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, 2010, 2011, 2012
   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 = "${TARGET2_TYPE}";
  37 static int fix_v4bx = 0;
  38 static int use_blx = 0;
  39 static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT;
  40 static int fix_cortex_a8 = -1;
  41 static int no_enum_size_warning = 0;
  42 static int no_wchar_size_warning = 0;
  43 static int pic_veneer = 0;
  44 static int merge_exidx_entries = -1;
  45 static int fix_arm1176 = 1;
  46
  47 static void
  48 gld${EMULATION_NAME}_before_parse (void)
  49 {
  50 #ifndef TARGET_                 /* I.e., if not generic.  */
  51   ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
  52 #endif /* not TARGET_ */
  53   input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
  54   config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
  55 }
  56
  57 static void
  58 arm_elf_before_allocation (void)
  59 {
  60   bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code);
  61
  62   /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary
  63      due to architecture version.  */
  64   bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info);
  65
  66   /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified.  */
  67   bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
  68
  69   /* We should be able to set the size of the interworking stub section.  We
  70      can't do it until later if we have dynamic sections, though.  */
  71   if (elf_hash_table (&link_info)->dynobj == NULL)
  72     {
  73       /* Here we rummage through the found bfds to collect glue information.  */
  74       LANG_FOR_EACH_INPUT_STATEMENT (is)
  75         {
  76           /* Initialise mapping tables for code/data.  */
  77           bfd_elf32_arm_init_maps (is->the_bfd);
  78
  79           if (!bfd_elf32_arm_process_before_allocation (is->the_bfd,
  80                                                         &link_info)
  81               || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info))
  82             /* xgettext:c-format */
  83             einfo (_("Errors encountered processing file %s"), is->filename);
  84         }
  85
  86       /* We have seen it all.  Allocate it, and carry on.  */
  87       bfd_elf32_arm_allocate_interworking_sections (& link_info);
  88     }
  89
  90   /* Call the standard elf routine.  */
  91   gld${EMULATION_NAME}_before_allocation ();
  92 }
  93
  94 /* Fake input file for stubs.  */
  95 static lang_input_statement_type *stub_file;
  96
  97 /* Whether we need to call gldarm_layout_sections_again.  */
  98 static int need_laying_out = 0;
  99
 100 /* Maximum size of a group of input sections that can be handled by
 101    one stub section.  A value of +/-1 indicates the bfd back-end
 102    should use a suitable default size.  */
 103 static bfd_signed_vma group_size = 1;
 104
 105 struct hook_stub_info
 106 {
 107   lang_statement_list_type add;
 108   asection *input_section;
 109 };
 110
 111 /* Traverse the linker tree to find the spot where the stub goes.  */
 112
 113 static bfd_boolean
 114 hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
 115 {
 116   lang_statement_union_type *l;
 117   bfd_boolean ret;
 118
 119   for (; (l = *lp) != NULL; lp = &l->header.next)
 120     {
 121       switch (l->header.type)
 122         {
 123         case lang_constructors_statement_enum:
 124           ret = hook_in_stub (info, &constructor_list.head);
 125           if (ret)
 126             return ret;
 127           break;
 128
 129         case lang_output_section_statement_enum:
 130           ret = hook_in_stub (info,
 131                               &l->output_section_statement.children.head);
 132           if (ret)
 133             return ret;
 134           break;
 135
 136         case lang_wild_statement_enum:
 137           ret = hook_in_stub (info, &l->wild_statement.children.head);
 138           if (ret)
 139             return ret;
 140           break;
 141
 142         case lang_group_statement_enum:
 143           ret = hook_in_stub (info, &l->group_statement.children.head);
 144           if (ret)
 145             return ret;
 146           break;
 147
 148         case lang_input_section_enum:
 149           if (l->input_section.section == info->input_section)
 150             {
 151               /* We've found our section.  Insert the stub immediately
 152                  after its associated input section.  */
 153               *(info->add.tail) = l->header.next;
 154               l->header.next = info->add.head;
 155               return TRUE;
 156             }
 157           break;
 158
 159         case lang_data_statement_enum:
 160         case lang_reloc_statement_enum:
 161         case lang_object_symbols_statement_enum:
 162         case lang_output_statement_enum:
 163         case lang_target_statement_enum:
 164         case lang_input_statement_enum:
 165         case lang_assignment_statement_enum:
 166         case lang_padding_statement_enum:
 167         case lang_address_statement_enum:
 168         case lang_fill_statement_enum:
 169           break;
 170
 171         default:
 172           FAIL ();
 173           break;
 174         }
 175     }
 176   return FALSE;
 177 }
 178
 179
 180 /* Call-back for elf32_arm_size_stubs.  */
 181
 182 /* Create a new stub section, and arrange for it to be linked
 183    immediately after INPUT_SECTION.  */
 184
 185 static asection *
 186 elf32_arm_add_stub_section (const char *stub_sec_name,
 187                             asection *input_section)
 188 {
 189   asection *stub_sec;
 190   flagword flags;
 191   asection *output_section;
 192   const char *secname;
 193   lang_output_section_statement_type *os;
 194   struct hook_stub_info info;
 195
 196   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
 197            | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
 198   stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
 199                                                  stub_sec_name, flags);
 200   if (stub_sec == NULL)
 201     goto err_ret;
 202
 203   bfd_set_section_alignment (stub_file->the_bfd, stub_sec, 3);
 204
 205   output_section = input_section->output_section;
 206   secname = bfd_get_section_name (output_section->owner, output_section);
 207   os = lang_output_section_find (secname);
 208
 209   info.input_section = input_section;
 210   lang_list_init (&info.add);
 211   lang_add_section (&info.add, stub_sec, NULL, os);
 212
 213   if (info.add.head == NULL)
 214     goto err_ret;
 215
 216   if (hook_in_stub (&info, &os->children.head))
 217     return stub_sec;
 218
 219  err_ret:
 220   einfo ("%X%P: can not make stub section: %E\n");
 221   return NULL;
 222 }
 223
 224 /* Another call-back for elf_arm_size_stubs.  */
 225
 226 static void
 227 gldarm_layout_sections_again (void)
 228 {
 229   /* If we have changed sizes of the stub sections, then we need
 230      to recalculate all the section offsets.  This may mean we need to
 231      add even more stubs.  */
 232   gld${EMULATION_NAME}_map_segments (TRUE);
 233   need_laying_out = -1;
 234 }
 235
 236 static void
 237 build_section_lists (lang_statement_union_type *statement)
 238 {
 239   if (statement->header.type == lang_input_section_enum)
 240     {
 241       asection *i = statement->input_section.section;
 242
 243       if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
 244           && (i->flags & SEC_EXCLUDE) == 0
 245           && i->output_section != NULL
 246           && i->output_section->owner == link_info.output_bfd)
 247         elf32_arm_next_input_section (& link_info, i);
 248     }
 249 }
 250
 251 static int
 252 compare_output_sec_vma (const void *a, const void *b)
 253 {
 254   asection *asec = *(asection **) a, *bsec = *(asection **) b;
 255   asection *aout = asec->output_section, *bout = bsec->output_section;
 256   bfd_vma avma, bvma;
 257
 258   /* If there's no output section for some reason, compare equal.  */
 259   if (!aout || !bout)
 260     return 0;
 261
 262   avma = aout->vma + asec->output_offset;
 263   bvma = bout->vma + bsec->output_offset;
 264
 265   if (avma > bvma)
 266     return 1;
 267   else if (avma < bvma)
 268     return -1;
 269
 270   return 0;
 271 }
 272
 273 static void
 274 gld${EMULATION_NAME}_after_allocation (void)
 275 {
 276   if (!link_info.relocatable)
 277     {
 278       /* Build a sorted list of input text sections, then use that to process
 279          the unwind table index.  */
 280       unsigned int list_size = 10;
 281       asection **sec_list = (asection **)
 282           xmalloc (list_size * sizeof (asection *));
 283       unsigned int sec_count = 0;
 284
 285       LANG_FOR_EACH_INPUT_STATEMENT (is)
 286         {
 287           bfd *abfd = is->the_bfd;
 288           asection *sec;
 289
 290           if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
 291             continue;
 292
 293           for (sec = abfd->sections; sec != NULL; sec = sec->next)
 294             {
 295               asection *out_sec = sec->output_section;
 296
 297               if (out_sec
 298                   && elf_section_data (sec)
 299                   && elf_section_type (sec) == SHT_PROGBITS
 300                   && (elf_section_flags (sec) & SHF_EXECINSTR) != 0
 301                   && (sec->flags & SEC_EXCLUDE) == 0
 302                   && sec->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
 303                   && out_sec != bfd_abs_section_ptr)
 304                 {
 305                   if (sec_count == list_size)
 306                     {
 307                       list_size *= 2;
 308                       sec_list = (asection **)
 309                           xrealloc (sec_list, list_size * sizeof (asection *));
 310                     }
 311
 312                   sec_list[sec_count++] = sec;
 313                 }
 314             }
 315         }
