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, 2003
   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_mips4120              4120
 133 .#define bfd_mach_mips4300              4300
 134 .#define bfd_mach_mips4400              4400
 135 .#define bfd_mach_mips4600              4600
 136 .#define bfd_mach_mips4650              4650
 137 .#define bfd_mach_mips5000              5000
 138 .#define bfd_mach_mips5400              5400
 139 .#define bfd_mach_mips5500              5500
 140 .#define bfd_mach_mips6000              6000
 141 .#define bfd_mach_mips7000              7000
 142 .#define bfd_mach_mips8000              8000
 143 .#define bfd_mach_mips10000             10000
 144 .#define bfd_mach_mips12000             12000
 145 .#define bfd_mach_mips16                16
 146 .#define bfd_mach_mips5                 5
 147 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 148 .#define bfd_mach_mipsisa32             32
 149 .#define bfd_mach_mipsisa32r2           33
 150 .#define bfd_mach_mipsisa64             64
 151 .  bfd_arch_i386,      {* Intel 386 *}
 152 .#define bfd_mach_i386_i386 1
 153 .#define bfd_mach_i386_i8086 2
 154 .#define bfd_mach_i386_i386_intel_syntax 3
 155 .#define bfd_mach_x86_64 64
 156 .#define bfd_mach_x86_64_intel_syntax 65
 157 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 158 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 159 .  bfd_arch_i860,      {* Intel 860 *}
 160 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 161 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 162 .  bfd_arch_alliant,   {* Alliant *}
 163 .  bfd_arch_convex,    {* Convex *}
 164 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 165 .  bfd_arch_m98k,      {* Motorola 98xxx *}
 166 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 167 .  bfd_arch_h8300,     {* Renesas H8/300 (formerly Hitachi H8/300) *}
 168 .#define bfd_mach_h8300    1
 169 .#define bfd_mach_h8300h   2
 170 .#define bfd_mach_h8300s   3
 171 .#define bfd_mach_h8300hn  4
 172 .#define bfd_mach_h8300sn  5
 173 .#define bfd_mach_h8300sx  6
 174 .#define bfd_mach_h8300sxn 7
 175 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 176 .  bfd_arch_powerpc,   {* PowerPC *}
 177 .#define bfd_mach_ppc           32
 178 .#define bfd_mach_ppc64         64
 179 .#define bfd_mach_ppc_403       403
 180 .#define bfd_mach_ppc_403gc     4030
 181 .#define bfd_mach_ppc_505       505
 182 .#define bfd_mach_ppc_601       601
 183 .#define bfd_mach_ppc_602       602
 184 .#define bfd_mach_ppc_603       603
 185 .#define bfd_mach_ppc_ec603e    6031
 186 .#define bfd_mach_ppc_604       604
 187 .#define bfd_mach_ppc_620       620
 188 .#define bfd_mach_ppc_630       630
 189 .#define bfd_mach_ppc_750       750
 190 .#define bfd_mach_ppc_860       860
 191 .#define bfd_mach_ppc_a35       35
 192 .#define bfd_mach_ppc_rs64ii    642
 193 .#define bfd_mach_ppc_rs64iii   643
 194 .#define bfd_mach_ppc_7400      7400
 195 .#define bfd_mach_ppc_e500      500
 196 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 197 .#define bfd_mach_rs6k          6000
 198 .#define bfd_mach_rs6k_rs1      6001
 199 .#define bfd_mach_rs6k_rsc      6003
 200 .#define bfd_mach_rs6k_rs2      6002
 201 .  bfd_arch_hppa,      {* HP PA RISC *}
 202 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 203 .#define bfd_mach_d10v          1
 204 .#define bfd_mach_d10v_ts2      2
 205 .#define bfd_mach_d10v_ts3      3
 206 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 207 .  bfd_arch_dlx,       {* DLX *}
 208 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 209 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 210 .#define bfd_mach_m6812_default 0
 211 .#define bfd_mach_m6812         1
 212 .#define bfd_mach_m6812s        2
 213 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 214 .#define bfd_mach_z8001         1
 215 .#define bfd_mach_z8002         2
 216 .  bfd_arch_h8500,     {* Renesas H8/500 (formerly Hitachi H8/500) *}
 217 .  bfd_arch_sh,        {* Renesas / SuperH SH (formerly Hitachi SH) *}
 218 .#define bfd_mach_sh            1
 219 .#define bfd_mach_sh2        0x20
 220 .#define bfd_mach_sh_dsp     0x2d
 221 .#define bfd_mach_sh2e       0x2e
 222 .#define bfd_mach_sh3        0x30
 223 .#define bfd_mach_sh3_dsp    0x3d
 224 .#define bfd_mach_sh3e       0x3e
