opcodes/disassemble.c

   1 /* Select disassembly routine for specified architecture.
   2    Copyright (C) 1994-2017 Free Software Foundation, Inc.
   3
   4    This file is part of the GNU opcodes library.
   5
   6    This library is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #include "sysdep.h"
  22 #include "dis-asm.h"
  23 #include "safe-ctype.h"
  24
  25 #ifdef ARCH_all
  26 #define ARCH_aarch64
  27 #define ARCH_alpha
  28 #define ARCH_arc
  29 #define ARCH_arm
  30 #define ARCH_avr
  31 #define ARCH_bfin
  32 #define ARCH_cr16
  33 #define ARCH_cris
  34 #define ARCH_crx
  35 #define ARCH_d10v
  36 #define ARCH_d30v
  37 #define ARCH_dlx
  38 #define ARCH_epiphany
  39 #define ARCH_fr30
  40 #define ARCH_frv
  41 #define ARCH_ft32
  42 #define ARCH_h8300
  43 #define ARCH_h8500
  44 #define ARCH_hppa
  45 #define ARCH_i370
  46 #define ARCH_i386
  47 #define ARCH_i860
  48 #define ARCH_i960
  49 #define ARCH_ia64
  50 #define ARCH_ip2k
  51 #define ARCH_iq2000
  52 #define ARCH_lm32
  53 #define ARCH_m32c
  54 #define ARCH_m32r
  55 #define ARCH_m68hc11
  56 #define ARCH_m68hc12
  57 #define ARCH_m68k
  58 #define ARCH_m88k
  59 #define ARCH_mcore
  60 #define ARCH_mep
  61 #define ARCH_metag
  62 #define ARCH_microblaze
  63 #define ARCH_mips
  64 #define ARCH_mmix
  65 #define ARCH_mn10200
  66 #define ARCH_mn10300
  67 #define ARCH_moxie
  68 #define ARCH_mt
  69 #define ARCH_msp430
  70 #define ARCH_nds32
  71 #define ARCH_nios2
  72 #define ARCH_ns32k
  73 #define ARCH_or1k
  74 #define ARCH_pdp11
  75 #define ARCH_pj
  76 #define ARCH_powerpc
  77 #define ARCH_pru
  78 #define ARCH_rs6000
  79 #define ARCH_rl78
  80 #define ARCH_rx
  81 #define ARCH_s390
  82 #define ARCH_score
  83 #define ARCH_sh
  84 #define ARCH_sparc
  85 #define ARCH_spu
  86 #define ARCH_tic30
  87 #define ARCH_tic4x
  88 #define ARCH_tic54x
  89 #define ARCH_tic6x
  90 #define ARCH_tic80
  91 #define ARCH_tilegx
  92 #define ARCH_tilepro
  93 #define ARCH_v850
  94 #define ARCH_vax
  95 #define ARCH_visium
  96 #define ARCH_w65
  97 #define ARCH_wasm32
  98 #define ARCH_xstormy16
  99 #define ARCH_xc16x
 100 #define ARCH_xgate
 101 #define ARCH_xtensa
 102 #define ARCH_z80
 103 #define ARCH_z8k
 104 #define INCLUDE_SHMEDIA
 105 #endif
 106
 107 #ifdef ARCH_m32c
 108 #include "m32c-desc.h"
 109 #endif
 110
 111 disassembler_ftype
 112 disassembler (bfd *abfd)
 113 {
 114   enum bfd_architecture a = bfd_get_arch (abfd);
 115   disassembler_ftype disassemble;
 116
 117   switch (a)
 118     {
 119       /* If you add a case to this table, also add it to the
 120          ARCH_all definition right above this function.  */
 121 #ifdef ARCH_aarch64
 122     case bfd_arch_aarch64:
 123       disassemble = print_insn_aarch64;
 124       break;
 125 #endif
 126 #ifdef ARCH_alpha
 127     case bfd_arch_alpha:
 128       disassemble = print_insn_alpha;
 129       break;
 130 #endif
 131 #ifdef ARCH_arc
 132     case bfd_arch_arc:
 133       disassemble = arc_get_disassembler (abfd);
 134       break;
 135 #endif
 136 #ifdef ARCH_arm
 137     case bfd_arch_arm:
 138       if (bfd_big_endian (abfd))
 139         disassemble = print_insn_big_arm;
 140       else
