ld/emultempl/armelf.em

   1 # This shell script emits a C file. -*- C -*-
   2 #   Copyright 1991, 1993, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   3 #   2004, 2005, 2006, 2007, 2008, 2009
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file is part of the GNU Binutils.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 # MA 02110-1301, USA.
  22 #
  23
  24 # This file is sourced from elf32.em, and defines extra arm-elf
  25 # specific routines.
  26 #
  27 test -z "$TARGET2_TYPE" && TARGET2_TYPE="rel"
  28 fragment <<EOF
  29
  30 #include "ldctor.h"
  31 #include "elf/arm.h"
  32
  33 static char *thumb_entry_symbol = NULL;
  34 static int byteswap_code = 0;
  35 static int target1_is_rel = 0${TARGET1_IS_REL};
  36 static char *target2_type = "${TARGET2_TYPE}";
  37 static int fix_v4bx = 0;
  38 static int use_blx = 0;
  39 static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT;
  40 static int fix_cortex_a8 = -1;
  41 static int no_enum_size_warning = 0;
  42 static int no_wchar_size_warning = 0;
  43 static int pic_veneer = 0;
  44 static int merge_exidx_entries = -1;
  45
  46 static void
  47 gld${EMULATION_NAME}_before_parse (void)
  48 {
  49 #ifndef TARGET_                 /* I.e., if not generic.  */
  50   ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
  51 #endif /* not TARGET_ */
  52   config.dynamic_link = ${DYNAMIC_LINK-TRUE};
  53   config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
  54 }
  55
  56 static void
  57 arm_elf_before_allocation (void)
  58 {
  59   bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code);
  60
  61   /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary
  62      due to architecture version.  */
  63   bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info);
  64
  65   /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified.  */
  66   bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
  67
  68   /* We should be able to set the size of the interworking stub section.  We
  69      can't do it until later if we have dynamic sections, though.  */
  70   if (elf_hash_table (&link_info)->dynobj == NULL)
  71     {
  72       /* Here we rummage through the found bfds to collect glue information.  */
  73       LANG_FOR_EACH_INPUT_STATEMENT (is)
  74         {
  75           /* Initialise mapping tables for code/data.  */
  76           bfd_elf32_arm_init_maps (is->the_bfd);
  77
  78           if (!bfd_elf32_arm_process_before_allocation (is->the_bfd,
  79                                                         &link_info)
  80               || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info))
  81             /* xgettext:c-format */
  82             einfo (_("Errors encountered processing file %s"), is->filename);
  83         }
  84
  85       /* We have seen it all.  Allocate it, and carry on.  */
  86       bfd_elf32_arm_allocate_interworking_sections (& link_info);
  87     }
  88
  89   /* Call the standard elf routine.  */
  90   gld${EMULATION_NAME}_before_allocation ();
  91 }
  92
  93 /* Fake input file for stubs.  */
  94 static lang_input_statement_type *stub_file;
  95
  96 /* Whether we need to call gldarm_layout_sections_again.  */
  97 static int need_laying_out = 0;
  98
  99 /* Maximum size of a group of input sections that can be handled by
 100    one stub section.  A value of +/-1 indicates the bfd back-end
 101    should use a suitable default size.  */
 102 static bfd_signed_vma group_size = 1;
 103
 104 struct hook_stub_info
 105 {
 106   lang_statement_list_type add;
 107   asection *input_section;
 108 };
 109
 110 /* Traverse the linker tree to find the spot where the stub goes.  */
 111
 112 static bfd_boolean
 113 hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
 114 {
 115   lang_statement_union_type *l;
 116   bfd_boolean ret;
 117
 118   for (; (l = *lp) != NULL; lp = &l->header.next)
 119     {
 120       switch (l->header.type)
 121         {
 122         case lang_constructors_statement_enum:
 123           ret = hook_in_stub (info, &constructor_list.head);
 124           if (ret)
 125             return ret;
 126           break;
 127
 128         case lang_output_section_statement_enum:
 129           ret = hook_in_stub (info,
 130                               &l->output_section_statement.children.head);
 131           if (ret)
 132             return ret;
 133           break;
 134
 135         case lang_wild_statement_enum:
 136           ret = hook_in_stub (info, &l->wild_statement.children.head);