 225 .#define bfd_mach_sh4        0x40
 226 .#define bfd_mach_sh5        0x50
 227 .  bfd_arch_alpha,     {* Dec Alpha *}
 228 .#define bfd_mach_alpha_ev4  0x10
 229 .#define bfd_mach_alpha_ev5  0x20
 230 .#define bfd_mach_alpha_ev6  0x30
 231 .  bfd_arch_arm,       {* Advanced Risc Machines ARM.  *}
 232 .#define bfd_mach_arm_unknown   0
 233 .#define bfd_mach_arm_2         1
 234 .#define bfd_mach_arm_2a        2
 235 .#define bfd_mach_arm_3         3
 236 .#define bfd_mach_arm_3M        4
 237 .#define bfd_mach_arm_4         5
 238 .#define bfd_mach_arm_4T        6
 239 .#define bfd_mach_arm_5         7
 240 .#define bfd_mach_arm_5T        8
 241 .#define bfd_mach_arm_5TE       9
 242 .#define bfd_mach_arm_XScale    10
 243 .#define bfd_mach_arm_ep9312    11
 244 .#define bfd_mach_arm_iWMMXt    12
 245 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 246 .  bfd_arch_w65,       {* WDC 65816 *}
 247 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 248 .  bfd_arch_tic4x,     {* Texas Instruments TMS320C3X/4X *}
 249 .#define bfd_mach_tic3x         30
 250 .#define bfd_mach_tic4x         40
 251 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 252 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 253 .  bfd_arch_v850,      {* NEC V850 *}
 254 .#define bfd_mach_v850          1
 255 .#define bfd_mach_v850e         'E'
 256 .  bfd_arch_arc,       {* ARC Cores *}
 257 .#define bfd_mach_arc_5         5
 258 .#define bfd_mach_arc_6         6
 259 .#define bfd_mach_arc_7         7
 260 .#define bfd_mach_arc_8         8
 261 .  bfd_arch_m32r,      {* Renesas M32R (formerly Mitsubishi M32R/D) *}
 262 .#define bfd_mach_m32r          1 {* For backwards compatibility.  *}
 263 .#define bfd_mach_m32rx         'x'
 264 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 265 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 266 .#define bfd_mach_mn10300               300
 267 .#define bfd_mach_am33          330
 268 .#define bfd_mach_am33_2        332
 269 .  bfd_arch_fr30,
 270 .#define bfd_mach_fr30          0x46523330
 271 .  bfd_arch_frv,
 272 .#define bfd_mach_frv           1
 273 .#define bfd_mach_frvsimple     2
 274 .#define bfd_mach_fr300         300
 275 .#define bfd_mach_fr400         400
 276 .#define bfd_mach_frvtomcat     499     {* fr500 prototype *}
 277 .#define bfd_mach_fr500         500
 278 .  bfd_arch_mcore,
 279 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 280 .#define bfd_mach_ia64_elf64    64
 281 .#define bfd_mach_ia64_elf32    32
 282 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 283 .#define bfd_mach_ip2022        1
 284 .#define bfd_mach_ip2022ext     2
 285 . bfd_arch_iq2000,     {* Vitesse IQ2000.  *}
 286 .#define bfd_mach_iq2000        1
 287 .#define bfd_mach_iq10          2
 288 .  bfd_arch_pj,
 289 .  bfd_arch_avr,       {* Atmel AVR microcontrollers.  *}
 290 .#define bfd_mach_avr1          1
 291 .#define bfd_mach_avr2          2
 292 .#define bfd_mach_avr3          3
 293 .#define bfd_mach_avr4          4
 294 .#define bfd_mach_avr5          5
 295 .  bfd_arch_cris,      {* Axis CRIS *}
 296 .  bfd_arch_s390,      {* IBM s390 *}
 297 .#define bfd_mach_s390_31       31
 298 .#define bfd_mach_s390_64       64
 299 .  bfd_arch_openrisc,  {* OpenRISC *}
 300 .  bfd_arch_mmix,      {* Donald Knuth's educational processor.  *}
 301 .  bfd_arch_xstormy16,
 302 .#define bfd_mach_xstormy16     1
 303 .  bfd_arch_msp430,    {* Texas Instruments MSP430 architecture.  *}
 304 .#define bfd_mach_msp110         110
 305 .#define bfd_mach_msp11          11
 306 .#define bfd_mach_msp12          12
 307 .#define bfd_mach_msp13          13
 308 .#define bfd_mach_msp14          14
 309 .#define bfd_mach_msp41          41
 310 .#define bfd_mach_msp31          31
 311 .#define bfd_mach_msp32          32
 312 .#define bfd_mach_msp33          33
 313 .#define bfd_mach_msp43          43
 314 .#define bfd_mach_msp44          44
 315 .#define bfd_mach_msp15          15
 316 .#define bfd_mach_msp16          16
 317 .  bfd_arch_xtensa,    {* Tensilica's Xtensa cores.  *}
 318 .#define bfd_mach_xtensa        1
 319 .  bfd_arch_last
 320 .  };
 321 */
 322
 323 /*
 324 SUBSECTION
 325         bfd_arch_info
 326
 327 DESCRIPTION
 328         This structure contains information on architectures for use
 329         within BFD.