 141         disassemble = print_insn_little_arm;
 142       break;
 143 #endif
 144 #ifdef ARCH_avr
 145     case bfd_arch_avr:
 146       disassemble = print_insn_avr;
 147       break;
 148 #endif
 149 #ifdef ARCH_bfin
 150     case bfd_arch_bfin:
 151       disassemble = print_insn_bfin;
 152       break;
 153 #endif
 154 #ifdef ARCH_cr16
 155     case bfd_arch_cr16:
 156       disassemble = print_insn_cr16;
 157       break;
 158 #endif
 159 #ifdef ARCH_cris
 160     case bfd_arch_cris:
 161       disassemble = cris_get_disassembler (abfd);
 162       break;
 163 #endif
 164 #ifdef ARCH_crx
 165     case bfd_arch_crx:
 166       disassemble = print_insn_crx;
 167       break;
 168 #endif
 169 #ifdef ARCH_d10v
 170     case bfd_arch_d10v:
 171       disassemble = print_insn_d10v;
 172       break;
 173 #endif
 174 #ifdef ARCH_d30v
 175     case bfd_arch_d30v:
 176       disassemble = print_insn_d30v;
 177       break;
 178 #endif
 179 #ifdef ARCH_dlx
 180     case bfd_arch_dlx:
 181       /* As far as I know we only handle big-endian DLX objects.  */
 182       disassemble = print_insn_dlx;
 183       break;
 184 #endif
 185 #ifdef ARCH_h8300
 186     case bfd_arch_h8300:
 187       if (bfd_get_mach (abfd) == bfd_mach_h8300h
 188           || bfd_get_mach (abfd) == bfd_mach_h8300hn)
 189         disassemble = print_insn_h8300h;
 190       else if (bfd_get_mach (abfd) == bfd_mach_h8300s
 191                || bfd_get_mach (abfd) == bfd_mach_h8300sn
 192                || bfd_get_mach (abfd) == bfd_mach_h8300sx
 193                || bfd_get_mach (abfd) == bfd_mach_h8300sxn)
 194         disassemble = print_insn_h8300s;
 195       else
 196         disassemble = print_insn_h8300;
 197       break;
 198 #endif
 199 #ifdef ARCH_h8500
 200     case bfd_arch_h8500:
 201       disassemble = print_insn_h8500;
 202       break;
 203 #endif
 204 #ifdef ARCH_hppa
 205     case bfd_arch_hppa:
 206       disassemble = print_insn_hppa;
 207       break;
 208 #endif
 209 #ifdef ARCH_i370
 210     case bfd_arch_i370:
 211       disassemble = print_insn_i370;
 212       break;
 213 #endif
 214 #ifdef ARCH_i386
 215     case bfd_arch_i386:
 216     case bfd_arch_iamcu:
 217     case bfd_arch_l1om:
 218     case bfd_arch_k1om:
 219       disassemble = print_insn_i386;
 220       break;
 221 #endif
 222 #ifdef ARCH_i860
 223     case bfd_arch_i860:
 224       disassemble = print_insn_i860;
 225       break;
 226 #endif
 227 #ifdef ARCH_i960
 228     case bfd_arch_i960:
 229       disassemble = print_insn_i960;
 230       break;
 231 #endif
 232 #ifdef ARCH_ia64
 233     case bfd_arch_ia64:
 234       disassemble = print_insn_ia64;
 235       break;
 236 #endif
 237 #ifdef ARCH_ip2k
 238     case bfd_arch_ip2k:
 239       disassemble = print_insn_ip2k;
 240       break;
 241 #endif
 242 #ifdef ARCH_epiphany
 243     case bfd_arch_epiphany:
 244       disassemble = print_insn_epiphany;
 245       break;
 246 #endif
 247 #ifdef ARCH_fr30
 248     case bfd_arch_fr30:
 249       disassemble = print_insn_fr30;
 250       break;
 251 #endif
 252 #ifdef ARCH_lm32
 253     case bfd_arch_lm32:
 254       disassemble = print_insn_lm32;
 255       break;
 256 #endif
 257 #ifdef ARCH_m32r