 316
 317       qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma);
 318
 319       if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info,
 320                                            merge_exidx_entries))
 321         need_laying_out = 1;
 322
 323       free (sec_list);
 324     }
 325
 326   /* bfd_elf32_discard_info just plays with debugging sections,
 327      ie. doesn't affect any code, so we can delay resizing the
 328      sections.  It's likely we'll resize everything in the process of
 329      adding stubs.  */
 330   if (bfd_elf_discard_info (link_info.output_bfd, & link_info))
 331     need_laying_out = 1;
 332
 333   /* If generating a relocatable output file, then we don't
 334      have to examine the relocs.  */
 335   if (stub_file != NULL && !link_info.relocatable)
 336     {
 337       int  ret = elf32_arm_setup_section_lists (link_info.output_bfd, & link_info);
 338
 339       if (ret != 0)
 340         {
 341           if (ret < 0)
 342             {
 343               einfo ("%X%P: could not compute sections lists for stub generation: %E\n");
 344               return;
 345             }
 346
 347           lang_for_each_statement (build_section_lists);
 348
 349           /* Call into the BFD backend to do the real work.  */
 350           if (! elf32_arm_size_stubs (link_info.output_bfd,
 351                                       stub_file->the_bfd,
 352                                       & link_info,
 353                                       group_size,
 354                                       & elf32_arm_add_stub_section,
 355                                       & gldarm_layout_sections_again))
 356             {
 357               einfo ("%X%P: cannot size stub section: %E\n");
 358               return;
 359             }
 360         }
 361     }
 362
 363   if (need_laying_out != -1)
 364     gld${EMULATION_NAME}_map_segments (need_laying_out);
 365 }
 366
 367 static void
 368 gld${EMULATION_NAME}_finish (void)
 369 {
 370   struct bfd_link_hash_entry * h;
 371
 372   {
 373     LANG_FOR_EACH_INPUT_STATEMENT (is)
 374       {
 375         /* Figure out where VFP11 erratum veneers (and the labels returning
 376            from same) have been placed.  */
 377         bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info);
 378       }
 379   }
 380
 381   if (! link_info.relocatable)
 382     {
 383       /* Now build the linker stubs.  */
 384       if (stub_file->the_bfd->sections != NULL)
 385         {
 386           if (! elf32_arm_build_stubs (& link_info))
 387             einfo ("%X%P: can not build stubs: %E\n");
 388         }
 389     }
 390
 391   finish_default ();
 392
 393   if (thumb_entry_symbol)
 394     {
 395       h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
 396                                 FALSE, FALSE, TRUE);
 397     }
 398   else
 399     {
 400       struct elf_link_hash_entry * eh;
 401
 402       if (!entry_symbol.name)
 403         return;
 404
 405       h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
 406                                 FALSE, FALSE, TRUE);
 407       eh = (struct elf_link_hash_entry *)h;
 408       if (!h || eh->target_internal != ST_BRANCH_TO_THUMB)
 409         return;
 410     }
 411
 412
 413   if (h != (struct bfd_link_hash_entry *) NULL
 414       && (h->type == bfd_link_hash_defined
 415           || h->type == bfd_link_hash_defweak)
 416       && h->u.def.section->output_section != NULL)
 417     {
 418       static char buffer[32];
 419       bfd_vma val;
 420
 421       /* Special procesing is required for a Thumb entry symbol.  The
 422          bottom bit of its address must be set.  */
 423       val = (h->u.def.value
 424              + bfd_get_section_vma (link_info.output_bfd,
 425                                     h->u.def.section->output_section)
 426              + h->u.def.section->output_offset);
 427
 428       val |= 1;
 429
 430       /* Now convert this value into a string and store it in entry_symbol
 431          where the lang_finish() function will pick it up.  */
 432       buffer[0] = '0';
 433       buffer[1] = 'x';
 434
 435       sprintf_vma (buffer + 2, val);
 436
 437       if (thumb_entry_symbol != NULL && entry_symbol.name != NULL
 438           && entry_from_cmdline)
 439         einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
 440                thumb_entry_symbol, entry_symbol.name);
 441       entry_symbol.name = buffer;
 442     }
 443   else
 444     einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
 445            thumb_entry_symbol);
 446 }
 447
 448 /* This is a convenient point to tell BFD about target specific flags.
 449    After the output has been created, but before inputs are read.  */
 450 static void
 451 arm_elf_create_output_section_statements (void)
 452 {
 453   if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
 454     {
 455       /* The arm backend needs special fields in the output hash structure.