 330
 331 .
 332 .typedef struct bfd_arch_info
 333 .{
 334 .  int bits_per_word;
 335 .  int bits_per_address;
 336 .  int bits_per_byte;
 337 .  enum bfd_architecture arch;
 338 .  unsigned long mach;
 339 .  const char *arch_name;
 340 .  const char *printable_name;
 341 .  unsigned int section_align_power;
 342 .  {* TRUE if this is the default machine for the architecture.
 343 .     The default arch should be the first entry for an arch so that
 344 .     all the entries for that arch can be accessed via <<next>>.  *}
 345 .  bfd_boolean the_default;
 346 .  const struct bfd_arch_info * (*compatible)
 347 .    (const struct bfd_arch_info *a, const struct bfd_arch_info *b);
 348 .
 349 .  bfd_boolean (*scan) (const struct bfd_arch_info *, const char *);
 350 .
 351 .  const struct bfd_arch_info *next;
 352 .}
 353 .bfd_arch_info_type;
 354 .
 355 */
 356
 357 extern const bfd_arch_info_type bfd_a29k_arch;
 358 extern const bfd_arch_info_type bfd_alpha_arch;
 359 extern const bfd_arch_info_type bfd_arc_arch;
 360 extern const bfd_arch_info_type bfd_arm_arch;
 361 extern const bfd_arch_info_type bfd_avr_arch;
 362 extern const bfd_arch_info_type bfd_cris_arch;
 363 extern const bfd_arch_info_type bfd_d10v_arch;
 364 extern const bfd_arch_info_type bfd_d30v_arch;
 365 extern const bfd_arch_info_type bfd_dlx_arch;
 366 extern const bfd_arch_info_type bfd_fr30_arch;
 367 extern const bfd_arch_info_type bfd_frv_arch;
 368 extern const bfd_arch_info_type bfd_h8300_arch;
 369 extern const bfd_arch_info_type bfd_h8500_arch;
 370 extern const bfd_arch_info_type bfd_hppa_arch;
 371 extern const bfd_arch_info_type bfd_i370_arch;
 372 extern const bfd_arch_info_type bfd_i386_arch;
 373 extern const bfd_arch_info_type bfd_i860_arch;
 374 extern const bfd_arch_info_type bfd_i960_arch;
 375 extern const bfd_arch_info_type bfd_ia64_arch;
 376 extern const bfd_arch_info_type bfd_ip2k_arch;
 377 extern const bfd_arch_info_type bfd_iq2000_arch;
 378 extern const bfd_arch_info_type bfd_m32r_arch;
 379 extern const bfd_arch_info_type bfd_m68hc11_arch;
 380 extern const bfd_arch_info_type bfd_m68hc12_arch;
 381 extern const bfd_arch_info_type bfd_m68k_arch;
 382 extern const bfd_arch_info_type bfd_m88k_arch;
 383 extern const bfd_arch_info_type bfd_mcore_arch;
 384 extern const bfd_arch_info_type bfd_mips_arch;
 385 extern const bfd_arch_info_type bfd_mmix_arch;
 386 extern const bfd_arch_info_type bfd_mn10200_arch;
 387 extern const bfd_arch_info_type bfd_mn10300_arch;
 388 extern const bfd_arch_info_type bfd_msp430_arch;
 389 extern const bfd_arch_info_type bfd_ns32k_arch;
 390 extern const bfd_arch_info_type bfd_openrisc_arch;
 391 extern const bfd_arch_info_type bfd_or32_arch;
 392 extern const bfd_arch_info_type bfd_pdp11_arch;
 393 extern const bfd_arch_info_type bfd_pj_arch;
 394 extern const bfd_arch_info_type bfd_powerpc_archs[];
 395 #define bfd_powerpc_arch bfd_powerpc_archs[0]
 396 extern const bfd_arch_info_type bfd_rs6000_arch;
 397 extern const bfd_arch_info_type bfd_s390_arch;
 398 extern const bfd_arch_info_type bfd_sh_arch;
 399 extern const bfd_arch_info_type bfd_sparc_arch;
 400 extern const bfd_arch_info_type bfd_tic30_arch;
 401 extern const bfd_arch_info_type bfd_tic4x_arch;
 402 extern const bfd_arch_info_type bfd_tic54x_arch;
 403 extern const bfd_arch_info_type bfd_tic80_arch;
 404 extern const bfd_arch_info_type bfd_v850_arch;
