opcodes/disassemble.c

   1 /* Select disassembly routine for specified architecture.
   2    Copyright (C) 1994-2019 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 "disassemble.h"
  23 #include "safe-ctype.h"
  24 #include <assert.h>
  25
  26 #ifdef ARCH_all
  27 #define ARCH_aarch64
  28 #define ARCH_alpha
  29 #define ARCH_arc
  30 #define ARCH_arm
  31 #define ARCH_avr
  32 #define ARCH_bfin
  33 #define ARCH_cr16
  34 #define ARCH_cris
  35 #define ARCH_crx
  36 #define ARCH_csky
  37 #define ARCH_d10v
  38 #define ARCH_d30v
  39 #define ARCH_dlx
  40 #define ARCH_bpf
  41 #define ARCH_epiphany
  42 #define ARCH_fr30
  43 #define ARCH_frv
  44 #define ARCH_ft32
  45 #define ARCH_h8300
  46 #define ARCH_hppa
  47 #define ARCH_i386
  48 #define ARCH_ia64
  49 #define ARCH_ip2k
  50 #define ARCH_iq2000
  51 #define ARCH_lm32
  52 #define ARCH_m32c
  53 #define ARCH_m32r
  54 #define ARCH_m68hc11
  55 #define ARCH_m68hc12
  56 #define ARCH_m68k
  57 #define ARCH_mcore
  58 #define ARCH_mep
  59 #define ARCH_metag
  60 #define ARCH_microblaze
  61 #define ARCH_mips
  62 #define ARCH_mmix
  63 #define ARCH_mn10200
  64 #define ARCH_mn10300
  65 #define ARCH_moxie
  66 #define ARCH_mt
  67 #define ARCH_msp430
  68 #define ARCH_nds32
  69 #define ARCH_nfp
  70 #define ARCH_nios2
  71 #define ARCH_ns32k
  72 #define ARCH_or1k
  73 #define ARCH_pdp11
  74 #define ARCH_pj
  75 #define ARCH_powerpc
  76 #define ARCH_pru
  77 #define ARCH_riscv
  78 #define ARCH_rs6000
  79 #define ARCH_rl78
  80 #define ARCH_rx
  81 #define ARCH_s12z
  82 #define ARCH_s390
  83 #define ARCH_score
  84 #define ARCH_sh
  85 #define ARCH_sparc
  86 #define ARCH_spu
  87 #define ARCH_tic30
  88 #define ARCH_tic4x
  89 #define ARCH_tic54x
  90 #define ARCH_tic6x
  91 #define ARCH_tic80
  92 #define ARCH_tilegx
  93 #define ARCH_tilepro
  94 #define ARCH_v850
  95 #define ARCH_vax
  96 #define ARCH_visium
  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 #endif
 105
 106 #ifdef ARCH_m32c
 107 #include "m32c-desc.h"
 108 #endif
 109
 110 #ifdef ARCH_bpf
 111 /* XXX this should be including bpf-desc.h instead of this hackery,
 112    but at the moment it is not possible to include several CGEN
 113    generated *-desc.h files simultaneously.  To be fixed in
 114    CGEN...  */
 115
 116 # ifdef ARCH_m32c
 117 enum epbf_isa_attr
 118 {
 119  ISA_EBPFLE, ISA_EBPFBE, ISA_EBPFMAX
 120 };
 121 # else
 122 #  include "bpf-desc.h"
 123 #  define ISA_EBPFMAX ISA_MAX
 124 # endif
 125 #endif /* ARCH_bpf */
 126
 127 disassembler_ftype
 128 disassembler (enum bfd_architecture a,
 129               bfd_boolean big ATTRIBUTE_UNUSED,
 130               unsigned long mach ATTRIBUTE_UNUSED,
 131               bfd *abfd ATTRIBUTE_UNUSED)
 132 {
 133   disassembler_ftype disassemble;
 134
 135   switch (a)
 136     {
 137       /* If you add a case to this table, also add it to the
 138          ARCH_all definition right above this function.  */
 139 #ifdef ARCH_aarch64
 140     case bfd_arch_aarch64:
 141       disassemble = print_insn_aarch64;
 142       break;
 143 #endif
 144 #ifdef ARCH_alpha
 145     case bfd_arch_alpha:
 146       disassemble = print_insn_alpha;
 147       break;
 148 #endif
 149 #ifdef ARCH_arc
 150     case bfd_arch_arc:
 151       disassemble = arc_get_disassembler (abfd);
 152       break;
 153 #endif
 154 #ifdef ARCH_arm
 155     case bfd_arch_arm:
 156       if (big)
 157         disassemble = print_insn_big_arm;
 158       else
 159         disassemble = print_insn_little_arm;
 160       break;