 456          These will only be created if the output format is an arm format,
 457          hence we do not support linking and changing output formats at the
 458          same time.  Use a link followed by objcopy to change output formats.  */
 459       einfo ("%F%X%P: error: Cannot change output format whilst linking ARM binaries.\n");
 460       return;
 461     }
 462
 463   bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info,
 464                                    target1_is_rel,
 465                                    target2_type, fix_v4bx, use_blx,
 466                                    vfp11_denorm_fix, no_enum_size_warning,
 467                                    no_wchar_size_warning,
 468                                    pic_veneer, fix_cortex_a8,
 469                                    fix_arm1176);
 470
 471   stub_file = lang_add_input_file ("linker stubs",
 472                                    lang_input_file_is_fake_enum,
 473                                    NULL);
 474   stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
 475   if (stub_file->the_bfd == NULL
 476       || ! bfd_set_arch_mach (stub_file->the_bfd,
 477                               bfd_get_arch (link_info.output_bfd),
 478                               bfd_get_mach (link_info.output_bfd)))
 479     {
 480       einfo ("%X%P: can not create BFD %E\n");
 481       return;
 482     }
 483
 484   stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
 485   ldlang_add_file (stub_file);
 486
 487   /* Also use the stub file for stubs placed in a single output section.  */
 488   bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info);
 489   bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info);
 490 }
 491
 492 /* Avoid processing the fake stub_file in vercheck, stat_needed and
 493    check_needed routines.  */
 494
 495 static void (*real_func) (lang_input_statement_type *);
 496
 497 static void arm_for_each_input_file_wrapper (lang_input_statement_type *l)
 498 {
 499   if (l != stub_file)
 500     (*real_func) (l);
 501 }
 502
 503 static void
 504 arm_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
 505 {
 506   real_func = func;
 507   lang_for_each_input_file (&arm_for_each_input_file_wrapper);
 508 }
 509
 510 #define lang_for_each_input_file arm_lang_for_each_input_file
 511
 512 EOF
 513
 514 # Define some shell vars to insert bits of code into the standard elf
 515 # parse_args and list_options functions.
 516 #
 517 PARSE_AND_LIST_PROLOGUE='
 518 #define OPTION_THUMB_ENTRY              301
 519 #define OPTION_BE8                      302
 520 #define OPTION_TARGET1_REL              303
 521 #define OPTION_TARGET1_ABS              304
 522 #define OPTION_TARGET2                  305
 523 #define OPTION_FIX_V4BX                 306
 524 #define OPTION_USE_BLX                  307
 525 #define OPTION_VFP11_DENORM_FIX         308
 526 #define OPTION_NO_ENUM_SIZE_WARNING     309
 527 #define OPTION_PIC_VENEER               310
 528 #define OPTION_FIX_V4BX_INTERWORKING    311
 529 #define OPTION_STUBGROUP_SIZE           312
 530 #define OPTION_NO_WCHAR_SIZE_WARNING    313
 531 #define OPTION_FIX_CORTEX_A8            314
 532 #define OPTION_NO_FIX_CORTEX_A8         315
 533 #define OPTION_NO_MERGE_EXIDX_ENTRIES   316
 534 #define OPTION_FIX_ARM1176              317
 535 #define OPTION_NO_FIX_ARM1176           318
 536 '
 537
 538 PARSE_AND_LIST_SHORTOPTS=p
 539
 540 PARSE_AND_LIST_LONGOPTS='
 541   { "no-pipeline-knowledge", no_argument, NULL, '\'p\''},
 542   { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
 543   { "be8", no_argument, NULL, OPTION_BE8},
 544   { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL},
 545   { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS},
 546   { "target2", required_argument, NULL, OPTION_TARGET2},
 547   { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX},
 548   { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING},
 549   { "use-blx", no_argument, NULL, OPTION_USE_BLX},
 550   { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX},
 551   { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING},
 552   { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER},
 553   { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
 554   { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING},
 555   { "fix-cortex-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 },
 556   { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 },
 557   { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES },
 558   { "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 },
 559   { "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 },
 560 '
 561
 562 PARSE_AND_LIST_OPTIONS='
 563   fprintf (file, _("  --thumb-entry=<sym>         Set the entry point to be Thumb symbol <sym>\n"));
 564   fprintf (file, _("  --be8                       Output BE8 format image\n"));
 565   fprintf (file, _("  --target1-rel               Interpret R_ARM_TARGET1 as R_ARM_REL32\n"));