 405 extern const bfd_arch_info_type bfd_vax_arch;
 406 extern const bfd_arch_info_type bfd_we32k_arch;
 407 extern const bfd_arch_info_type bfd_w65_arch;
 408 extern const bfd_arch_info_type bfd_xstormy16_arch;
 409 extern const bfd_arch_info_type bfd_xtensa_arch;
 410 extern const bfd_arch_info_type bfd_z8k_arch;
 411
 412 static const bfd_arch_info_type * const bfd_archures_list[] =
 413   {
 414 #ifdef SELECT_ARCHITECTURES
 415     SELECT_ARCHITECTURES,
 416 #else
 417     &bfd_a29k_arch,
 418     &bfd_alpha_arch,
 419     &bfd_arc_arch,
 420     &bfd_arm_arch,
 421     &bfd_avr_arch,
 422     &bfd_cris_arch,
 423     &bfd_d10v_arch,
 424     &bfd_d30v_arch,
 425     &bfd_dlx_arch,
 426     &bfd_fr30_arch,
 427     &bfd_frv_arch,
 428     &bfd_h8300_arch,
 429     &bfd_h8500_arch,
 430     &bfd_hppa_arch,
 431     &bfd_i370_arch,
 432     &bfd_i386_arch,
 433     &bfd_i860_arch,
 434     &bfd_i960_arch,
 435     &bfd_ia64_arch,
 436     &bfd_ip2k_arch,
 437     &bfd_iq2000_arch,
 438     &bfd_m32r_arch,
 439     &bfd_m68hc11_arch,
 440     &bfd_m68hc12_arch,
 441     &bfd_m68k_arch,
 442     &bfd_m88k_arch,
 443     &bfd_mcore_arch,
 444     &bfd_mips_arch,
 445     &bfd_mmix_arch,
 446     &bfd_mn10200_arch,
 447     &bfd_mn10300_arch,
 448     &bfd_msp430_arch,
 449     &bfd_ns32k_arch,
 450     &bfd_openrisc_arch,
 451     &bfd_or32_arch,
 452     &bfd_pdp11_arch,
 453     &bfd_powerpc_arch,
 454     &bfd_rs6000_arch,
 455     &bfd_s390_arch,
 456     &bfd_sh_arch,
 457     &bfd_sparc_arch,
 458     &bfd_tic30_arch,
 459     &bfd_tic4x_arch,
 460     &bfd_tic54x_arch,
 461     &bfd_tic80_arch,
 462     &bfd_v850_arch,
 463     &bfd_vax_arch,
 464     &bfd_w65_arch,
 465     &bfd_we32k_arch,
 466     &bfd_xstormy16_arch,
 467     &bfd_xtensa_arch,
 468     &bfd_z8k_arch,
 469 #endif
 470   0
 471 };
 472
 473 /*
 474 FUNCTION
 475         bfd_printable_name
 476
 477 SYNOPSIS
 478         const char *bfd_printable_name (bfd *abfd);
 479
 480 DESCRIPTION
 481         Return a printable string representing the architecture and machine
 482         from the pointer to the architecture info structure.
 483
 484 */
 485
 486 const char *
 487 bfd_printable_name (bfd *abfd)
 488 {
 489   return abfd->arch_info->printable_name;
 490 }
 491
 492 /*
 493 FUNCTION
 494         bfd_scan_arch
 495
 496 SYNOPSIS
 497         const bfd_arch_info_type *bfd_scan_arch (const char *string);
 498
 499 DESCRIPTION
 500         Figure out if BFD supports any cpu which could be described with
 501         the name @var{string}.  Return a pointer to an <<arch_info>>
 502         structure if a machine is found, otherwise NULL.
 503 */
 504
 505 const bfd_arch_info_type *
 506 bfd_scan_arch (const char *string)
 507 {
 508   const bfd_arch_info_type * const *app, *ap;
 509
 510   /* Look through all the installed architectures.  */
 511   for (app = bfd_archures_list; *app != NULL; app++)
 512     {
 513       for (ap = *app; ap != NULL; ap = ap->next)
 514         {
 515           if (ap->scan (ap, string))
 516             return ap;
 517         }
 518     }
 519
 520   return NULL;
 521 }
 522
 523 /*
 524 FUNCTION
 525         bfd_arch_list
 526
 527 SYNOPSIS
 528         const char **bfd_arch_list (void);
 529
 530 DESCRIPTION
 531         Return a freshly malloced NULL-terminated vector of the names
 532         of all the valid BFD architectures.  Do not modify the names.
