL)
 629     return true;
 630
 631   abfd->arch_info = &bfd_default_arch_struct;
 632   bfd_set_error (bfd_error_bad_value);
 633   return false;
 634 }
 635
 636 /*
 637 FUNCTION
 638         bfd_get_arch
 639
 640 SYNOPSIS
 641         enum bfd_architecture bfd_get_arch(bfd *abfd);
 642
 643 DESCRIPTION
 644         Return the enumerated type which describes the BFD @var{abfd}'s
 645         architecture.
 646 */
 647
 648 enum bfd_architecture
 649 bfd_get_arch (abfd)
 650      bfd *abfd;
 651 {
 652   return abfd->arch_info->arch;
 653 }
 654
 655 /*
 656 FUNCTION
 657         bfd_get_mach
 658
 659 SYNOPSIS
 660         unsigned long bfd_get_mach(bfd *abfd);
 661
 662 DESCRIPTION
 663         Return the long type which describes the BFD @var{abfd}'s
 664         machine.
 665 */
 666
 667 unsigned long
 668 bfd_get_mach (abfd)
 669      bfd *abfd;
 670 {
 671   return abfd->arch_info->mach;
 672 }
 673
 674 /*
 675 FUNCTION
 676         bfd_arch_bits_per_byte
 677
 678 SYNOPSIS
 679         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 680
 681 DESCRIPTION
 682         Return the number of bits in one of the BFD @var{abfd}'s
 683         architecture's bytes.
 684 */
 685
 686 unsigned int
 687 bfd_arch_bits_per_byte (abfd)
 688      bfd *abfd;
 689 {
 690   return abfd->arch_info->bits_per_byte;
 691 }
 692
 693 /*
 694 FUNCTION
 695         bfd_arch_bits_per_address
 696
 697 SYNOPSIS
 698         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 699
 700 DESCRIPTION
 701         Return the number of bits in one of the BFD @var{abfd}'s
 702         architecture's addresses.
 703 */
 704
 705 unsigned int
 706 bfd_arch_bits_per_address (abfd)
 707      bfd *abfd;
 708 {
 709   return abfd->arch_info->bits_per_address;
 710 }
 711
 712 /*
 713 INTERNAL_FUNCTION
 714         bfd_default_compatible
 715
 716 SYNOPSIS
 717         const bfd_arch_info_type *bfd_default_compatible
 718         (const bfd_arch_info_type *a,
 719         const bfd_arch_info_type *b);
 720
 721 DESCRIPTION
 722         The default function for testing for compatibility.
 723 */
 724
 725 const bfd_arch_info_type *
 726 bfd_default_compatible (a, b)
 727      const bfd_arch_info_type *a;
 728      const bfd_arch_info_type *b;
 729 {
 730   if (a->arch != b->arch)
 731     return NULL;
 732
 733   if (a->bits_per_word != b->bits_per_word)
 734     return NULL;
 735
 736   if (a->mach > b->mach)
 737     return a;
 738
 739   if (b->mach > a->mach)
 740     return b;
 741
 742   return a;
 743 }
 744
 745 /*
 746 INTERNAL_FUNCTION
 747         bfd_default_scan
 748
 749 SYNOPSIS
 750         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 751
 752 DESCRIPTION
 753         The default function for working out whether this is an
 754         architecture hit and a machine hit.