 137           if (ret)
 138             return ret;
 139           break;
 140
 141         case lang_group_statement_enum:
 142           ret = hook_in_stub (info, &l->group_statement.children.head);
 143           if (ret)
 144             return ret;
 145           break;
 146
 147         case lang_input_section_enum:
 148           if (l->input_section.section == info->input_section)
 149             {
 150               /* We've found our section.  Insert the stub immediately
 151                  after its associated input section.  */
 152               *(info->add.tail) = l->header.next;
 153               l->header.next = info->add.head;
 154               return TRUE;
 155             }
 156           break;
 157
 158         case lang_data_statement_enum:
 159         case lang_reloc_statement_enum:
 160         case lang_object_symbols_statement_enum:
 161         case lang_output_statement_enum:
 162         case lang_target_statement_enum:
 163         case lang_input_statement_enum:
 164         case lang_assignment_statement_enum:
 165         case lang_padding_statement_enum:
 166         case lang_address_statement_enum:
 167         case lang_fill_statement_enum:
 168           break;
 169
 170         default:
 171           FAIL ();
 172           break;
 173         }
 174     }
 175   return FALSE;
 176 }
 177
 178
 179 /* Call-back for elf32_arm_size_stubs.  */
 180
 181 /* Create a new stub section, and arrange for it to be linked
 182    immediately after INPUT_SECTION.  */
 183
 184 static asection *
 185 elf32_arm_add_stub_section (const char *stub_sec_name,
 186                             asection *input_section)
 187 {
 188   asection *stub_sec;
 189   flagword flags;
 190   asection *output_section;
 191   const char *secname;
 192   lang_output_section_statement_type *os;
 193   struct hook_stub_info info;
 194
 195   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
 196            | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
 197   stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
 198                                                  stub_sec_name, flags);
 199   if (stub_sec == NULL)
 200     goto err_ret;
 201
 202   bfd_set_section_alignment (stub_file->the_bfd, stub_sec, 3);
 203
 204   output_section = input_section->output_section;
 205   secname = bfd_get_section_name (output_section->owner, output_section);
 206   os = lang_output_section_find (secname);
 207
 208   info.input_section = input_section;
 209   lang_list_init (&info.add);
 210   lang_add_section (&info.add, stub_sec, os);
 211
 212   if (info.add.head == NULL)
 213     goto err_ret;
 214
 215   if (hook_in_stub (&info, &os->children.head))
 216     return stub_sec;
 217
 218  err_ret:
 219   einfo ("%X%P: can not make stub section: %E\n");
 220   return NULL;
 221 }
 222
 223 /* Another call-back for elf_arm_size_stubs.  */
 224
 225 static void
 226 gldarm_layout_sections_again (void)
 227 {
 228   /* If we have changed sizes of the stub sections, then we need
 229      to recalculate all the section offsets.  This may mean we need to
 230      add even more stubs.  */
 231   gld${EMULATION_NAME}_map_segments (TRUE);
 232   need_laying_out = -1;
 233 }
 234
 235 static void
 236 build_section_lists (lang_statement_union_type *statement)
 237 {
 238   if (statement->header.type == lang_input_section_enum)
 239     {
 240       asection *i = statement->input_section.section;
 241
 242       if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
 243           && (i->flags & SEC_EXCLUDE) == 0
 244           && i->output_section != NULL
 245           && i->output_section->owner == link_info.output_bfd)
 246         elf32_arm_next_input_section (& link_info, i);
 247     }
 248 }
 249
 250 static int
 251 compare_output_sec_vma (const void *a, const void *b)
 252 {
 253   asection *asec = *(asection **) a, *bsec = *(asection **) b;
 254   asection *aout = asec->output_section, *bout = bsec->output_section;
 255   bfd_vma avma, bvma;
 256
 257   /* If there's no output section for some reason, compare equal.  */
 258   if (!aout || !bout)
 259     return 0;
 260
 261   avma = aout->vma + asec->output_offset;
 262   bvma = bout->vma + bsec->output_offset;
 263
 264   if (avma > bvma)
 265     return 1;
 266   else if (avma < bvma)
 267     return -1;
 268
 269   return 0;
 270 }
 271
 272 static void
 273 gld${EMULATION_NAME}_after_allocation (void)
 274 {
