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 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 186 .#define bfd_mach_rs6k          0
 187 .#define bfd_mach_rs6k_rs1      6001
 188 .#define bfd_mach_rs6k_rsc      6003
 189 .#define bfd_mach_rs6k_rs2      6002
 190 .  bfd_arch_hppa,      {* HP PA RISC *}
 191 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 192 .#define bfd_mach_d10v          0
 193 .#define bfd_mach_d10v_ts2      2
 194 .#define bfd_mach_d10v_ts3      3
 195 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 196 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 197 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 198 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 199 .#define bfd_mach_z8001         1
 200 .#define bfd_mach_z8002         2
 201 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 202 .  bfd_arch_sh,        {* Hitachi SH *}
 203 .#define bfd_mach_sh            0
 204 .#define bfd_mach_sh2        0x20
 205 .#define bfd_mach_sh_dsp     0x2d
 206 .#define bfd_mach_sh3        0x30
 207 .#define bfd_mach_sh3_dsp    0x3d
 208 .#define bfd_mach_sh3e       0x3e
 209 .#define bfd_mach_sh4        0x40
 210 .#define bfd_mach_sh5        0x50
 211 .  bfd_arch_alpha,     {* Dec Alpha *}
 212 .#define bfd_mach_alpha_ev4  0x10
 213 .#define bfd_mach_alpha_ev5  0x20
 214 .#define bfd_mach_alpha_ev6  0x30
 215 .  bfd_arch_arm,       {* Advanced Risc Machines ARM.  *}
 216 .#define bfd_mach_arm_2         1
 217 .#define bfd_mach_arm_2a        2
 218 .#define bfd_mach_arm_3         3
 219 .#define bfd_mach_arm_3M        4
 220 .#define bfd_mach_arm_4         5
 221 .#define bfd_mach_arm_4T        6
 222 .#define bfd_mach_arm_5         7
 223 .#define bfd_mach_arm_5T        8
 224 .#define bfd_mach_arm_5TE       9
 225 .#define bfd_mach_arm_XScale    10
 226 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 227 .  bfd_arch_w65,       {* WDC 65816 *}
 228 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 229 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 230 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 231 .  bfd_arch_v850,      {* NEC V850 *}
 232 .#define bfd_mach_v850          0
 233 .#define bfd_mach_v850e         'E'
 234 .#define bfd_mach_v850ea        'A'
 235 .  bfd_arch_arc,       {* ARC Cores *}
 236 .#define bfd_mach_arc_5         0
 237 .#define bfd_mach_arc_6         1
 238 .#define bfd_mach_arc_7         2
 239 .#define bfd_mach_arc_8         3
 240 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 241 .#define bfd_mach_m32r          0 {* For backwards compatibility.  *}
 242 .#define bfd_mach_m32rx         'x'
 243 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 244 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 245 .#define bfd_mach_mn10300               300
 246 .#define bfd_mach_am33          330
 247 .  bfd_arch_fr30,
 248 .#define bfd_mach_fr30          0x46523330
 249 .  bfd_arch_mcore,
 250 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 251 .#define bfd_mach_ia64_elf64    0
 252 .#define bfd_mach_ia64_elf32    1
 253 .  bfd_arch_pj,
 254 .  bfd_arch_avr,       {* Atmel AVR microcontrollers.  *}
 255 .#define bfd_mach_avr1          1
 256 .#define bfd_mach_avr2          2
 257 .#define bfd_mach_avr3          3
 258 .#define bfd_mach_avr4          4
 259 .#define bfd_mach_avr5          5
 260 .  bfd_arch_cris,      {* Axis CRIS *}
 261 .  bfd_arch_s390,      {* IBM s390 *}
 262 .#define bfd_mach_s390_31       0
 263 .#define bfd_mach_s390_64       1
 264 .  bfd_arch_openrisc,  {* OpenRISC *}
 265 .  bfd_arch_mmix,      {* Donald Knuth's educational processor.  *}
 266 .  bfd_arch_xstormy16,
 267 .#define bfd_mach_xstormy16     0
 268 .  bfd_arch_last
 269 .  };
 270 */
 271
 272 /*
 273 SUBSECTION
 274         bfd_arch_info
 275
 276 DESCRIPTION
 277         This structure contains information on architectures for use
 278         within BFD.
