1 # This shell script emits a C file. -*- C -*-
2 # Copyright (C) 1991-2019 Free Software Foundation, Inc.
4 # This file is part of the GNU Binutils.
6 # This program 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.
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.
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,
22 # This file is sourced from elf.em, and defines extra arm-elf
25 test -z "$TARGET2_TYPE" && TARGET2_TYPE="rel"
31 static struct elf32_arm_params params =
33 NULL, /* thumb_entry_symbol */
34 0, /* byteswap_code */
35 0${TARGET1_IS_REL}, /* target1_is_rel */
36 "${TARGET2_TYPE}", /* target2_type */
39 BFD_ARM_VFP11_FIX_DEFAULT, /* vfp11_denorm_fix */
40 BFD_ARM_STM32L4XX_FIX_NONE, /* stm32l4xx_fix */
41 0, /* no_enum_size_warning */
42 0, /* no_wchar_size_warning */
44 -1, /* fix_cortex_a8 */
46 -1, /* merge_exidx_entries */
48 NULL /* in_implib_bfd */
50 static char *in_implib_filename = NULL;
53 gld${EMULATION_NAME}_before_parse (void)
55 #ifndef TARGET_ /* I.e., if not generic. */
56 ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
57 #endif /* not TARGET_ */
58 input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
59 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
60 config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
61 link_info.check_relocs_after_open_input = TRUE;
62 link_info.relro = DEFAULT_LD_Z_RELRO;
66 gld${EMULATION_NAME}_set_symbols (void)
68 /* PR 19106: The section resizing code in gldarmelf_after_allocation
69 is effectively the same as relaxation, so prevent early memory
70 region checks which produce bogus error messages.
71 Note - this test has nothing to do with symbols. It is just here
72 because this is the first emulation routine that is called after
73 the command line has been parsed. */
74 if (!bfd_link_relocatable (&link_info))
75 TARGET_ENABLE_RELAXATION;
79 arm_elf_before_allocation (void)
81 bfd_elf32_arm_set_byteswap_code (&link_info, params.byteswap_code);
83 /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary
84 due to architecture version. */
85 bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info);
87 /* Choose type of STM32L4XX erratum fix, or warn if specified fix is
88 unnecessary due to architecture version. */
89 bfd_elf32_arm_set_stm32l4xx_fix (link_info.output_bfd, &link_info);
91 /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */
92 bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
94 /* Ensure the output sections of veneers needing a dedicated one is not
96 bfd_elf32_arm_keep_private_stub_output_sections (&link_info);
98 /* We should be able to set the size of the interworking stub section. We
99 can't do it until later if we have dynamic sections, though. */
100 if (elf_hash_table (&link_info)->dynobj == NULL)
102 /* Here we rummage through the found bfds to collect glue information. */
103 LANG_FOR_EACH_INPUT_STATEMENT (is)
105 /* Initialise mapping tables for code/data. */
106 bfd_elf32_arm_init_maps (is->the_bfd);
108 if (!bfd_elf32_arm_process_before_allocation (is->the_bfd,
110 || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info)
111 || !bfd_elf32_arm_stm32l4xx_erratum_scan (is->the_bfd,
113 /* xgettext:c-format */
114 einfo (_("%P: errors encountered processing file %s\n"),
118 /* We have seen it all. Allocate it, and carry on. */
119 bfd_elf32_arm_allocate_interworking_sections (& link_info);
122 /* Call the standard elf routine. */
123 gld${EMULATION_NAME}_before_allocation ();
126 /* Fake input file for stubs. */
127 static lang_input_statement_type *stub_file;
129 /* Whether we need to call gldarm_layout_sections_again. */
130 static int need_laying_out = 0;
132 /* Maximum size of a group of input sections that can be handled by
133 one stub section. A value of +/-1 indicates the bfd back-end
134 should use a suitable default size. */
135 static bfd_signed_vma group_size = 1;
137 struct hook_stub_info
139 lang_statement_list_type add;