 566   fprintf (file, _("  --target1-abs               Interpret R_ARM_TARGET1 as R_ARM_ABS32\n"));
 567   fprintf (file, _("  --target2=<type>            Specify definition of R_ARM_TARGET2\n"));
 568   fprintf (file, _("  --fix-v4bx                  Rewrite BX rn as MOV pc, rn for ARMv4\n"));
 569   fprintf (file, _("  --fix-v4bx-interworking     Rewrite BX rn branch to ARMv4 interworking veneer\n"));
 570   fprintf (file, _("  --use-blx                   Enable use of BLX instructions\n"));
 571   fprintf (file, _("  --vfp11-denorm-fix          Specify how to fix VFP11 denorm erratum\n"));
 572   fprintf (file, _("  --no-enum-size-warning      Don'\''t warn about objects with incompatible\n"
 573                    "                                enum sizes\n"));
 574   fprintf (file, _("  --no-wchar-size-warning     Don'\''t warn about objects with incompatible\n"
 575                    "                                wchar_t sizes\n"));
 576   fprintf (file, _("  --pic-veneer                Always generate PIC interworking veneers\n"));
 577   fprintf (file, _("\
 578   --stub-group-size=N         Maximum size of a group of input sections that\n\
 579                                can be handled by one stub section.  A negative\n\
 580                                value locates all stubs after their branches\n\
 581                                (with a group size of -N), while a positive\n\
 582                                value allows two groups of input sections, one\n\
 583                                before, and one after each stub section.\n\
 584                                Values of +/-1 indicate the linker should\n\
 585                                choose suitable defaults.\n"));
 586   fprintf (file, _("  --[no-]fix-cortex-a8        Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n"));
 587   fprintf (file, _("  --no-merge-exidx-entries    Disable merging exidx entries\n"));
 588   fprintf (file, _("  --[no-]fix-arm1176          Disable/enable ARM1176 BLX immediate erratum fix\n"));
 589 '
 590
 591 PARSE_AND_LIST_ARGS_CASES='
 592     case '\'p\'':
 593       /* Only here for backwards compatibility.  */
 594       break;
 595
 596     case OPTION_THUMB_ENTRY:
 597       thumb_entry_symbol = optarg;
 598       break;
 599
 600     case OPTION_BE8:
 601       byteswap_code = 1;
 602       break;
 603
 604     case OPTION_TARGET1_REL:
 605       target1_is_rel = 1;
 606       break;
 607
 608     case OPTION_TARGET1_ABS:
 609       target1_is_rel = 0;
 610       break;
 611
 612     case OPTION_TARGET2:
 613       target2_type = optarg;
 614       break;
 615
 616     case OPTION_FIX_V4BX:
 617       fix_v4bx = 1;
 618       break;
 619
 620     case OPTION_FIX_V4BX_INTERWORKING:
 621       fix_v4bx = 2;
 622       break;
 623
 624     case OPTION_USE_BLX:
 625       use_blx = 1;
 626       break;
 627
 628     case OPTION_VFP11_DENORM_FIX:
 629       if (strcmp (optarg, "none") == 0)
 630         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
 631       else if (strcmp (optarg, "scalar") == 0)
 632         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
 633       else if (strcmp (optarg, "vector") == 0)
 634         vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
 635       else
 636         einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg);
 637       break;
 638
 639     case OPTION_NO_ENUM_SIZE_WARNING:
 640       no_enum_size_warning = 1;
 641       break;
 642
 643     case OPTION_NO_WCHAR_SIZE_WARNING:
 644       no_wchar_size_warning = 1;
 645       break;
 646
 647     case OPTION_PIC_VENEER:
 648       pic_veneer = 1;
 649       break;
 650
 651     case OPTION_STUBGROUP_SIZE:
 652       {
 653         const char *end;
 654
 655         group_size = bfd_scan_vma (optarg, &end, 0);
 656         if (*end)
 657           einfo (_("%P%F: invalid number `%s'\''\n"), optarg);
 658       }
 659       break;
 660
 661     case OPTION_FIX_CORTEX_A8:
 662       fix_cortex_a8 = 1;
 663       break;
 664
 665     case OPTION_NO_FIX_CORTEX_A8:
 666       fix_cortex_a8 = 0;
 667       break;
 668
 669    case OPTION_NO_MERGE_EXIDX_ENTRIES:
 670       merge_exidx_entries = 0;
 671       break;
 672
 673    case OPTION_FIX_ARM1176:
 674       fix_arm1176 = 1;
 675       break;
 676
 677    case OPTION_NO_FIX_ARM1176:
 678       fix_arm1176 = 0;
 679       break;
 680 '
 681
 682 # We have our own before_allocation etc. functions, but they call
 683 # the standard routines, so give them a different name.
 684 LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation
 685 LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
 686 LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements
 687
 688 # Replace the elf before_parse function with our own.
 689 LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse
 690
 691 # Call the extra arm-elf function
 692 LDEMUL_FINISH=gld${EMULATION_NAME}_finish