 279
 280 .
 281 .typedef struct bfd_arch_info
 282 .{
 283 .  int bits_per_word;
 284 .  int bits_per_address;
 285 .  int bits_per_byte;
 286 .  enum bfd_architecture arch;
 287 .  unsigned long mach;
 288 .  const char *arch_name;
 289 .  const char *printable_name;
 290 .  unsigned int section_align_power;
 291 .  {* True if this is the default machine for the architecture.
 292 .     The default arch should be the first entry for an arch so that
 293 .     all the entries for that arch can be accessed via <<next>>.  *}
 294 .  boolean the_default;
 295 .  const struct bfd_arch_info * (*compatible)
 296 .       PARAMS ((const struct bfd_arch_info *a,
 297 .                const struct bfd_arch_info *b));
 298 .
 299 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 300 .
 301 .  const struct bfd_arch_info *next;
 302 .}
 303 .bfd_arch_info_type;
 304 .
 305 */
 306
 307 extern const bfd_arch_info_type bfd_a29k_arch;
 308 extern const bfd_arch_info_type bfd_alpha_arch;
 309 extern const bfd_arch_info_type bfd_arc_arch;
 310 extern const bfd_arch_info_type bfd_arm_arch;
 311 extern const bfd_arch_info_type bfd_avr_arch;
 312 extern const bfd_arch_info_type bfd_cris_arch;
 313 extern const bfd_arch_info_type bfd_d10v_arch;
 314 extern const bfd_arch_info_type bfd_d30v_arch;
 315 extern const bfd_arch_info_type bfd_fr30_arch;
 316 extern const bfd_arch_info_type bfd_h8300_arch;
 317 extern const bfd_arch_info_type bfd_h8500_arch;
 318 extern const bfd_arch_info_type bfd_hppa_arch;
 319 extern const bfd_arch_info_type bfd_i370_arch;
 320 extern const bfd_arch_info_type bfd_i386_arch;
 321 extern const bfd_arch_info_type bfd_i860_arch;
 322 extern const bfd_arch_info_type bfd_i960_arch;
 323 extern const bfd_arch_info_type bfd_ia64_arch;
 324 extern const bfd_arch_info_type bfd_m32r_arch;
 325 extern const bfd_arch_info_type bfd_m68hc11_arch;
 326 extern const bfd_arch_info_type bfd_m68hc12_arch;
 327 extern const bfd_arch_info_type bfd_m68k_arch;
 328 extern const bfd_arch_info_type bfd_m88k_arch;
 329 extern const bfd_arch_info_type bfd_mcore_arch;
 330 extern const bfd_arch_info_type bfd_mips_arch;
 331 extern const bfd_arch_info_type bfd_mmix_arch;
 332 extern const bfd_arch_info_type bfd_mn10200_arch;
 333 extern const bfd_arch_info_type bfd_mn10300_arch;
 334 extern const bfd_arch_info_type bfd_ns32k_arch;
 335 extern const bfd_arch_info_type bfd_openrisc_arch;
 336 extern const bfd_arch_info_type bfd_or32_arch;
 337 extern const bfd_arch_info_type bfd_pdp11_arch;
 338 extern const bfd_arch_info_type bfd_pj_arch;
 339 extern const bfd_arch_info_type bfd_powerpc_archs[];
 340 #define bfd_powerpc_arch bfd_powerpc_archs[0]
 341 extern const bfd_arch_info_type bfd_rs6000_arch;
 342 extern const bfd_arch_info_type bfd_s390_arch;
 343 extern const bfd_arch_info_type bfd_sh_arch;
 344 extern const bfd_arch_info_type bfd_sparc_arch;
 345 extern const bfd_arch_info_type bfd_tic30_arch;
 346 extern const bfd_arch_info_type bfd_tic54x_arch;
 347 extern const bfd_arch_info_type bfd_tic80_arch;
 348 extern const bfd_arch_info_type bfd_v850_arch;
 349 extern const bfd_arch_info_type bfd_vax_arch;