 755 */
 756
 757 boolean
 758 bfd_default_scan (info, string)
 759      const bfd_arch_info_type *info;
 760      const char *string;
 761 {
 762   const char *ptr_src;
 763   const char *ptr_tst;
 764   unsigned long number;
 765   enum bfd_architecture arch;
 766   const char *printable_name_colon;
 767
 768   /* Exact match of the architecture name (ARCH_NAME) and also the
 769      default architecture?  */
 770   if (strcasecmp (string, info->arch_name) == 0
 771       && info->the_default)
 772     return true;
 773
 774   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 775   if (strcasecmp (string, info->printable_name) == 0)
 776     return true;
 777
 778   /* Given that printable_name contains no colon, attempt to match:
 779      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 780   printable_name_colon = strchr (info->printable_name, ':');
 781   if (printable_name_colon == NULL)
 782     {
 783       size_t strlen_arch_name = strlen (info->arch_name);
 784       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 785         {
 786           if (string[strlen_arch_name] == ':')
 787             {
 788               if (strcasecmp (string + strlen_arch_name + 1,
 789                               info->printable_name) == 0)
 790                 return true;
 791             }
 792           else
 793             {
 794               if (strcasecmp (string + strlen_arch_name,
 795                               info->printable_name) == 0)
 796                 return true;
 797             }
 798         }
 799     }
 800
 801   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 802      Attempt to match: <arch> <mach>?  */
 803   if (printable_name_colon != NULL)
 804     {
 805       size_t colon_index = printable_name_colon - info->printable_name;
 806       if (strncasecmp (string, info->printable_name, colon_index) == 0
 807           && strcasecmp (string + colon_index,
 808                          info->printable_name + colon_index + 1) == 0)
 809         return true;
 810     }
 811
 812   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 813      attempt to match just <mach>, it could be ambigious.  This test
 814      is left until later.  */
 815
 816   /* NOTE: The below is retained for compatibility only.  Please do
 817      not add to this code.  */
 818
 819   /* See how much of the supplied string matches with the
 820      architecture, eg the string m68k:68020 would match the 68k entry
 821      up to the :, then we get left with the machine number.  */
 822
 823   for (ptr_src = string, ptr_tst = info->arch_name;
 824        *ptr_src && *ptr_tst;
 825        ptr_src++, ptr_tst++)
 826     {
 827       if (*ptr_src != *ptr_tst)
 828         break;
 829     }
 830
 831   /* Chewed up as much of the architecture as will match, skip any
 832      colons.  */
 833   if (*ptr_src == ':')
 834     ptr_src++;
 835
 836   if (*ptr_src == 0)
 837     {
 838       /* Nothing more, then only keep this one if it is the default
 839          machine for this architecture.  */
 840       return info->the_default;
 841     }
 842
 843   number = 0;
 844   while (ISDIGIT (*ptr_src))
 845     {
 846       number = number * 10 + *ptr_src - '0';
 847       ptr_src++;
 848     }
 849
 850   /* NOTE: The below is retained for compatibility only.
 851      PLEASE DO NOT ADD TO THIS CODE.  */
 852
 853   switch (number)
 854     {
 855       /* FIXME: These are needed to parse IEEE objects.  */
 856       /* The following seven case's are here only for compatibility with
 857          older binutils (at least IEEE objects from binutils 2.9.1 require
 858          them).  */
 859     case bfd_mach_m68000:
 860     case bfd_mach_m68010:
 861     case bfd_mach_m68020:
 862     case bfd_mach_m68030:
 863     case bfd_mach_m68040:
 864     case bfd_mach_m68060:
 865     case bfd_mach_cpu32:
 866       arch = bfd_arch_m68k;
 867       break;
 868     case 68000:
 869       arch = bfd_arch_m68k;
 870       number = bfd_mach_m68000;
 871       break;
 872     case 68010:
 873       arch = bfd_arch_m68k;
 874       number = bfd_mach_m68010;
 875       break;
 876     case 68020:
 877       arch = bfd_arch_m68k;
 878       number = bfd_mach_m68020;
 879       break;
 880     case 68030:
 881       arch = bfd_arch_m68k;
 882       number = bfd_mach_m68030;
 883       break;
 884     case 68040:
 885       arch = bfd_arch_m68k;
 886       number = bfd_mach_m68040;
 887       break;
 888     case 68060:
 889       arch = bfd_arch_m68k;
 890       number = bfd_mach_m68060;
 891       break;
 892     case 68332:
 893       arch = bfd_arch_m68k;
 894       number = bfd_mach_cpu32;
 895       break;
 896     case 5200:
 897       arch = bfd_arch_m68k;
 898       number = bfd_mach_mcf5200;
 899       break;
 900     case 5206:
 901       arch = bfd_arch_m68k;
 902       number = bfd_mach_mcf5206e;
 903       break;
 904     case 5307:
 905       arch = bfd_arch_m68k;
 906       number = bfd_mach_mcf5307;
 907       break;
 908     case 5407:
 909       arch = bfd_arch_m68k;
 910       number = bfd_mach_mcf5407;
 911       break;
 912
 913     case 32000:
 914       arch = bfd_arch_we32k;
 915       break;
 916
 917     case 3000:
 918       arch = bfd_arch_mips;
 919       number = bfd_mach_mips3000;
 920       break;
 921
 922     case 4000:
 923       arch = bfd_arch_mips;
 924       number = bfd_mach_mips4000;
 925       break;
 926
 927     case 6000:
 928       arch = bfd_arch_rs6000;
 929       break;
 930
 931     case 7410:
 932       arch = bfd_arch_sh;
 933       number = bfd_mach_sh_dsp;
 934       break;
 935
 936     case 7708:
 937       arch = bfd_arch_sh;
 938       number = bfd_mach_sh3;
 939       break;
 940
 941     case 7729:
 942       arch = bfd_arch_sh;
 943       number = bfd_mach_sh3_dsp;
 944       break;
 945
 946     case 7750:
 947       arch = bfd_arch_sh;
 948       number = bfd_mach_sh4;
 949       break;
 950
 951     default:
 952       return false;
 953     }
 954
 955   if (arch != info->arch)
 956     return false;
 957
 958   if (number != info->mach)
 959     return false;
 960
 961   return true;