 275   if (!link_info.relocatable)
 276     {
 277       /* Build a sorted list of input text sections, then use that to process
 278          the unwind table index.  */
 279       unsigned int list_size = 10;
 280       asection **sec_list = (asection **)
 281           xmalloc (list_size * sizeof (asection *));
 282       unsigned int sec_count = 0;
 283
 284       LANG_FOR_EACH_INPUT_STATEMENT (is)
 285         {
 286           bfd *abfd = is->the_bfd;
 287           asection *sec;
 288
 289           if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
 290             continue;
 291
 292           for (sec = abfd->sections; sec != NULL; sec = sec->next)
 293             {
 294               asection *out_sec = sec->output_section;
 295
 296               if (out_sec
 297                   && elf_section_data (sec)
 298                   && elf_section_type (sec) == SHT_PROGBITS
 299                   && (elf_section_flags (sec) & SHF_EXECINSTR) != 0
 300                   && (sec->flags & SEC_EXCLUDE) == 0
 301                   && sec->sec_info_type != ELF_INFO_TYPE_JUST_SYMS
 302                   && out_sec != bfd_abs_section_ptr)
 303                 {
 304                   if (sec_count == list_size)
 305                     {
 306                       list_size *= 2;
 307                       sec_list = (asection **)
 308                           xrealloc (sec_list, list_size * sizeof (asection *));
 309                     }
 310
 311                   sec_list[sec_count++] = sec;
 312                 }
 313             }
 314         }
 315
 316       qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma);
 317
 318       if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info,
 319                                            merge_exidx_entries))
 320         need_laying_out = 1;
 321
 322       free (sec_list);
 323     }
 324
 325   /* bfd_elf32_discard_info just plays with debugging sections,
 326      ie. doesn't affect any code, so we can delay resizing the
 327      sections.  It's likely we'll resize everything in the process of
 328      adding stubs.  */
 329   if (bfd_elf_discard_info (link_info.output_bfd, & link_info))
 330     need_laying_out = 1;
 331
 332   /* If generating a relocatable output file, then we don't
 333      have to examine the relocs.  */
 334   if (stub_file != NULL && !link_info.relocatable)
 335     {
 336       int  ret = elf32_arm_setup_section_lists (link_info.output_bfd, & link_info);
 337
 338       if (ret != 0)
 339         {
 340           if (ret < 0)
 341             {
 342               einfo ("%X%P: could not compute sections lists for stub generation: %E\n");
 343               return;
 344             }
 345
 346           lang_for_each_statement (build_section_lists);
 347
 348           /* Call into the BFD backend to do the real work.  */
 349           if (! elf32_arm_size_stubs (link_info.output_bfd,
 350                                       stub_file->the_bfd,
 351                                       & link_info,
 352                                       group_size,
 353                                       & elf32_arm_add_stub_section,
 354                                       & gldarm_layout_sections_again))
 355             {
 356               einfo ("%X%P: cannot size stub section: %E\n");
 357               return;
 358             }
 359         }
 360     }
 361
 362   if (need_laying_out != -1)
 363     gld${EMULATION_NAME}_map_segments (need_laying_out);
 364 }
 365
 366 static void
 367 gld${EMULATION_NAME}_finish (void)
 368 {
 369   struct bfd_link_hash_entry * h;
 370
 371   {
 372     LANG_FOR_EACH_INPUT_STATEMENT (is)
 373       {
 374         /* Figure out where VFP11 erratum veneers (and the labels returning
 375            from same) have been placed.  */
 376         bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info);
 377       }
 378   }
 379
 380   if (! link_info.relocatable)
 381     {
 382       /* Now build the linker stubs.  */
 383       if (stub_file->the_bfd->sections != NULL)
 384         {
 385           if (! elf32_arm_build_stubs (& link_info))
 386             einfo ("%X%P: can not build stubs: %E\n");
 387         }
 388     }
 389
 390   finish_default ();
 391
 392   if (thumb_entry_symbol)
 393     {
 394       h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
 395                                 FALSE, FALSE, TRUE);
 396     }
 397   else
 398     {
 399       struct elf_link_hash_entry * eh;