140 asection *input_section;
143 /* Traverse the linker tree to find the spot where the stub goes. */
146 hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
148 lang_statement_union_type *l;
151 for (; (l = *lp) != NULL; lp = &l->header.next)
153 switch (l->header.type)
155 case lang_constructors_statement_enum:
156 ret = hook_in_stub (info, &constructor_list.head);
161 case lang_output_section_statement_enum:
162 ret = hook_in_stub (info,
163 &l->output_section_statement.children.head);
168 case lang_wild_statement_enum:
169 ret = hook_in_stub (info, &l->wild_statement.children.head);
174 case lang_group_statement_enum:
175 ret = hook_in_stub (info, &l->group_statement.children.head);
180 case lang_input_section_enum:
181 if (l->input_section.section == info->input_section)
183 /* We've found our section. Insert the stub immediately
184 after its associated input section. */
185 *(info->add.tail) = l->header.next;
186 l->header.next = info->add.head;
191 case lang_data_statement_enum:
192 case lang_reloc_statement_enum:
193 case lang_object_symbols_statement_enum:
194 case lang_output_statement_enum:
195 case lang_target_statement_enum:
196 case lang_input_statement_enum:
197 case lang_assignment_statement_enum:
198 case lang_padding_statement_enum:
199 case lang_address_statement_enum:
200 case lang_fill_statement_enum:
212 /* Call-back for elf32_arm_size_stubs. */
214 /* Create a new stub section, and arrange for it to be linked
215 immediately after INPUT_SECTION. */
218 elf32_arm_add_stub_section (const char * stub_sec_name,
219 asection * output_section,
220 asection * after_input_section,
221 unsigned int alignment_power)
225 lang_output_section_statement_type *os;
226 struct hook_stub_info info;
228 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
229 | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
230 stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
231 stub_sec_name, flags);
232 if (stub_sec == NULL)
235 bfd_set_section_alignment (stub_sec, alignment_power);
237 os = lang_output_section_get (output_section);
239 info.input_section = after_input_section;
240 lang_list_init (&info.add);
241 lang_add_section (&info.add, stub_sec, NULL, os);
243 if (info.add.head == NULL)
246 if (after_input_section == NULL)
248 lang_statement_union_type **lp = &os->children.head;
249 lang_statement_union_type *l, *lprev = NULL;
251 for (; (l = *lp) != NULL; lp = &l->header.next, lprev = l);
254 lprev->header.next = info.add.head;
256 os->children.head = info.add.head;
262 if (hook_in_stub (&info, &os->children.head))
267 einfo (_("%X%P: can not make stub section: %E\n"));
271 /* Another call-back for elf_arm_size_stubs. */
274 gldarm_layout_sections_again (void)
276 /* If we have changed sizes of the stub sections, then we need
277 to recalculate all the section offsets. This may mean we need to
278 add even more stubs. */
279 ldelf_map_segments (TRUE);
280 need_laying_out = -1;
284 build_section_lists (lang_statement_union_type *statement)
286 if (statement->header.type == lang_input_section_enum)
288 asection *i = statement->input_section.section;
290 if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
291 && (i->flags & SEC_EXCLUDE) == 0
292 && i->output_section != NULL
293 && i->output_section->owner == link_info.output_bfd)
294 elf32_arm_next_input_section (& link_info, i);
299 compare_output_sec_vma (const void *a, const void *b)
301 asection *asec = *(asection **) a, *bsec = *(asection **) b;
302 asection *aout = asec->output_section, *bout = bsec->output_section;
305 /* If there's no output section for some reason, compare equal. */
309 avma = aout->vma + asec->output_offset;
310 bvma = bout->vma + bsec->output_offset;
314 else if (avma < bvma)
321 gld${EMULATION_NAME}_after_allocation (void)
325 /* Build a sorted list of input text sections, then use that to process
326 the unwind table index. */
327 unsigned int list_size = 10;