 161 #endif
 162 #ifdef ARCH_avr
 163     case bfd_arch_avr:
 164       disassemble = print_insn_avr;
 165       break;
 166 #endif
 167 #ifdef ARCH_bfin
 168     case bfd_arch_bfin:
 169       disassemble = print_insn_bfin;
 170       break;
 171 #endif
 172 #ifdef ARCH_cr16
 173     case bfd_arch_cr16:
 174       disassemble = print_insn_cr16;
 175       break;
 176 #endif
 177 #ifdef ARCH_cris
 178     case bfd_arch_cris:
 179       disassemble = cris_get_disassembler (abfd);
 180       break;
 181 #endif
 182 #ifdef ARCH_crx
 183     case bfd_arch_crx:
 184       disassemble = print_insn_crx;
 185       break;
 186 #endif
 187 #ifdef ARCH_csky
 188     case bfd_arch_csky:
 189       disassemble = csky_get_disassembler (abfd);
 190       break;
 191 #endif
 192
 193 #ifdef ARCH_d10v
 194     case bfd_arch_d10v:
 195       disassemble = print_insn_d10v;
 196       break;
 197 #endif
 198 #ifdef ARCH_d30v
 199     case bfd_arch_d30v:
 200       disassemble = print_insn_d30v;
 201       break;
 202 #endif
 203 #ifdef ARCH_dlx
 204     case bfd_arch_dlx:
 205       /* As far as I know we only handle big-endian DLX objects.  */
 206       disassemble = print_insn_dlx;
 207       break;
 208 #endif
 209 #ifdef ARCH_h8300
 210     case bfd_arch_h8300:
 211       if (mach == bfd_mach_h8300h || mach == bfd_mach_h8300hn)
 212         disassemble = print_insn_h8300h;
 213       else if (mach == bfd_mach_h8300s
 214                || mach == bfd_mach_h8300sn
 215                || mach == bfd_mach_h8300sx
 216                || mach == bfd_mach_h8300sxn)
 217         disassemble = print_insn_h8300s;
 218       else
 219         disassemble = print_insn_h8300;
 220       break;
 221 #endif
 222 #ifdef ARCH_hppa
 223     case bfd_arch_hppa:
 224       disassemble = print_insn_hppa;
 225       break;
 226 #endif
 227 #ifdef ARCH_i386
 228     case bfd_arch_i386:
 229     case bfd_arch_iamcu:
 230     case bfd_arch_l1om:
 231     case bfd_arch_k1om:
 232       disassemble = print_insn_i386;
 233       break;
 234 #endif
 235 #ifdef ARCH_ia64
 236     case bfd_arch_ia64:
 237       disassemble = print_insn_ia64;
 238       break;
 239 #endif
 240 #ifdef ARCH_ip2k
 241     case bfd_arch_ip2k:
 242       disassemble = print_insn_ip2k;
 243       break;
 244 #endif
 245 #ifdef ARCH_bpf
 246     case bfd_arch_bpf:
 247       disassemble = print_insn_bpf;
 248       break;
 249 #endif
 250 #ifdef ARCH_epiphany
 251     case bfd_arch_epiphany:
 252       disassemble = print_insn_epiphany;
 253       break;
 254 #endif
 255 #ifdef ARCH_fr30
 256     case bfd_arch_fr30:
 257       disassemble = print_insn_fr30;
 258       break;
 259 #endif
 260 #ifdef ARCH_lm32
 261     case bfd_arch_lm32:
 262       disassemble = print_insn_lm32;
 263       break;
 264 #endif
 265 #ifdef ARCH_m32r
 266     case bfd_arch_m32r:
 267       disassemble = print_insn_m32r;
 268       break;
 269 #endif
 270 #if defined(ARCH_m68hc11) || defined(ARCH_m68hc12) \
 271     || defined(ARCH_9s12x) || defined(ARCH_m9s12xg)
 272     case bfd_arch_m68hc11:
 273       disassemble = print_insn_m68hc11;
 274       break;
 275     case bfd_arch_m68hc12:
 276       disassemble = print_insn_m68hc12;
 277       break;
 278     case bfd_arch_m9s12x:
 279       disassemble = print_insn_m9s12x;
 280       break;
 281     case bfd_arch_m9s12xg:
 282       disassemble = print_insn_m9s12xg;
 283       break;
 284 #endif
 285 #if defined(ARCH_s12z)
 286     case bfd_arch_s12z:
 287       disassemble = print_insn_s12z;
 288       break;
 289 #endif