 533 */
 534
 535 const char **
 536 bfd_arch_list (void)
 537 {
 538   int vec_length = 0;
 539   const char **name_ptr;
 540   const char **name_list;
 541   const bfd_arch_info_type * const *app;
 542   bfd_size_type amt;
 543
 544   /* Determine the number of architectures.  */
 545   vec_length = 0;
 546   for (app = bfd_archures_list; *app != NULL; app++)
 547     {
 548       const bfd_arch_info_type *ap;
 549       for (ap = *app; ap != NULL; ap = ap->next)
 550         {
 551           vec_length++;
 552         }
 553     }
 554
 555   amt = (vec_length + 1) * sizeof (char **);
 556   name_list = bfd_malloc (amt);
 557   if (name_list == NULL)
 558     return NULL;
 559
 560   /* Point the list at each of the names.  */
 561   name_ptr = name_list;
 562   for (app = bfd_archures_list; *app != NULL; app++)
 563     {
 564       const bfd_arch_info_type *ap;
 565       for (ap = *app; ap != NULL; ap = ap->next)
 566         {
 567           *name_ptr = ap->printable_name;
 568           name_ptr++;
 569         }
 570     }
 571   *name_ptr = NULL;
 572
 573   return name_list;
 574 }
 575
 576 /*
 577 FUNCTION
 578         bfd_arch_get_compatible
 579
 580 SYNOPSIS
 581         const bfd_arch_info_type *bfd_arch_get_compatible
 582           (const bfd *abfd, const bfd *bbfd, bfd_boolean accept_unknowns);
 583
 584 DESCRIPTION
 585         Determine whether two BFDs' architectures and machine types
 586         are compatible.  Calculates the lowest common denominator
 587         between the two architectures and machine types implied by
 588         the BFDs and returns a pointer to an <<arch_info>> structure
 589         describing the compatible machine.
 590 */
 591
 592 const bfd_arch_info_type *
 593 bfd_arch_get_compatible (const bfd *abfd,
 594                          const bfd *bbfd,
 595                          bfd_boolean accept_unknowns)
 596 {
 597   const bfd * ubfd = NULL;
 598
 599   /* Look for an unknown architecture.  */
 600   if (((ubfd = abfd) && ubfd->arch_info->arch == bfd_arch_unknown)
 601       || ((ubfd = bbfd) && ubfd->arch_info->arch == bfd_arch_unknown))
 602     {
 603       /* We can allow an unknown architecture if accept_unknowns
 604          is true, or if the target is the "binary" format, which
 605          has an unknown architecture.  Since the binary format can
 606          only be set by explicit request from the user, it is safe
 607          to assume that they know what they are doing.  */
 608       if (accept_unknowns
 609           || strcmp (bfd_get_target (ubfd), "binary") == 0)
 610         return ubfd->arch_info;
 611       return NULL;
 612     }
 613
 614   /* Otherwise architecture-specific code has to decide.  */
 615   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 616 }
 617
 618 /*
 619 INTERNAL_DEFINITION
 620         bfd_default_arch_struct
 621
 622 DESCRIPTION
 623         The <<bfd_default_arch_struct>> is an item of
 624         <<bfd_arch_info_type>> which has been initialized to a fairly
 625         generic state.  A BFD starts life by pointing to this
 626         structure, until the correct back end has determined the real
 627         architecture of the file.
 628
 629 .extern const bfd_arch_info_type bfd_default_arch_struct;
 630 */
 631
 632 const bfd_arch_info_type bfd_default_arch_struct = {
 633   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, TRUE,
 634   bfd_default_compatible,
 635   bfd_default_scan,
 636   0,
 637 };
 638
 639 /*
 640 FUNCTION
 641         bfd_set_arch_info
 642
 643 SYNOPSIS
 644         void bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg);
 645
 646 DESCRIPTION
 647         Set the architecture info of @var{abfd} to @var{arg}.
 648 */
 649
 650 void
 651 bfd_set_arch_info (bfd *abfd, const bfd_arch_info_type *arg)
 652 {
 653   abfd->arch_info = arg;
 654 }
 655
 656 /*
 657 INTERNAL_FUNCTION
 658         bfd_default_set_arch_mach
 659
 660 SYNOPSIS
 661         bfd_boolean bfd_default_set_arch_mach
 662           (bfd *abfd, enum bfd_architecture arch, unsigned long mach);
 663
 664 DESCRIPTION
 665         Set the architecture and machine type in BFD @var{abfd}
 666         to @var{arch} and @var{mach}.  Find the correct
 667         pointer to a structure and insert it into the <<arch_info>>
 668         pointer.