 350 extern const bfd_arch_info_type bfd_we32k_arch;
 351 extern const bfd_arch_info_type bfd_w65_arch;
 352 extern const bfd_arch_info_type bfd_xstormy16_arch;
 353 extern const bfd_arch_info_type bfd_z8k_arch;
 354
 355 static const bfd_arch_info_type * const bfd_archures_list[] =
 356   {
 357 #ifdef SELECT_ARCHITECTURES
 358     SELECT_ARCHITECTURES,
 359 #else
 360     &bfd_a29k_arch,
 361     &bfd_alpha_arch,
 362     &bfd_arc_arch,
 363     &bfd_arm_arch,
 364     &bfd_avr_arch,
 365     &bfd_cris_arch,
 366     &bfd_d10v_arch,
 367     &bfd_d30v_arch,
 368     &bfd_fr30_arch,
 369     &bfd_h8300_arch,
 370     &bfd_h8500_arch,
 371     &bfd_hppa_arch,
 372     &bfd_i370_arch,
 373     &bfd_i386_arch,
 374     &bfd_i860_arch,
 375     &bfd_i960_arch,
 376     &bfd_ia64_arch,
 377     &bfd_m32r_arch,
 378     &bfd_m68hc11_arch,
 379     &bfd_m68hc12_arch,
 380     &bfd_m68k_arch,
 381     &bfd_m88k_arch,
 382     &bfd_mcore_arch,
 383     &bfd_mips_arch,
 384     &bfd_mmix_arch,
 385     &bfd_mn10200_arch,
 386     &bfd_mn10300_arch,
 387     &bfd_ns32k_arch,
 388     &bfd_openrisc_arch,
 389     &bfd_or32_arch,
 390     &bfd_pdp11_arch,
 391     &bfd_powerpc_arch,
 392     &bfd_rs6000_arch,
 393     &bfd_s390_arch,
 394     &bfd_sh_arch,
 395     &bfd_sparc_arch,
 396     &bfd_tic30_arch,
 397     &bfd_tic54x_arch,
 398     &bfd_tic80_arch,
 399     &bfd_v850_arch,
 400     &bfd_vax_arch,
 401     &bfd_w65_arch,
 402     &bfd_we32k_arch,
 403     &bfd_xstormy16_arch,
 404     &bfd_z8k_arch,
 405 #endif
 406   0
 407 };
 408
 409 /*
 410 FUNCTION
 411         bfd_printable_name
 412
 413 SYNOPSIS
 414         const char *bfd_printable_name(bfd *abfd);
 415
 416 DESCRIPTION
 417         Return a printable string representing the architecture and machine
 418         from the pointer to the architecture info structure.
 419
 420 */
 421
 422 const char *
 423 bfd_printable_name (abfd)
 424      bfd *abfd;
 425 {
 426   return abfd->arch_info->printable_name;
 427 }
 428
 429 /*
 430 FUNCTION
 431         bfd_scan_arch
 432
 433 SYNOPSIS
 434         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 435
 436 DESCRIPTION
 437         Figure out if BFD supports any cpu which could be described with
 438         the name @var{string}.  Return a pointer to an <<arch_info>>
 439         structure if a machine is found, otherwise NULL.
 440 */
 441
 442 const bfd_arch_info_type *
 443 bfd_scan_arch (string)
 444      const char *string;
 445 {
 446   const bfd_arch_info_type * const *app, *ap;
 447
 448   /* Look through all the installed architectures.  */
 449   for (app = bfd_archures_list; *app != NULL; app++)
 450     {
 451       for (ap = *app; ap != NULL; ap = ap->next)
 452         {
 453           if (ap->scan (ap, string))
 454             return ap;
 455         }
 456     }
 457
 458   return NULL;
 459 }
 460
 461 /*
 462 FUNCTION
 463         bfd_arch_list
 464
 465 SYNOPSIS
 466         const char **bfd_arch_list(void);
 467
 468 DESCRIPTION
 469         Return a freshly malloced NULL-terminated vector of the names
 470         of all the valid BFD architectures.  Do not modify the names.