 400
 401       if (!entry_symbol.name)
 402         return;
 403
 404       h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
 405                                 FALSE, FALSE, TRUE);
 406       eh = (struct elf_link_hash_entry *)h;
 407       if (!h || eh->target_internal != ST_BRANCH_TO_THUMB)
 408         return;
 409     }
 410
 411
 412   if (h != (struct bfd_link_hash_entry *) NULL
 413       && (h->type == bfd_link_hash_defined
 414           || h->type == bfd_link_hash_defweak)
 415       && h->u.def.section->output_section != NULL)
 416     {
 417       static char buffer[32];
 418       bfd_vma val;
 419
 420       /* Special procesing is required for a Thumb entry symbol.  The
 421          bottom bit of its address must be set.  */
 422       val = (h->u.def.value
 423              + bfd_get_section_vma (link_info.output_bfd,
 424                                     h->u.def.section->output_section)
 425              + h->u.def.section->output_offset);
 426
 427       val |= 1;
 428
 429       /* Now convert this value into a string and store it in entry_symbol
 430          where the lang_finish() function will pick it up.  */
 431       buffer[0] = '0';
 432       buffer[1] = 'x';
 433
 434       sprintf_vma (buffer + 2, val);
 435
 436       if (thumb_entry_symbol != NULL && entry_symbol.name != NULL
 437           && entry_from_cmdline)
 438         einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
 439                thumb_entry_symbol, entry_symbol.name);
 440       entry_symbol.name = buffer;
 441     }
 442   else
 443     einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
 444            thumb_entry_symbol);
 445 }
 446
 447 /* This is a convenient point to tell BFD about target specific flags.
 448    After the output has been created, but before inputs are read.  */
 449 static void
 450 arm_elf_create_output_section_statements (void)
 451 {
 452   if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
 453     {
 454       /* The arm backend needs special fields in the output hash structure.
 455          These will only be created if the output format is an arm format,
 456          hence we do not support linking and changing output formats at the
 457          same time.  Use a link followed by objcopy to change output formats.  */
 458       einfo ("%F%X%P: error: Cannot change output format whilst linking ARM binaries.\n");
 459       return;
 460     }
 461
 462   bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info,
 463                                    target1_is_rel,
 464                                    target2_type, fix_v4bx, use_blx,
 465                                    vfp11_denorm_fix, no_enum_size_warning,
 466                                    no_wchar_size_warning,
 467                                    pic_veneer, fix_cortex_a8);
 468
 469   stub_file = lang_add_input_file ("linker stubs",
 470                                    lang_input_file_is_fake_enum,
 471                                    NULL);
 472   stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
 473   if (stub_file->the_bfd == NULL
 474       || ! bfd_set_arch_mach (stub_file->the_bfd,
 475                               bfd_get_arch (link_info.output_bfd),
 476                               bfd_get_mach (link_info.output_bfd)))
 477     {
 478       einfo ("%X%P: can not create BFD %E\n");
 479       return;
 480     }
 481
 482   stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
 483   ldlang_add_file (stub_file);
 484
 485   /* Also use the stub file for stubs placed in a single output section.  */
 486   bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info);
 487   bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info);
 488 }
 489
 490 /* Avoid processing the fake stub_file in vercheck, stat_needed and
 491    check_needed routines.  */
 492
 493 static void (*real_func) (lang_input_statement_type *);
 494
 495 static void arm_for_each_input_file_wrapper (lang_input_statement_type *l)
 496 {
 497   if (l != stub_file)
 498     (*real_func) (l);
 499 }
 500
 501 static void
 502 arm_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
 503 {
 504   real_func = func;
 505   lang_for_each_input_file (&arm_for_each_input_file_wrapper);
 506 }
 507
 508 #define lang_for_each_input_file arm_lang_for_each_input_file
 509
 510 EOF
 511
 512 # Define some shell vars to insert bits of code into the standard elf
 513 # parse_args and list_options functions.