 669 */
 670
 671 bfd_boolean
 672 bfd_default_set_arch_mach (bfd *abfd,
 673                            enum bfd_architecture arch,
 674                            unsigned long mach)
 675 {
 676   abfd->arch_info = bfd_lookup_arch (arch, mach);
 677   if (abfd->arch_info != NULL)
 678     return TRUE;
 679
 680   abfd->arch_info = &bfd_default_arch_struct;
 681   bfd_set_error (bfd_error_bad_value);
 682   return FALSE;
 683 }
 684
 685 /*
 686 FUNCTION
 687         bfd_get_arch
 688
 689 SYNOPSIS
 690         enum bfd_architecture bfd_get_arch (bfd *abfd);
 691
 692 DESCRIPTION
 693         Return the enumerated type which describes the BFD @var{abfd}'s
 694         architecture.
 695 */
 696
 697 enum bfd_architecture
 698 bfd_get_arch (bfd *abfd)
 699 {
 700   return abfd->arch_info->arch;
 701 }
 702
 703 /*
 704 FUNCTION
 705         bfd_get_mach
 706
 707 SYNOPSIS
 708         unsigned long bfd_get_mach (bfd *abfd);
 709
 710 DESCRIPTION
 711         Return the long type which describes the BFD @var{abfd}'s
 712         machine.
 713 */
 714
 715 unsigned long
 716 bfd_get_mach (bfd *abfd)
 717 {
 718   return abfd->arch_info->mach;
 719 }
 720
 721 /*
 722 FUNCTION
 723         bfd_arch_bits_per_byte
 724
 725 SYNOPSIS
 726         unsigned int bfd_arch_bits_per_byte (bfd *abfd);
 727
 728 DESCRIPTION
 729         Return the number of bits in one of the BFD @var{abfd}'s
 730         architecture's bytes.
 731 */
 732
 733 unsigned int
 734 bfd_arch_bits_per_byte (bfd *abfd)
 735 {
 736   return abfd->arch_info->bits_per_byte;
 737 }
 738
 739 /*
 740 FUNCTION
 741         bfd_arch_bits_per_address
 742
 743 SYNOPSIS
 744         unsigned int bfd_arch_bits_per_address (bfd *abfd);
 745
 746 DESCRIPTION
 747         Return the number of bits in one of the BFD @var{abfd}'s
 748         architecture's addresses.
 749 */
 750
 751 unsigned int
 752 bfd_arch_bits_per_address (bfd *abfd)
 753 {
 754   return abfd->arch_info->bits_per_address;
 755 }
 756
 757 /*
 758 INTERNAL_FUNCTION
 759         bfd_default_compatible
 760
 761 SYNOPSIS
 762         const bfd_arch_info_type *bfd_default_compatible
 763           (const bfd_arch_info_type *a, const bfd_arch_info_type *b);
 764
 765 DESCRIPTION
 766         The default function for testing for compatibility.
 767 */
 768
 769 const bfd_arch_info_type *
 770 bfd_default_compatible (const bfd_arch_info_type *a,
 771                         const bfd_arch_info_type *b)
 772 {
 773   if (a->arch != b->arch)
 774     return NULL;
 775
 776   if (a->bits_per_word != b->bits_per_word)
 777     return NULL;
 778
 779   if (a->mach > b->mach)
 780     return a;
 781
 782   if (b->mach > a->mach)
 783     return b;
 784
 785   return a;
 786 }
 787
 788 /*
 789 INTERNAL_FUNCTION
 790         bfd_default_scan
 791
 792 SYNOPSIS
 793         bfd_boolean bfd_default_scan
 794           (const struct bfd_arch_info *info, const char *string);
 795
 796 DESCRIPTION
 797         The default function for working out whether this is an
 798         architecture hit and a machine hit.