 290 #ifdef ARCH_m68k
 291     case bfd_arch_m68k:
 292       disassemble = print_insn_m68k;
 293       break;
 294 #endif
 295 #ifdef ARCH_mt
 296     case bfd_arch_mt:
 297       disassemble = print_insn_mt;
 298       break;
 299 #endif
 300 #ifdef ARCH_microblaze
 301     case bfd_arch_microblaze:
 302       disassemble = print_insn_microblaze;
 303       break;
 304 #endif
 305 #ifdef ARCH_msp430
 306     case bfd_arch_msp430:
 307       disassemble = print_insn_msp430;
 308       break;
 309 #endif
 310 #ifdef ARCH_nds32
 311     case bfd_arch_nds32:
 312       disassemble = print_insn_nds32;
 313       break;
 314 #endif
 315 #ifdef ARCH_nfp
 316     case bfd_arch_nfp:
 317       disassemble = print_insn_nfp;
 318       break;
 319 #endif
 320 #ifdef ARCH_ns32k
 321     case bfd_arch_ns32k:
 322       disassemble = print_insn_ns32k;
 323       break;
 324 #endif
 325 #ifdef ARCH_mcore
 326     case bfd_arch_mcore:
 327       disassemble = print_insn_mcore;
 328       break;
 329 #endif
 330 #ifdef ARCH_mep
 331     case bfd_arch_mep:
 332       disassemble = print_insn_mep;
 333       break;
 334 #endif
 335 #ifdef ARCH_metag
 336     case bfd_arch_metag:
 337       disassemble = print_insn_metag;
 338       break;
 339 #endif
 340 #ifdef ARCH_mips
 341     case bfd_arch_mips:
 342       if (big)
 343         disassemble = print_insn_big_mips;
 344       else
 345         disassemble = print_insn_little_mips;
 346       break;
 347 #endif
 348 #ifdef ARCH_mmix
 349     case bfd_arch_mmix:
 350       disassemble = print_insn_mmix;
 351       break;
 352 #endif
 353 #ifdef ARCH_mn10200
 354     case bfd_arch_mn10200:
 355       disassemble = print_insn_mn10200;
 356       break;
 357 #endif
 358 #ifdef ARCH_mn10300
 359     case bfd_arch_mn10300:
 360       disassemble = print_insn_mn10300;
 361       break;
 362 #endif
 363 #ifdef ARCH_nios2
 364     case bfd_arch_nios2:
 365       if (big)
 366         disassemble = print_insn_big_nios2;
 367       else
 368         disassemble = print_insn_little_nios2;
 369       break;
 370 #endif
 371 #ifdef ARCH_or1k
 372     case bfd_arch_or1k:
 373       disassemble = print_insn_or1k;
 374       break;
 375 #endif
 376 #ifdef ARCH_pdp11
 377     case bfd_arch_pdp11:
 378       disassemble = print_insn_pdp11;
 379       break;
 380 #endif
 381 #ifdef ARCH_pj
 382     case bfd_arch_pj:
 383       disassemble = print_insn_pj;
 384       break;
 385 #endif
 386 #ifdef ARCH_powerpc
 387     case bfd_arch_powerpc:
 388 #endif
 389 #ifdef ARCH_rs6000
 390     case bfd_arch_rs6000:
 391 #endif
 392 #if defined ARCH_powerpc || defined ARCH_rs6000
 393       if (big)
 394         disassemble = print_insn_big_powerpc;
 395       else
 396         disassemble = print_insn_little_powerpc;
 397       break;
 398 #endif
 399 #ifdef ARCH_pru
 400     case bfd_arch_pru:
 401       disassemble = print_insn_pru;
 402       break;
 403 #endif
 404 #ifdef ARCH_riscv
 405     case bfd_arch_riscv:
 406       disassemble = print_insn_riscv;
 407       break;
 408 #endif
 409 #ifdef ARCH_rl78
 410     case bfd_arch_rl78:
 411       disassemble = rl78_get_disassembler (abfd);
 412       break;
 413 #endif
 414 #ifdef ARCH_rx
 415     case bfd_arch_rx:
 416       disassemble = print_insn_rx;
 417       break;
 418 #endif
 419 #ifdef ARCH_s390
 420     case bfd_arch_s390:
 421       disassemble = print_insn_s390;
 422       break;
 423 #endif
 424 #ifdef ARCH_score
 425     case bfd_arch_score:
 426       if (big)
 427         disassemble = print_insn_big_score;