 962 }
 963
 964 /*
 965 FUNCTION
 966         bfd_get_arch_info
 967
 968 SYNOPSIS
 969         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 970
 971 DESCRIPTION
 972         Return the architecture info struct in @var{abfd}.
 973 */
 974
 975 const bfd_arch_info_type *
 976 bfd_get_arch_info (abfd)
 977      bfd *abfd;
 978 {
 979   return abfd->arch_info;
 980 }
 981
 982 /*
 983 FUNCTION
 984         bfd_lookup_arch
 985
 986 SYNOPSIS
 987         const bfd_arch_info_type *bfd_lookup_arch
 988                 (enum bfd_architecture
 989                 arch,
 990                 unsigned long machine);
 991
 992 DESCRIPTION
 993         Look for the architecure info structure which matches the
 994         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 995         machine/architecture structure which marks itself as the
 996         default.
 997 */
 998
 999 const bfd_arch_info_type *
1000 bfd_lookup_arch (arch, machine)
1001      enum bfd_architecture arch;
1002      unsigned long machine;
1003 {
1004   const bfd_arch_info_type * const *app, *ap;
1005
1006   for (app = bfd_archures_list; *app != NULL; app++)
1007     {
1008       for (ap = *app; ap != NULL; ap = ap->next)
1009         {
1010           if (ap->arch == arch
1011               && (ap->mach == machine
1012                   || (machine == 0 && ap->the_default)))
1013             return ap;
1014         }
1015     }
1016
1017   return NULL;
1018 }
1019
1020 /*
1021 FUNCTION
1022         bfd_printable_arch_mach
1023
1024 SYNOPSIS
1025         const char *bfd_printable_arch_mach
1026                 (enum bfd_architecture arch, unsigned long machine);
1027
1028 DESCRIPTION
1029         Return a printable string representing the architecture and
1030         machine type.
1031
1032         This routine is depreciated.
1033 */
1034
1035 const char *
1036 bfd_printable_arch_mach (arch, machine)
1037      enum bfd_architecture arch;
1038      unsigned long machine;
1039 {
1040   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1041
1042   if (ap)
1043     return ap->printable_name;
1044   return "UNKNOWN!";
1045 }
1046
1047 /*
1048 FUNCTION
1049         bfd_octets_per_byte
1050
1051 SYNOPSIS
1052         unsigned int bfd_octets_per_byte(bfd *abfd);
1053
1054 DESCRIPTION
1055         Return the number of octets (8-bit quantities) per target byte
1056         (minimum addressable unit).  In most cases, this will be one, but some
1057         DSP targets have 16, 32, or even 48 bits per byte.
1058 */
1059
1060 unsigned int
1061 bfd_octets_per_byte (abfd)
1062      bfd *abfd;
1063 {
1064   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1065                                         bfd_get_mach (abfd));
1066 }
1067
1068 /*
1069 FUNCTION
1070         bfd_arch_mach_octets_per_byte
1071
1072 SYNOPSIS
1073         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1074                                                    unsigned long machine);
1075
1076 DESCRIPTION
1077         See bfd_octets_per_byte.
1078
1079         This routine is provided for those cases where a bfd * is not
1080         available
1081 */
1082
1083 unsigned int
1084 bfd_arch_mach_octets_per_byte (arch, mach)
1085      enum bfd_architecture arch;
1086      unsigned long mach;
1087 {
1088   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1089
1090   if (ap)
1091     return ap->bits_per_byte / 8;
1092   return 1;
1093 }