 514 #
 515 PARSE_AND_LIST_PROLOGUE='
 516 #define OPTION_THUMB_ENTRY              301
 517 #define OPTION_BE8                      302
 518 #define OPTION_TARGET1_REL              303
 519 #define OPTION_TARGET1_ABS              304
 520 #define OPTION_TARGET2                  305
 521 #define OPTION_FIX_V4BX                 306
 522 #define OPTION_USE_BLX                  307
 523 #define OPTION_VFP11_DENORM_FIX         308
 524 #define OPTION_NO_ENUM_SIZE_WARNING     309
 525 #define OPTION_PIC_VENEER               310
 526 #define OPTION_FIX_V4BX_INTERWORKING    311
 527 #define OPTION_STUBGROUP_SIZE           312
 528 #define OPTION_NO_WCHAR_SIZE_WARNING    313
 529 #define OPTION_FIX_CORTEX_A8            314
 530 #define OPTION_NO_FIX_CORTEX_A8         315
 531 #define OPTION_NO_MERGE_EXIDX_ENTRIES   316
 532 '
 533
 534 PARSE_AND_LIST_SHORTOPTS=p
 535
 536 PARSE_AND_LIST_LONGOPTS='
 537   { "no-pipeline-knowledge", no_argument, NULL, '\'p\''},
 538   { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
 539   { "be8", no_argument, NULL, OPTION_BE8},
 540   { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL},
 541   { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS},
 542   { "target2", required_argument, NULL, OPTION_TARGET2},
 543   { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX},
 544   { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING},
 545   { "use-blx", no_argument, NULL, OPTION_USE_BLX},
 546   { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX},
 547   { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING},
 548   { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER},
 549   { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
 550   { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING},
 551   { "fix-cortex-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 },
 552   { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 },
 553   { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES },
 554 '
 555
 556 PARSE_AND_LIST_OPTIONS='
 557   fprintf (file, _("  --thumb-entry=<sym>         Set the entry point to be Thumb symbol <sym>\n"));
 558   fprintf (file, _("  --be8                       Output BE8 format image\n"));
 559   fprintf (file, _("  --target1-rel               Interpret R_ARM_TARGET1 as R_ARM_REL32\n"));
 560   fprintf (file, _("  --target1-abs               Interpret R_ARM_TARGET1 as R_ARM_ABS32\n"));
 561   fprintf (file, _("  --target2=<type>            Specify definition of R_ARM_TARGET2\n"));
 562   fprintf (file, _("  --fix-v4bx                  Rewrite BX rn as MOV pc, rn for ARMv4\n"));
 563   fprintf (file, _("  --fix-v4bx-interworking     Rewrite BX rn branch to ARMv4 interworking veneer\n"));
 564   fprintf (file, _("  --use-blx                   Enable use of BLX instructions\n"));
 565   fprintf (file, _("  --vfp11-denorm-fix          Specify how to fix VFP11 denorm erratum\n"));
 566   fprintf (file, _("  --no-enum-size-warning      Don'\''t warn about objects with incompatible\n"
 567                    "                                enum sizes\n"));
 568   fprintf (file, _("  --no-wchar-size-warning     Don'\''t warn about objects with incompatible"
 569                    "                                wchar_t sizes\n"));
 570   fprintf (file, _("  --pic-veneer                Always generate PIC interworking veneers\n"));
 571   fprintf (file, _("\
 572    --stub-group-size=N   Maximum size of a group of input sections that can be\n\