 258     case bfd_arch_m32r:
 259       disassemble = print_insn_m32r;
 260       break;
 261 #endif
 262 #if defined(ARCH_m68hc11) || defined(ARCH_m68hc12) \
 263     || defined(ARCH_9s12x) || defined(ARCH_m9s12xg)
 264     case bfd_arch_m68hc11:
 265       disassemble = print_insn_m68hc11;
 266       break;
 267     case bfd_arch_m68hc12:
 268       disassemble = print_insn_m68hc12;
 269       break;
 270     case bfd_arch_m9s12x:
 271       disassemble = print_insn_m9s12x;
 272       break;
 273     case bfd_arch_m9s12xg:
 274       disassemble = print_insn_m9s12xg;
 275       break;
 276 #endif
 277 #ifdef ARCH_m68k
 278     case bfd_arch_m68k:
 279       disassemble = print_insn_m68k;
 280       break;
 281 #endif
 282 #ifdef ARCH_m88k
 283     case bfd_arch_m88k:
 284       disassemble = print_insn_m88k;
 285       break;
 286 #endif
 287 #ifdef ARCH_mt
 288     case bfd_arch_mt:
 289       disassemble = print_insn_mt;
 290       break;
 291 #endif
 292 #ifdef ARCH_microblaze
 293     case bfd_arch_microblaze:
 294       disassemble = print_insn_microblaze;
 295       break;
 296 #endif
 297 #ifdef ARCH_msp430
 298     case bfd_arch_msp430:
 299       disassemble = print_insn_msp430;
 300       break;
 301 #endif
 302 #ifdef ARCH_nds32
 303     case bfd_arch_nds32:
 304       disassemble = print_insn_nds32;
 305       break;
 306 #endif
 307 #ifdef ARCH_ns32k
 308     case bfd_arch_ns32k:
 309       disassemble = print_insn_ns32k;
 310       break;
 311 #endif
 312 #ifdef ARCH_mcore
 313     case bfd_arch_mcore:
 314       disassemble = print_insn_mcore;
 315       break;
 316 #endif
 317 #ifdef ARCH_mep
 318     case bfd_arch_mep:
 319       disassemble = print_insn_mep;
 320       break;
 321 #endif
 322 #ifdef ARCH_metag
 323     case bfd_arch_metag:
 324       disassemble = print_insn_metag;
 325       break;
 326 #endif
 327 #ifdef ARCH_mips
 328     case bfd_arch_mips:
 329       if (bfd_big_endian (abfd))
 330         disassemble = print_insn_big_mips;
 331       else
 332         disassemble = print_insn_little_mips;
 333       break;
 334 #endif
 335 #ifdef ARCH_mmix
 336     case bfd_arch_mmix:
 337       disassemble = print_insn_mmix;
 338       break;
 339 #endif
 340 #ifdef ARCH_mn10200
 341     case bfd_arch_mn10200:
 342       disassemble = print_insn_mn10200;
 343       break;
 344 #endif
 345 #ifdef ARCH_mn10300
 346     case bfd_arch_mn10300:
 347       disassemble = print_insn_mn10300;
 348       break;
 349 #endif
 350 #ifdef ARCH_nios2
 351     case bfd_arch_nios2:
 352       if (bfd_big_endian (abfd))
 353         disassemble = print_insn_big_nios2;
 354       else
 355         disassemble = print_insn_little_nios2;
 356       break;
 357 #endif
 358 #ifdef ARCH_or1k
 359     case bfd_arch_or1k:
 360       disassemble = print_insn_or1k;
 361       break;
 362 #endif
 363 #ifdef ARCH_pdp11
 364     case bfd_arch_pdp11:
 365       disassemble = print_insn_pdp11;
 366       break;
 367 #endif
 368 #ifdef ARCH_pj
 369     case bfd_arch_pj:
 370       disassemble = print_insn_pj;
 371       break;
 372 #endif
 373 #ifdef ARCH_powerpc
 374     case bfd_arch_powerpc:
 375       if (bfd_big_endian (abfd))
 376         disassemble = print_insn_big_powerpc;