 799 */
 800
 801 bfd_boolean
 802 bfd_default_scan (const bfd_arch_info_type *info, const char *string)
 803 {
 804   const char *ptr_src;
 805   const char *ptr_tst;
 806   unsigned long number;
 807   enum bfd_architecture arch;
 808   const char *printable_name_colon;
 809
 810   /* Exact match of the architecture name (ARCH_NAME) and also the
 811      default architecture?  */
 812   if (strcasecmp (string, info->arch_name) == 0
 813       && info->the_default)
 814     return TRUE;
 815
 816   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 817   if (strcasecmp (string, info->printable_name) == 0)
 818     return TRUE;
 819
 820   /* Given that printable_name contains no colon, attempt to match:
 821      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 822   printable_name_colon = strchr (info->printable_name, ':');
 823   if (printable_name_colon == NULL)
 824     {
 825       size_t strlen_arch_name = strlen (info->arch_name);
 826       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 827         {
 828           if (string[strlen_arch_name] == ':')
 829             {
 830               if (strcasecmp (string + strlen_arch_name + 1,
 831                               info->printable_name) == 0)
 832                 return TRUE;
 833             }
 834           else
 835             {
 836               if (strcasecmp (string + strlen_arch_name,
 837                               info->printable_name) == 0)
 838                 return TRUE;
 839             }
 840         }
 841     }
 842
 843   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 844      Attempt to match: <arch> <mach>?  */
 845   if (printable_name_colon != NULL)
 846     {
 847       size_t colon_index = printable_name_colon - info->printable_name;
 848       if (strncasecmp (string, info->printable_name, colon_index) == 0
 849           && strcasecmp (string + colon_index,
 850                          info->printable_name + colon_index + 1) == 0)
 851         return TRUE;
 852     }
 853
 854   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 855      attempt to match just <mach>, it could be ambigious.  This test
 856      is left until later.  */
 857
 858   /* NOTE: The below is retained for compatibility only.  Please do
 859      not add to this code.  */
 860
 861   /* See how much of the supplied string matches with the
 862      architecture, eg the string m68k:68020 would match the 68k entry
 863      up to the :, then we get left with the machine number.  */
 864
 865   for (ptr_src = string, ptr_tst = info->arch_name;
 866        *ptr_src && *ptr_tst;
 867        ptr_src++, ptr_tst++)
 868     {
 869       if (*ptr_src != *ptr_tst)
 870         break;
 871     }
 872
 873   /* Chewed up as much of the architecture as will match, skip any
 874      colons.  */
 875   if (*ptr_src == ':')
 876     ptr_src++;
 877
 878   if (*ptr_src == 0)
 879     {
 880       /* Nothing more, then only keep this one if it is the default
 881          machine for this architecture.  */
 882       return info->the_default;
 883     }
 884
 885   number = 0;
 886   while (ISDIGIT (*ptr_src))
 887     {
 888       number = number * 10 + *ptr_src - '0';
 889       ptr_src++;
 890     }
 891
 892   /* NOTE: The below is retained for compatibility only.
 893      PLEASE DO NOT ADD TO THIS CODE.  */
 894
 895   switch (number)
 896     {
 897       /* FIXME: These are needed to parse IEEE objects.  */
 898       /* The following seven case's are here only for compatibility with
 899          older binutils (at least IEEE objects from binutils 2.9.1 require
 900          them).  */
 901     case bfd_mach_m68000:
 902     case bfd_mach_m68010:
 903     case bfd_mach_m68020:
 904     case bfd_mach_m68030:
 905     case bfd_mach_m68040:
 906     case bfd_mach_m68060:
 907     case bfd_mach_cpu32:
 908       arch = bfd_arch_m68k;
 909       break;
 910     case 68000:
 911       arch = bfd_arch_m68k;
 912       number = bfd_mach_m68000;
 913       break;
 914     case 68010:
 915       arch = bfd_arch_m68k;
 916       number = bfd_mach_m68010;
 917       break;
 918     case 68020:
 919       arch = bfd_arch_m68k;
 920       number = bfd_mach_m68020;
 921       break;
 922     case 68030:
 923       arch = bfd_arch_m68k;
 924       number = bfd_mach_m68030;
 925       break;
 926     case 68040:
 927       arch = bfd_arch_m68k;
 928       number = bfd_mach_m68040;
 929       break;
 930     case 68060:
 931       arch = bfd_arch_m68k;
 932       number = bfd_mach_m68060;
 933       break;
 934     case 68332:
 935       arch = bfd_arch_m68k;
 936       number = bfd_mach_cpu32;
 937       break;
 938     case 5200:
 939       arch = bfd_arch_m68k;