 428       else
 429         disassemble = print_insn_little_score;
 430      break;
 431 #endif
 432 #ifdef ARCH_sh
 433     case bfd_arch_sh:
 434       disassemble = print_insn_sh;
 435       break;
 436 #endif
 437 #ifdef ARCH_sparc
 438     case bfd_arch_sparc:
 439       disassemble = print_insn_sparc;
 440       break;
 441 #endif
 442 #ifdef ARCH_spu
 443     case bfd_arch_spu:
 444       disassemble = print_insn_spu;
 445       break;
 446 #endif
 447 #ifdef ARCH_tic30
 448     case bfd_arch_tic30:
 449       disassemble = print_insn_tic30;
 450       break;
 451 #endif
 452 #ifdef ARCH_tic4x
 453     case bfd_arch_tic4x:
 454       disassemble = print_insn_tic4x;
 455       break;
 456 #endif
 457 #ifdef ARCH_tic54x
 458     case bfd_arch_tic54x:
 459       disassemble = print_insn_tic54x;
 460       break;
 461 #endif
 462 #ifdef ARCH_tic6x
 463     case bfd_arch_tic6x:
 464       disassemble = print_insn_tic6x;
 465       break;
 466 #endif
 467 #ifdef ARCH_tic80
 468     case bfd_arch_tic80:
 469       disassemble = print_insn_tic80;
 470       break;
 471 #endif
 472 #ifdef ARCH_ft32
 473     case bfd_arch_ft32:
 474       disassemble = print_insn_ft32;
 475       break;
 476 #endif
 477 #ifdef ARCH_v850
 478     case bfd_arch_v850:
 479     case bfd_arch_v850_rh850:
 480       disassemble = print_insn_v850;
 481       break;
 482 #endif
 483 #ifdef ARCH_wasm32
 484     case bfd_arch_wasm32:
 485       disassemble = print_insn_wasm32;
 486       break;
 487 #endif
 488 #ifdef ARCH_xgate
 489     case bfd_arch_xgate:
 490       disassemble = print_insn_xgate;
 491       break;
 492 #endif
 493 #ifdef ARCH_xstormy16
 494     case bfd_arch_xstormy16:
 495       disassemble = print_insn_xstormy16;
 496       break;
 497 #endif
 498 #ifdef ARCH_xc16x
 499     case bfd_arch_xc16x:
 500       disassemble = print_insn_xc16x;
 501       break;
 502 #endif
 503 #ifdef ARCH_xtensa
 504     case bfd_arch_xtensa:
 505       disassemble = print_insn_xtensa;
 506       break;
 507 #endif
 508 #ifdef ARCH_z80
 509     case bfd_arch_z80:
 510       disassemble = print_insn_z80;
 511       break;
 512 #endif
 513 #ifdef ARCH_z8k
 514     case bfd_arch_z8k:
 515       if (mach == bfd_mach_z8001)
 516         disassemble = print_insn_z8001;
 517       else
 518         disassemble = print_insn_z8002;
 519       break;
 520 #endif
 521 #ifdef ARCH_vax
 522     case bfd_arch_vax:
 523       disassemble = print_insn_vax;
 524       break;
 525 #endif
 526 #ifdef ARCH_visium
 527      case bfd_arch_visium:
 528        disassemble = print_insn_visium;
 529        break;
 530 #endif
 531 #ifdef ARCH_frv
 532     case bfd_arch_frv:
 533       disassemble = print_insn_frv;
 534       break;
 535 #endif
 536 #ifdef ARCH_moxie
 537     case bfd_arch_moxie:
 538       disassemble = print_insn_moxie;
 539       break;
 540 #endif
 541 #ifdef ARCH_iq2000
 542     case bfd_arch_iq2000:
 543       disassemble = print_insn_iq2000;
 544       break;
 545 #endif
 546 #ifdef ARCH_m32c
 547     case bfd_arch_m32c:
 548       disassemble = print_insn_m32c;
 549       break;
 550 #endif
 551 #ifdef ARCH_tilegx
 552     case bfd_arch_tilegx:
 553       disassemble = print_insn_tilegx;
 554       break;
 555 #endif
 556 #ifdef ARCH_tilepro
 557     case bfd_arch_tilepro:
 558       disassemble = print_insn_tilepro;
 559       break;
 560 #endif
 561     default:
 562       return 0;
 563     }
 564   return disassemble;
 565 }
 566
 567 void
 568 disassembler_usage (FILE *stream ATTRIBUTE_UNUSED)
 569 {
 570 #ifdef ARCH_aarch64