 573                            handled by one stub section.  A negative value\n\
 574                            locates all stubs after their branches (with a\n\
 575                            group size of -N), while a positive value allows\n\
 576                            two groups of input sections, one before, and one\n\
 577                            after each stub section.  Values of +/-1 indicate\n\
 578                            the linker should choose suitable defaults.\n"
 579                    ));
 580   fprintf (file, _("  --[no-]fix-cortex-a8        Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n"));
 581   fprintf (file, _("  --no-merge-exidx-entries    Disable merging exidx entries\n"));
 582
 583 '
 584
 585 PARSE_AND_LIST_ARGS_CASES='
 586     case '\'p\'':
 587       /* Only here for backwards compatibility.  */
 588       break;
 589
 590     case OPTION_THUMB_ENTRY:
 591       thumb_entry_symbol = optarg;
 592       break;
 593
 594     case OPTION_BE8:
 595       byteswap_code = 1;
 596       break;
 597
 598     case OPTION_TARGET1_REL:
 599       target1_is_rel = 1;
 600       break;
 601
 602     case OPTION_TARGET1_ABS:
 603       target1_is_rel = 0;
 604       break;
 605
 606     case OPTION_TARGET2:
 607       target2_type = optarg;
 608       break;
 609
 610     case OPTION_FIX_V4BX:
 611       fix_v4bx = 1;
 612       break;
 613
 614     case OPTION_FIX_V4BX_INTERWORKING:
 615       fix_v4bx = 2;
 616       break;
 617
 618     case OPTION_USE_BLX:
 619       use_blx = 1;
 620       break;
 621
 622     case OPTION_VFP11_DENORM_FIX:
 623       if (strcmp (optarg, "none") == 0)
 624         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
 625       else if (strcmp (optarg, "scalar") == 0)
 626         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
 627       else if (strcmp (optarg, "vector") == 0)
 628         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
 629       else
 630         einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg);
 631       break;
 632
 633     case OPTION_NO_ENUM_SIZE_WARNING:
 634       no_enum_size_warning = 1;
 635       break;
 636
 637     case OPTION_NO_WCHAR_SIZE_WARNING:
 638       no_wchar_size_warning = 1;
 639       break;
 640
 641     case OPTION_PIC_VENEER:
 642       pic_veneer = 1;
 643       break;
 644
 645     case OPTION_STUBGROUP_SIZE:
 646       {
 647         const char *end;
 648
 649         group_size = bfd_scan_vma (optarg, &end, 0);
 650         if (*end)
 651           einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
 652       }
 653       break;
 654
 655     case OPTION_FIX_CORTEX_A8:
 656       fix_cortex_a8 = 1;
 657       break;
 658
 659     case OPTION_NO_FIX_CORTEX_A8:
 660       fix_cortex_a8 = 0;
 661       break;
 662
 663    case OPTION_NO_MERGE_EXIDX_ENTRIES:
 664       merge_exidx_entries = 0;
 665
 666 '
 667
 668 # We have our own before_allocation etc. functions, but they call
 669 # the standard routines, so give them a different name.
 670 LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation
 671 LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
 672 LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements
 673
 674 # Replace the elf before_parse function with our own.
 675 LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse
 676
 677 # Call the extra arm-elf function
 678 LDEMUL_FINISH=gld${EMULATION_NAME}_finish