 377       else
 378         disassemble = print_insn_little_powerpc;
 379       break;
 380 #endif
 381 #ifdef ARCH_pru
 382     case bfd_arch_pru:
 383       disassemble = print_insn_pru;
 384       break;
 385 #endif
 386 #ifdef ARCH_riscv
 387     case bfd_arch_riscv:
 388       disassemble = print_insn_riscv;
 389       break;
 390 #endif
 391 #ifdef ARCH_rs6000
 392     case bfd_arch_rs6000:
 393       if (bfd_get_mach (abfd) == bfd_mach_ppc_620)
 394         disassemble = print_insn_big_powerpc;
 395       else
 396         disassemble = print_insn_rs6000;
 397       break;
 398 #endif
 399 #ifdef ARCH_rl78
 400     case bfd_arch_rl78:
 401       disassemble = rl78_get_disassembler (abfd);
 402       break;
 403 #endif
 404 #ifdef ARCH_rx
 405     case bfd_arch_rx:
 406       disassemble = print_insn_rx;
 407       break;
 408 #endif
 409 #ifdef ARCH_s390
 410     case bfd_arch_s390:
 411       disassemble = print_insn_s390;
 412       break;
 413 #endif
 414 #ifdef ARCH_score
 415     case bfd_arch_score:
 416       if (bfd_big_endian (abfd))
 417         disassemble = print_insn_big_score;
 418       else
 419         disassemble = print_insn_little_score;
 420      break;
 421 #endif
 422 #ifdef ARCH_sh
 423     case bfd_arch_sh:
 424       disassemble = print_insn_sh;
 425       break;
 426 #endif
 427 #ifdef ARCH_sparc
 428     case bfd_arch_sparc:
 429       disassemble = print_insn_sparc;
 430       break;
 431 #endif
 432 #ifdef ARCH_spu
 433     case bfd_arch_spu:
 434       disassemble = print_insn_spu;
 435       break;
 436 #endif
 437 #ifdef ARCH_tic30
 438     case bfd_arch_tic30:
 439       disassemble = print_insn_tic30;
 440       break;
 441 #endif
 442 #ifdef ARCH_tic4x
 443     case bfd_arch_tic4x:
 444       disassemble = print_insn_tic4x;
 445       break;
 446 #endif
 447 #ifdef ARCH_tic54x
 448     case bfd_arch_tic54x:
 449       disassemble = print_insn_tic54x;
 450       break;
 451 #endif
 452 #ifdef ARCH_tic6x
 453     case bfd_arch_tic6x:
 454       disassemble = print_insn_tic6x;
 455       break;
 456 #endif
 457 #ifdef ARCH_tic80
 458     case bfd_arch_tic80:
 459       disassemble = print_insn_tic80;
 460       break;
 461 #endif
 462 #ifdef ARCH_ft32
 463     case bfd_arch_ft32:
 464       disassemble = print_insn_ft32;
 465       break;
 466 #endif
 467 #ifdef ARCH_v850
 468     case bfd_arch_v850:
 469     case bfd_arch_v850_rh850:
 470       disassemble = print_insn_v850;
 471       break;
 472 #endif
 473 #ifdef ARCH_w65
 474     case bfd_arch_w65:
 475       disassemble = print_insn_w65;
 476       break;
 477 #endif
 478 #ifdef ARCH_wasm32
 479     case bfd_arch_wasm32:
 480       disassemble = print_insn_wasm32;
 481       break;
 482 #endif
 483 #ifdef ARCH_xgate
 484     case bfd_arch_xgate:
 485       disassemble = print_insn_xgate;
 486       break;
 487 #endif
 488 #ifdef ARCH_xstormy16
 489     case bfd_arch_xstormy16:
 490       disassemble = print_insn_xstormy16;
 491       break;
 492 #endif
 493 #ifdef ARCH_xc16x
 494     case bfd_arch_xc16x:
 495       disassemble = print_insn_xc16x;
 496       break;
 497 #endif
 498 #ifdef ARCH_xtensa
 499     case bfd_arch_xtensa:
 500       disassemble = print_insn_xtensa;
 501       break;
 502 #endif
 503 #ifdef ARCH_z80
 504     case bfd_arch_z80:
 505       disassemble = print_insn_z80;
 506       break;
 507 #endif
 508 #ifdef ARCH_z8k
 509     case bfd_arch_z8k:
 510       if (bfd_get_mach(abfd) == bfd_mach_z8001)
 511         disassemble = print_insn_z8001;
 512       else
 513         disassemble = print_insn_z8002;
 514       break;
 515 #endif
 516 #ifdef ARCH_vax
 517     case bfd_arch_vax:
 518       disassemble = print_insn_vax;
 519       break;
 520 #endif
 521 #ifdef ARCH_visium
 522      case bfd_arch_visium:
 523        disassemble = print_insn_visium;
 524        break;
 525 #endif
 526 #ifdef ARCH_frv
 527     case bfd_arch_frv:
 528       disassemble = print_insn_frv;
 529       break;
 530 #endif
 531 #ifdef ARCH_moxie
 532     case bfd_arch_moxie:
 533       disassemble = print_insn_moxie;
 534       break;
 535 #endif
 536 #ifdef ARCH_iq2000
 537     case bfd_arch_iq2000:
 538       disassemble = print_insn_iq2000;
 539       break;
 540 #endif
 541 #ifdef ARCH_m32c
 542     case bfd_arch_m32c:
 543       disassemble = print_insn_m32c;
 544       break;
 545 #endif
 546 #ifdef ARCH_tilegx
 547     case bfd_arch_tilegx:
 548       disassemble = print_insn_tilegx;
 549       break;
 550 #endif
 551 #ifdef ARCH_tilepro
 552     case bfd_arch_tilepro:
 553       disassemble = print_insn_tilepro;
 554       break;
 555 #endif
 556     default:
 557       return 0;
 558     }
 559   return disassemble;
 560 }
 561
 562 void
 563 disassembler_usage (FILE *stream ATTRIBUTE_UNUSED)
 564 {
 565 #ifdef ARCH_aarch64
 566   print_aarch64_disassembler_options (stream);
 567 #endif
 568 #ifdef ARCH_arc
 569   print_arc_disassembler_options (stream);
 570 #endif
 571 #ifdef ARCH_arm
 572   print_arm_disassembler_options (stream);
 573 #endif
 574 #ifdef ARCH_mips
 575   print_mips_disassembler_options (stream);
 576 #endif
 577 #ifdef ARCH_powerpc
 578   print_ppc_disassembler_options (stream);
 579 #endif
 580 #ifdef ARCH_riscv
 581   print_riscv_disassembler_options (stream);
 582 #endif
 583 #ifdef ARCH_i386
 584   print_i386_disassembler_options (stream);
 585 #endif
 586 #ifdef ARCH_s390
 587   print_s390_disassembler_options (stream);
 588 #endif
 589 #ifdef ARCH_wasm32
 590   print_wasm32_disassembler_options (stream);
 591 #endif
 592
 593   return;
 594 }
 595
 596 void
 597 disassemble_init_for_target (struct disassemble_info * info)
 598 {
 599   if (info == NULL)
 600     return;
 601
 602   switch (info->arch)
 603     {
 604 #ifdef ARCH_aarch64
 605     case bfd_arch_aarch64:
 606       info->symbol_is_valid = aarch64_symbol_is_valid;
 607       info->disassembler_needs_relocs = TRUE;
 608       break;
 609 #endif
 610 #ifdef ARCH_arm
 611     case bfd_arch_arm:
 612       info->symbol_is_valid = arm_symbol_is_valid;
 613       info->disassembler_needs_relocs = TRUE;
 614       break;
 615 #endif
 616 #ifdef ARCH_ia64
 617     case bfd_arch_ia64:
 618       info->skip_zeroes = 16;
 619       break;
 620 #endif
 621 #ifdef ARCH_tic4x
 622     case bfd_arch_tic4x:
 623       info->skip_zeroes = 32;
 624       break;
 625 #endif
 626 #ifdef ARCH_mep