 471 */
 472
 473 const char **
 474 bfd_arch_list ()
 475 {
 476   int vec_length = 0;
 477   const char **name_ptr;
 478   const char **name_list;
 479   const bfd_arch_info_type * const *app;
 480   bfd_size_type amt;
 481
 482   /* Determine the number of architectures.  */
 483   vec_length = 0;
 484   for (app = bfd_archures_list; *app != NULL; app++)
 485     {
 486       const bfd_arch_info_type *ap;
 487       for (ap = *app; ap != NULL; ap = ap->next)
 488         {
 489           vec_length++;
 490         }
 491     }
 492
 493   amt = (vec_length + 1) * sizeof (char **);
 494   name_list = (const char **) bfd_malloc (amt);
 495   if (name_list == NULL)
 496     return NULL;
 497
 498   /* Point the list at each of the names.  */
 499   name_ptr = name_list;
 500   for (app = bfd_archures_list; *app != NULL; app++)
 501     {
 502       const bfd_arch_info_type *ap;
 503       for (ap = *app; ap != NULL; ap = ap->next)
 504         {
 505           *name_ptr = ap->printable_name;
 506           name_ptr++;
 507         }
 508     }
 509   *name_ptr = NULL;
 510
 511   return name_list;
 512 }
 513
 514 /*
 515 FUNCTION
 516         bfd_arch_get_compatible
 517
 518 SYNOPSIS
 519         const bfd_arch_info_type *bfd_arch_get_compatible(
 520                 const bfd *abfd,
 521                 const bfd *bbfd);
 522
 523 DESCRIPTION
 524         Determine whether two BFDs'
 525         architectures and machine types are compatible.  Calculates
 526         the lowest common denominator between the two architectures
 527         and machine types implied by the BFDs and returns a pointer to
 528         an <<arch_info>> structure describing the compatible machine.
 529 */
 530
 531 const bfd_arch_info_type *
 532 bfd_arch_get_compatible (abfd, bbfd)
 533      const bfd *abfd;
 534      const bfd *bbfd;
 535 {
 536   /* If either architecture is unknown, then all we can do is assume
 537      the user knows what he's doing.  */
 538   if (abfd->arch_info->arch == bfd_arch_unknown)
 539     return bbfd->arch_info;
 540   if (bbfd->arch_info->arch == bfd_arch_unknown)
 541     return abfd->arch_info;
 542
 543   /* Otherwise architecture-specific code has to decide.  */
 544   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 545 }
 546
 547 /*
 548 INTERNAL_DEFINITION
 549         bfd_default_arch_struct
 550
 551 DESCRIPTION
 552         The <<bfd_default_arch_struct>> is an item of
 553         <<bfd_arch_info_type>> which has been initialized to a fairly
 554         generic state.  A BFD starts life by pointing to this
 555         structure, until the correct back end has determined the real
 556         architecture of the file.
 557
 558 .extern const bfd_arch_info_type bfd_default_arch_struct;
 559 */
 560
 561 const bfd_arch_info_type bfd_default_arch_struct = {
 562   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 563   bfd_default_compatible,
 564   bfd_default_scan,
 565   0,
 566 };
 567
 568 /*
 569 FUNCTION
 570         bfd_set_arch_info
 571
 572 SYNOPSIS
 573         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 574
 575 DESCRIPTION
 576         Set the architecture info of @var{abfd} to @var{arg}.
 577 */
 578
 579 void
 580 bfd_set_arch_info (abfd, arg)
 581      bfd *abfd;
 582      const bfd_arch_info_type *arg;
 583 {
 584   abfd->arch_info = arg;
 585 }
 586
 587 /*
 588 INTERNAL_FUNCTION
 589         bfd_default_set_arch_mach
 590
 591 SYNOPSIS
 592         boolean bfd_default_set_arch_mach(bfd *abfd,
 593                 enum bfd_architecture arch,
 594                 unsigned long mach);
 595
 596 DESCRIPTION
 597         Set the architecture and machine type in BFD @var{abfd}
 598         to @var{arch} and @var{mach}.  Find the correct
 599         pointer to a structure and insert it into the <<arch_info>>
 600         pointer.
 601 */
 602
 603 boolean
 604 bfd_default_set_arch_mach (abfd, arch, mach)
 605      bfd *abfd;
 606      enum bfd_architecture arch;
 607      unsigned long mach;
 608 {
 609   abfd->arch_info = bfd_lookup_arch (arch, mach);
 610   if (abfd->arch_info != NULL)
 611     return true;
 612
 613   abfd->arch_info = &bfd_default_arch_struct;
 614   bfd_set_error (bfd_error_bad_value);
 615   return false;
 616 }
 617
 618 /*
 619 FUNCTION
 620         bfd_get_arch
 621
 622 SYNOPSIS
 623         enum bfd_architecture bfd_get_arch(bfd *abfd);
 624
 625 DESCRIPTION
 626         Return the enumerated type which describes the BFD @var{abfd}'s
 627         architecture.