 571   print_aarch64_disassembler_options (stream);
 572 #endif
 573 #ifdef ARCH_arc
 574   print_arc_disassembler_options (stream);
 575 #endif
 576 #ifdef ARCH_arm
 577   print_arm_disassembler_options (stream);
 578 #endif
 579 #ifdef ARCH_mips
 580   print_mips_disassembler_options (stream);
 581 #endif
 582 #ifdef ARCH_nfp
 583   print_nfp_disassembler_options (stream);
 584 #endif
 585 #ifdef ARCH_powerpc
 586   print_ppc_disassembler_options (stream);
 587 #endif
 588 #ifdef ARCH_riscv
 589   print_riscv_disassembler_options (stream);
 590 #endif
 591 #ifdef ARCH_i386
 592   print_i386_disassembler_options (stream);
 593 #endif
 594 #ifdef ARCH_s390
 595   print_s390_disassembler_options (stream);
 596 #endif
 597 #ifdef ARCH_wasm32
 598   print_wasm32_disassembler_options (stream);
 599 #endif
 600
 601   return;
 602 }
 603
 604 void
 605 disassemble_init_for_target (struct disassemble_info * info)
 606 {
 607   if (info == NULL)
 608     return;
 609
 610   switch (info->arch)
 611     {
 612 #ifdef ARCH_aarch64
 613     case bfd_arch_aarch64:
 614       info->symbol_is_valid = aarch64_symbol_is_valid;
 615       info->disassembler_needs_relocs = TRUE;
 616       break;
 617 #endif
 618 #ifdef ARCH_arm
 619     case bfd_arch_arm:
 620       info->symbol_is_valid = arm_symbol_is_valid;
 621       info->disassembler_needs_relocs = TRUE;
 622       break;
 623 #endif
 624 #ifdef ARCH_csky
 625     case bfd_arch_csky:
 626       info->symbol_is_valid = csky_symbol_is_valid;
 627       info->disassembler_needs_relocs = TRUE;
 628       break;
 629 #endif
 630
 631 #ifdef ARCH_ia64
 632     case bfd_arch_ia64:
 633       info->skip_zeroes = 16;
 634       break;
 635 #endif
 636 #ifdef ARCH_tic4x
 637     case bfd_arch_tic4x:
 638       info->skip_zeroes = 32;
 639       break;
 640 #endif
 641 #ifdef ARCH_mep
 642     case bfd_arch_mep:
 643       info->skip_zeroes = 256;
 644       info->skip_zeroes_at_end = 0;
 645       break;
 646 #endif
 647 #ifdef ARCH_metag
 648     case bfd_arch_metag:
 649       info->disassembler_needs_relocs = TRUE;
 650       break;
 651 #endif
 652 #ifdef ARCH_m32c
 653     case bfd_arch_m32c:
 654       /* This processor in fact is little endian.  The value set here
 655          reflects the way opcodes are written in the cgen description.  */
 656       info->endian = BFD_ENDIAN_BIG;
 657       if (!info->private_data)
 658         {
 659           info->private_data = cgen_bitset_create (ISA_MAX);
 660           if (info->mach == bfd_mach_m16c)
 661             cgen_bitset_set (info->private_data, ISA_M16C);
 662           else
 663             cgen_bitset_set (info->private_data, ISA_M32C);
 664         }
 665       break;
 666 #endif
 667 #ifdef ARCH_bpf
 668     case bfd_arch_bpf:
 669       if (!info->private_data)
 670         {
 671           info->private_data = cgen_bitset_create (ISA_EBPFMAX);
 672           if (info->endian == BFD_ENDIAN_BIG)
 673             cgen_bitset_set (info->private_data, ISA_EBPFBE);
 674           else
 675             cgen_bitset_set (info->private_data, ISA_EBPFLE);
 676         }
 677       break;
 678 #endif
 679 #ifdef ARCH_pru
 680     case bfd_arch_pru:
 681       info->disassembler_needs_relocs = TRUE;
 682       break;
 683 #endif
 684 #ifdef ARCH_powerpc
 685     case bfd_arch_powerpc:
 686 #endif
 687 #ifdef ARCH_rs6000
 688     case bfd_arch_rs6000:
 689 #endif
 690 #if defined (ARCH_powerpc) || defined (ARCH_rs6000)
 691       disassemble_init_powerpc (info);
 692       break;
 693 #endif