 627     case bfd_arch_mep:
 628       info->skip_zeroes = 256;
 629       info->skip_zeroes_at_end = 0;
 630       break;
 631 #endif
 632 #ifdef ARCH_metag
 633     case bfd_arch_metag:
 634       info->disassembler_needs_relocs = TRUE;
 635       break;
 636 #endif
 637 #ifdef ARCH_m32c
 638     case bfd_arch_m32c:
 639       /* This processor in fact is little endian.  The value set here
 640          reflects the way opcodes are written in the cgen description.  */
 641       info->endian = BFD_ENDIAN_BIG;
 642       if (! info->insn_sets)
 643         {
 644           info->insn_sets = cgen_bitset_create (ISA_MAX);
 645           if (info->mach == bfd_mach_m16c)
 646             cgen_bitset_set (info->insn_sets, ISA_M16C);
 647           else
 648             cgen_bitset_set (info->insn_sets, ISA_M32C);
 649         }
 650       break;
 651 #endif
 652 #ifdef ARCH_powerpc
 653     case bfd_arch_powerpc:
 654 #endif
 655 #ifdef ARCH_rs6000
 656     case bfd_arch_rs6000:
 657 #endif
 658 #if defined (ARCH_powerpc) || defined (ARCH_rs6000)
 659       disassemble_init_powerpc (info);
 660       break;
 661 #endif
 662 #ifdef ARCH_wasm32
 663     case bfd_arch_wasm32:
 664       disassemble_init_wasm32 (info);
 665       break;
 666 #endif
 667 #ifdef ARCH_s390
 668     case bfd_arch_s390:
 669       disassemble_init_s390 (info);
 670       break;
 671 #endif
 672     default:
 673       break;
 674     }
 675 }
 676
 677 /* Remove whitespace and consecutive commas from OPTIONS.  */
 678
 679 char *
 680 remove_whitespace_and_extra_commas (char *options)
 681 {
 682   char *str;
 683   size_t i, len;
 684
 685   if (options == NULL)
 686     return NULL;
 687
 688   /* Strip off all trailing whitespace and commas.  */
 689   for (len = strlen (options); len > 0; len--)
 690     {
 691       if (!ISSPACE (options[len - 1]) && options[len - 1] != ',')
 692         break;
 693       options[len - 1] = '\0';
 694     }
 695
 696   /* Convert all remaining whitespace to commas.  */
 697   for (i = 0; options[i] != '\0'; i++)
 698     if (ISSPACE (options[i]))
 699       options[i] = ',';
 700
 701   /* Remove consecutive commas.  */
 702   for (str = options; *str != '\0'; str++)
 703     if (*str == ',' && (*(str + 1) == ',' || str == options))
 704       {
 705         char *next = str + 1;
 706         while (*next == ',')
 707           next++;
 708         len = strlen (next);
 709         if (str != options)
 710           str++;
 711         memmove (str, next, len);
 712         next[len - (size_t)(next - str)] = '\0';
 713       }
 714   return (strlen (options) != 0) ? options : NULL;
 715 }
 716
 717 /* Like STRCMP, but treat ',' the same as '\0' so that we match
 718    strings like "foobar" against "foobar,xxyyzz,...".  */
 719
 720 int
 721 disassembler_options_cmp (const char *s1, const char *s2)
 722 {
 723   unsigned char c1, c2;
 724
 725   do
 726     {
 727       c1 = (unsigned char) *s1++;
 728       if (c1 == ',')
 729         c1 = '\0';
 730       c2 = (unsigned char) *s2++;
 731       if (c2 == ',')
 732         c2 = '\0';
 733       if (c1 == '\0')
 734         return c1 - c2;
 735     }
 736   while (c1 == c2);
 737
 738   return c1 - c2;
 739 }