 628 */
 629
 630 enum bfd_architecture
 631 bfd_get_arch (abfd)
 632      bfd *abfd;
 633 {
 634   return abfd->arch_info->arch;
 635 }
 636
 637 /*
 638 FUNCTION
 639         bfd_get_mach
 640
 641 SYNOPSIS
 642         unsigned long bfd_get_mach(bfd *abfd);
 643
 644 DESCRIPTION
 645         Return the long type which describes the BFD @var{abfd}'s
 646         machine.
 647 */
 648
 649 unsigned long
 650 bfd_get_mach (abfd)
 651      bfd *abfd;
 652 {
 653   return abfd->arch_info->mach;
 654 }
 655
 656 /*
 657 FUNCTION
 658         bfd_arch_bits_per_byte
 659
 660 SYNOPSIS
 661         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 662
 663 DESCRIPTION
 664         Return the number of bits in one of the BFD @var{abfd}'s
 665         architecture's bytes.
 666 */
 667
 668 unsigned int
 669 bfd_arch_bits_per_byte (abfd)
 670      bfd *abfd;
 671 {
 672   return abfd->arch_info->bits_per_byte;
 673 }
 674
 675 /*
 676 FUNCTION
 677         bfd_arch_bits_per_address
 678
 679 SYNOPSIS
 680         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 681
 682 DESCRIPTION
 683         Return the number of bits in one of the BFD @var{abfd}'s
 684         architecture's addresses.
 685 */
 686
 687 unsigned int
 688 bfd_arch_bits_per_address (abfd)
 689      bfd *abfd;
 690 {
 691   return abfd->arch_info->bits_per_address;
 692 }
 693
 694 /*
 695 INTERNAL_FUNCTION
 696         bfd_default_compatible
 697
 698 SYNOPSIS
 699         const bfd_arch_info_type *bfd_default_compatible
 700         (const bfd_arch_info_type *a,
 701         const bfd_arch_info_type *b);
 702
 703 DESCRIPTION
 704         The default function for testing for compatibility.
 705 */
 706
 707 const bfd_arch_info_type *
 708 bfd_default_compatible (a, b)
 709      const bfd_arch_info_type *a;
 710      const bfd_arch_info_type *b;
 711 {
 712   if (a->arch != b->arch)
 713     return NULL;
 714
 715   if (a->bits_per_word != b->bits_per_word)
 716     return NULL;
 717
 718   if (a->mach > b->mach)
 719     return a;
 720
 721   if (b->mach > a->mach)
 722     return b;
 723
 724   return a;
 725 }
 726
 727 /*
 728 INTERNAL_FUNCTION
 729         bfd_default_scan
 730
 731 SYNOPSIS
 732         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 733
 734 DESCRIPTION
 735         The default function for working out whether this is an
 736         architecture hit and a machine hit.