 940       number = bfd_mach_mcf5200;
 941       break;
 942     case 5206:
 943       arch = bfd_arch_m68k;
 944       number = bfd_mach_mcf5206e;
 945       break;
 946     case 5307:
 947       arch = bfd_arch_m68k;
 948       number = bfd_mach_mcf5307;
 949       break;
 950     case 5407:
 951       arch = bfd_arch_m68k;
 952       number = bfd_mach_mcf5407;
 953       break;
 954
 955     case 32000:
 956       arch = bfd_arch_we32k;
 957       break;
 958
 959     case 3000:
 960       arch = bfd_arch_mips;
 961       number = bfd_mach_mips3000;
 962       break;
 963
 964     case 4000:
 965       arch = bfd_arch_mips;
 966       number = bfd_mach_mips4000;
 967       break;
 968
 969     case 6000:
 970       arch = bfd_arch_rs6000;
 971       break;
 972
 973     case 7410:
 974       arch = bfd_arch_sh;
 975       number = bfd_mach_sh_dsp;
 976       break;
 977
 978     case 7708:
 979       arch = bfd_arch_sh;
 980       number = bfd_mach_sh3;
 981       break;
 982
 983     case 7729:
 984       arch = bfd_arch_sh;
 985       number = bfd_mach_sh3_dsp;
 986       break;
 987
 988     case 7750:
 989       arch = bfd_arch_sh;
 990       number = bfd_mach_sh4;
 991       break;
 992
 993     default:
 994       return FALSE;
 995     }
 996
 997   if (arch != info->arch)
 998     return FALSE;
 999
1000   if (number != info->mach)
1001     return FALSE;
1002
1003   return TRUE;
1004 }
1005
1006 /*
1007 FUNCTION
1008         bfd_get_arch_info
1009
1010 SYNOPSIS
1011         const bfd_arch_info_type *bfd_get_arch_info (bfd *abfd);
1012
1013 DESCRIPTION
1014         Return the architecture info struct in @var{abfd}.
1015 */
1016
1017 const bfd_arch_info_type *
1018 bfd_get_arch_info (bfd *abfd)
1019 {
1020   return abfd->arch_info;
1021 }
1022
1023 /*
1024 FUNCTION
1025         bfd_lookup_arch
1026
1027 SYNOPSIS
1028         const bfd_arch_info_type *bfd_lookup_arch
1029           (enum bfd_architecture arch, unsigned long machine);
1030
1031 DESCRIPTION
1032         Look for the architecure info structure which matches the
1033         arguments @var{arch} and @var{machine}. A machine of 0 matches the
1034         machine/architecture structure which marks itself as the
1035         default.
1036 */
1037
1038 const bfd_arch_info_type *
1039 bfd_lookup_arch (enum bfd_architecture arch, unsigned long machine)
1040 {
1041   const bfd_arch_info_type * const *app, *ap;
1042
1043   for (app = bfd_archures_list; *app != NULL; app++)
1044     {
1045       for (ap = *app; ap != NULL; ap = ap->next)
1046         {
1047           if (ap->arch == arch
1048               && (ap->mach == machine
1049                   || (machine == 0 && ap->the_default)))
1050             return ap;
1051         }
1052     }
1053
1054   return NULL;
1055 }
1056
1057 /*
1058 FUNCTION
1059         bfd_printable_arch_mach
1060
1061 SYNOPSIS
1062         const char *bfd_printable_arch_mach
1063           (enum bfd_architecture arch, unsigned long machine);
1064
1065 DESCRIPTION
1066         Return a printable string representing the architecture and
1067         machine type.
1068
1069         This routine is depreciated.
1070 */
1071
1072 const char *
1073 bfd_printable_arch_mach (enum bfd_architecture arch, unsigned long machine)
1074 {
1075   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1076
1077   if (ap)
1078     return ap->printable_name;
1079   return "UNKNOWN!";
1080 }
1081
1082 /*
1083 FUNCTION
1084         bfd_octets_per_byte
1085
1086 SYNOPSIS
1087         unsigned int bfd_octets_per_byte (bfd *abfd);
1088
1089 DESCRIPTION
1090         Return the number of octets (8-bit quantities) per target byte
1091         (minimum addressable unit).  In most cases, this will be one, but some
1092         DSP targets have 16, 32, or even 48 bits per byte.
1093 */
1094
1095 unsigned int
1096 bfd_octets_per_byte (bfd *abfd)
1097 {
1098   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1099                                         bfd_get_mach (abfd));
1100 }
1101
1102 /*
1103 FUNCTION
1104         bfd_arch_mach_octets_per_byte
1105
1106 SYNOPSIS
1107         unsigned int bfd_arch_mach_octets_per_byte
1108           (enum bfd_architecture arch, unsigned long machine);
1109
1110 DESCRIPTION
1111         See bfd_octets_per_byte.
1112
1113         This routine is provided for those cases where a bfd * is not
1114         available
1115 */
1116
1117 unsigned int
1118 bfd_arch_mach_octets_per_byte (enum bfd_architecture arch,
1119                                unsigned long mach)
1120 {
1121   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1122
1123   if (ap)
1124     return ap->bits_per_byte / 8;
1125   return 1;
1126 }