 694 #ifdef ARCH_riscv
 695     case bfd_arch_riscv:
 696       info->symbol_is_valid = riscv_symbol_is_valid;
 697       break;
 698 #endif
 699 #ifdef ARCH_wasm32
 700     case bfd_arch_wasm32:
 701       disassemble_init_wasm32 (info);
 702       break;
 703 #endif
 704 #ifdef ARCH_s390
 705     case bfd_arch_s390:
 706       disassemble_init_s390 (info);
 707       break;
 708 #endif
 709 #ifdef ARCH_nds32
 710     case bfd_arch_nds32:
 711       disassemble_init_nds32 (info);
 712       break;
 713  #endif
 714     default:
 715       break;
 716     }
 717 }
 718
 719 void
 720 disassemble_free_target (struct disassemble_info *info)
 721 {
 722   if (info == NULL)
 723     return;
 724
 725   switch (info->arch)
 726     {
 727     default:
 728       return;
 729
 730 #ifdef ARCH_bpf
 731     case bfd_arch_bpf:
 732 #endif
 733 #ifdef ARCH_m32c
 734     case bfd_arch_m32c:
 735 #endif
 736 #if defined ARCH_bpf || defined ARCH_m32c
 737       if (info->private_data)
 738         {
 739           CGEN_BITSET *mask = info->private_data;
 740           free (mask->bits);
 741         }
 742       break;
 743 #endif
 744
 745 #ifdef ARCH_arc
 746     case bfd_arch_arc:
 747       break;
 748 #endif
 749 #ifdef ARCH_cris
 750     case bfd_arch_cris:
 751       break;
 752 #endif
 753 #ifdef ARCH_mmix
 754     case bfd_arch_mmix:
 755       break;
 756 #endif
 757 #ifdef ARCH_nfp
 758     case bfd_arch_nfp:
 759       break;
 760 #endif
 761 #ifdef ARCH_powerpc
 762     case bfd_arch_powerpc:
 763       break;
 764 #endif
 765 #ifdef ARCH_riscv
 766     case bfd_arch_riscv:
 767       break;
 768 #endif
 769 #ifdef ARCH_rs6000
 770     case bfd_arch_rs6000:
 771       break;
 772 #endif
 773     }
 774
 775   free (info->private_data);
 776 }
 777
 778 /* Remove whitespace and consecutive commas from OPTIONS.  */
 779
 780 char *
 781 remove_whitespace_and_extra_commas (char *options)
 782 {
 783   char *str;
 784   size_t i, len;
 785
 786   if (options == NULL)
 787     return NULL;
 788
 789   /* Strip off all trailing whitespace and commas.  */
 790   for (len = strlen (options); len > 0; len--)
 791     {
 792       if (!ISSPACE (options[len - 1]) && options[len - 1] != ',')
 793         break;
 794       options[len - 1] = '\0';
 795     }
 796
 797   /* Convert all remaining whitespace to commas.  */
 798   for (i = 0; options[i] != '\0'; i++)
 799     if (ISSPACE (options[i]))
 800       options[i] = ',';
 801
 802   /* Remove consecutive commas.  */
 803   for (str = options; *str != '\0'; str++)
 804     if (*str == ',' && (*(str + 1) == ',' || str == options))
 805       {
 806         char *next = str + 1;
 807         while (*next == ',')
 808           next++;
 809         len = strlen (next);
 810         if (str != options)
 811           str++;
 812         memmove (str, next, len);
 813         next[len - (size_t)(next - str)] = '\0';
 814       }
 815   return (strlen (options) != 0) ? options : NULL;
 816 }
 817
 818 /* Like STRCMP, but treat ',' the same as '\0' so that we match
 819    strings like "foobar" against "foobar,xxyyzz,...".  */
 820
 821 int
 822 disassembler_options_cmp (const char *s1, const char *s2)
 823 {
 824   unsigned char c1, c2;
 825
 826   do
 827     {
 828       c1 = (unsigned char) *s1++;
 829       if (c1 == ',')
 830         c1 = '\0';
 831       c2 = (unsigned char) *s2++;
 832       if (c2 == ',')
 833         c2 = '\0';
 834       if (c1 == '\0')
 835         return c1 - c2;
 836     }
 837   while (c1 == c2);
 838
 839   return c1 - c2;
 840 }