 737 */
 738
 739 boolean
 740 bfd_default_scan (info, string)
 741      const bfd_arch_info_type *info;
 742      const char *string;
 743 {
 744   const char *ptr_src;
 745   const char *ptr_tst;
 746   unsigned long number;
 747   enum bfd_architecture arch;
 748   const char *printable_name_colon;
 749
 750   /* Exact match of the architecture name (ARCH_NAME) and also the
 751      default architecture?  */
 752   if (strcasecmp (string, info->arch_name) == 0
 753       && info->the_default)
 754     return true;
 755
 756   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 757   if (strcasecmp (string, info->printable_name) == 0)
 758     return true;
 759
 760   /* Given that printable_name contains no colon, attempt to match:
 761      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 762   printable_name_colon = strchr (info->printable_name, ':');
 763   if (printable_name_colon == NULL)
 764     {
 765       size_t strlen_arch_name = strlen (info->arch_name);
 766       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 767         {
 768           if (string[strlen_arch_name] == ':')
 769             {
 770               if (strcasecmp (string + strlen_arch_name + 1,
 771                               info->printable_name) == 0)
 772                 return true;
 773             }
 774           else
 775             {
 776               if (strcasecmp (string + strlen_arch_name,
 777                               info->printable_name) == 0)
 778                 return true;
 779             }
 780         }
 781     }
 782
 783   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 784      Attempt to match: <arch> <mach>?  */
 785   if (printable_name_colon != NULL)
 786     {
 787       size_t colon_index = printable_name_colon - info->printable_name;
 788       if (strncasecmp (string, info->printable_name, colon_index) == 0
 789           && strcasecmp (string + colon_index,
 790                          info->printable_name + colon_index + 1) == 0)
 791         return true;
 792     }
 793
 794   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 795      attempt to match just <mach>, it could be ambigious.  This test
 796      is left until later.  */
 797
 798   /* NOTE: The below is retained for compatibility only.  Please do
 799      not add to this code.  */
 800
 801   /* See how much of the supplied string matches with the
 802      architecture, eg the string m68k:68020 would match the 68k entry
 803      up to the :, then we get left with the machine number.  */
 804
 805   for (ptr_src = string, ptr_tst = info->arch_name;
 806        *ptr_src && *ptr_tst;
 807        ptr_src++, ptr_tst++)
 808     {
 809       if (*ptr_src != *ptr_tst)
 810         break;
 811     }
 812
 813   /* Chewed up as much of the architecture as will match, skip any
 814      colons.  */
 815   if (*ptr_src == ':')
 816     ptr_src++;
 817
 818   if (*ptr_src == 0)
 819     {
 820       /* Nothing more, then only keep this one if it is the default
 821          machine for this architecture.  */
 822       return info->the_default;
 823     }
 824
 825   number = 0;
 826   while (ISDIGIT (*ptr_src))
 827     {
 828       number = number * 10 + *ptr_src - '0';
 829       ptr_src++;
 830     }
 831
 832   /* NOTE: The below is retained for compatibility only.
 833      PLEASE DO NOT ADD TO THIS CODE.  */
 834
 835   switch (number)
 836     {
 837       /* FIXME: These are needed to parse IEEE objects.  */
 838       /* The following seven case's are here only for compatibility with
 839          older binutils (at least IEEE objects from binutils 2.9.1 require
 840          them).  */
 841     case bfd_mach_m68000:
 842     case bfd_mach_m68010:
 843     case bfd_mach_m68020:
 844     case bfd_mach_m68030:
 845     case bfd_mach_m68040:
 846     case bfd_mach_m68060:
 847     case bfd_mach_cpu32:
 848       arch = bfd_arch_m68k;
 849       break;
 850     case 68000:
 851       arch = bfd_arch_m68k;
 852       number = bfd_mach_m68000;
 853       break;
 854     case 68010:
 855       arch = bfd_arch_m68k;
 856       number = bfd_mach_m68010;
 857       break;
 858     case 68020:
 859       arch = bfd_arch_m68k;
 860       number = bfd_mach_m68020;
 861       break;
 862     case 68030:
 863       arch = bfd_arch_m68k;
 864       number = bfd_mach_m68030;
 865       break;
 866     case 68040:
 867       arch = bfd_arch_m68k;
 868       number = bfd_mach_m68040;
 869       break;
 870     case 68060:
 871       arch = bfd_arch_m68k;
 872       number = bfd_mach_m68060;
 873       break;
 874     case 68332:
 875       arch = bfd_arch_m68k;
 876       number = bfd_mach_cpu32;
 877       break;
 878     case 5200:
 879       arch = bfd_arch_m68k;
 880       number = bfd_mach_mcf5200;
 881       break;
 882     case 5206:
 883       arch = bfd_arch_m68k;
 884       number = bfd_mach_mcf5206e;
 885       break;
 886     case 5307:
 887       arch = bfd_arch_m68k;
 888       number = bfd_mach_mcf5307;
 889       break;
 890     case 5407:
 891       arch = bfd_arch_m68k;
 892       number = bfd_mach_mcf5407;
 893       break;
 894
 895     case 32000:
 896       arch = bfd_arch_we32k;
 897       break;
 898
 899     case 3000:
 900       arch = bfd_arch_mips;
 901       number = bfd_mach_mips3000;
 902       break;
 903
 904     case 4000:
 905       arch = bfd_arch_mips;
 906       number = bfd_mach_mips4000;
 907       break;
 908
 909     case 6000:
 910       arch = bfd_arch_rs6000;
 911       break;
 912
 913     case 7410:
 914       arch = bfd_arch_sh;
 915       number = bfd_mach_sh_dsp;
 916       break;
 917
 918     case 7708:
 919       arch = bfd_arch_sh;
 920       number = bfd_mach_sh3;
 921       break;
 922
 923     case 7729:
 924       arch = bfd_arch_sh;
 925       number = bfd_mach_sh3_dsp;
 926       break;
 927
 928     case 7750:
 929       arch = bfd_arch_sh;
 930       number = bfd_mach_sh4;
 931       break;
 932
 933     default:
 934       return false;
 935     }
 936
 937   if (arch != info->arch)
 938     return false;
 939
 940   if (number != info->mach)
 941     return false;
 942
 943   return true;
 944 }
 945
 946 /*
 947 FUNCTION
 948         bfd_get_arch_info
 949
 950 SYNOPSIS
 951         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 952
 953 DESCRIPTION
 954         Return the architecture info struct in @var{abfd}.
 955 */
 956
 957 const bfd_arch_info_type *
 958 bfd_get_arch_info (abfd)
 959      bfd *abfd;
 960 {
 961   return abfd->arch_info;
 962 }
 963
 964 /*
 965 FUNCTION
 966         bfd_lookup_arch
 967
 968 SYNOPSIS
 969         const bfd_arch_info_type *bfd_lookup_arch
 970                 (enum bfd_architecture
 971                 arch,
 972                 unsigned long machine);
 973
 974 DESCRIPTION
 975         Look for the architecure info structure which matches the
 976         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 977         machine/architecture structure which marks itself as the
 978         default.
 979 */
 980
 981 const bfd_arch_info_type *
 982 bfd_lookup_arch (arch, machine)
 983      enum bfd_architecture arch;
 984      unsigned long machine;
 985 {
 986   const bfd_arch_info_type * const *app, *ap;
 987
 988   for (app = bfd_archures_list; *app != NULL; app++)
 989     {
 990       for (ap = *app; ap != NULL; ap = ap->next)
 991         {
 992           if (ap->arch == arch
 993               && (ap->mach == machine
 994                   || (machine == 0 && ap->the_default)))
 995             return ap;
 996         }
 997     }
 998
 999   return NULL;
1000 }
1001
1002 /*
1003 FUNCTION
1004         bfd_printable_arch_mach
1005
1006 SYNOPSIS
1007         const char *bfd_printable_arch_mach
1008                 (enum bfd_architecture arch, unsigned long machine);
1009
1010 DESCRIPTION
1011         Return a printable string representing the architecture and
1012         machine type.
1013
1014         This routine is depreciated.
1015 */
1016
1017 const char *
1018 bfd_printable_arch_mach (arch, machine)
1019      enum bfd_architecture arch;
1020      unsigned long machine;
1021 {
1022   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1023
1024   if (ap)
1025     return ap->printable_name;
1026   return "UNKNOWN!";
1027 }
1028
1029 /*
1030 FUNCTION
1031         bfd_octets_per_byte
1032
1033 SYNOPSIS
1034         unsigned int bfd_octets_per_byte(bfd *abfd);
1035
1036 DESCRIPTION
1037         Return the number of octets (8-bit quantities) per target byte
1038         (minimum addressable unit).  In most cases, this will be one, but some
1039         DSP targets have 16, 32, or even 48 bits per byte.
1040 */
1041
1042 unsigned int
1043 bfd_octets_per_byte (abfd)
1044      bfd *abfd;
1045 {
1046   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1047                                         bfd_get_mach (abfd));
1048 }
1049
1050 /*
1051 FUNCTION
1052         bfd_arch_mach_octets_per_byte
1053
1054 SYNOPSIS
1055         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1056                                                    unsigned long machine);
1057
1058 DESCRIPTION
1059         See bfd_octets_per_byte.
1060
1061         This routine is provided for those cases where a bfd * is not
1062         available
1063 */
1064
1065 unsigned int
1066 bfd_arch_mach_octets_per_byte (arch, mach)
1067      enum bfd_architecture arch;
1068      unsigned long mach;
1069 {
1070   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1071
1072   if (ap)
1073     return ap->bits_per_byte / 8;
1074   return 1;
1075 }