328 asection **sec_list = (asection **)
329 xmalloc (list_size * sizeof (asection *));
330 unsigned int sec_count = 0;
332 LANG_FOR_EACH_INPUT_STATEMENT (is)
334 bfd *abfd = is->the_bfd;
337 if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
340 for (sec = abfd->sections; sec != NULL; sec = sec->next)
342 asection *out_sec = sec->output_section;
345 && elf_section_data (sec)
346 && elf_section_type (sec) == SHT_PROGBITS
347 && (elf_section_flags (sec) & SHF_EXECINSTR) != 0
348 && (sec->flags & SEC_EXCLUDE) == 0
349 && sec->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
350 && out_sec != bfd_abs_section_ptr)
352 if (sec_count == list_size)
355 sec_list = (asection **)
356 xrealloc (sec_list, list_size * sizeof (asection *));
359 sec_list[sec_count++] = sec;
364 qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma);
366 if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info,
367 params.merge_exidx_entries))
372 /* bfd_elf32_discard_info just plays with debugging sections,
373 ie. doesn't affect any code, so we can delay resizing the
374 sections. It's likely we'll resize everything in the process of
376 ret = bfd_elf_discard_info (link_info.output_bfd, & link_info);
379 einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
385 /* If generating a relocatable output file, then we don't
386 have to examine the relocs. */
387 if (stub_file != NULL && !bfd_link_relocatable (&link_info))
389 ret = elf32_arm_setup_section_lists (link_info.output_bfd, &link_info);
394 einfo (_("%X%P: could not compute sections lists "
395 "for stub generation: %E\n"));
399 lang_for_each_statement (build_section_lists);
401 /* Call into the BFD backend to do the real work. */
402 if (! elf32_arm_size_stubs (link_info.output_bfd,
406 & elf32_arm_add_stub_section,
407 & gldarm_layout_sections_again))
409 einfo (_("%X%P: can not size stub section: %E\n"));
415 if (need_laying_out != -1)
416 ldelf_map_segments (need_laying_out);
420 gld${EMULATION_NAME}_finish (void)
422 struct bfd_link_hash_entry * h;
425 LANG_FOR_EACH_INPUT_STATEMENT (is)
427 /* Figure out where VFP11 erratum veneers (and the labels returning
428 from same) have been placed. */
429 bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info);
431 /* Figure out where STM32L4XX erratum veneers (and the labels returning
432 from them) have been placed. */
433 bfd_elf32_arm_stm32l4xx_fix_veneer_locations (is->the_bfd, &link_info);
437 if (!bfd_link_relocatable (&link_info))
439 /* Now build the linker stubs. */
440 if (stub_file->the_bfd->sections != NULL)
442 if (! elf32_arm_build_stubs (& link_info))
443 einfo (_("%X%P: can not build stubs: %E\n"));
449 if (params.thumb_entry_symbol)
451 h = bfd_link_hash_lookup (link_info.hash, params.thumb_entry_symbol,
456 struct elf_link_hash_entry * eh;
458 if (!entry_symbol.name)
461 h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
463 eh = (struct elf_link_hash_entry *)h;
464 if (!h || ARM_GET_SYM_BRANCH_TYPE (eh->target_internal)
465 != ST_BRANCH_TO_THUMB)
470 if (h != (struct bfd_link_hash_entry *) NULL
471 && (h->type == bfd_link_hash_defined
472 || h->type == bfd_link_hash_defweak)
473 && h->u.def.section->output_section != NULL)
475 static char buffer[32];
478 /* Special procesing is required for a Thumb entry symbol. The
479 bottom bit of its address must be set. */
480 val = (h->u.def.value
481 + bfd_section_vma (h->u.def.section->output_section)
482 + h->u.def.section->output_offset);
486 /* Now convert this value into a string and store it in entry_symbol
487 where the lang_finish() function will pick it up. */
491 sprintf_vma (buffer + 2, val);
493 if (params.thumb_entry_symbol != NULL && entry_symbol.name != NULL
494 && entry_from_cmdline)
495 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
496 params.thumb_entry_symbol, entry_symbol.name);
497 entry_symbol.name = buffer;
500 einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
504 /* This is a convenient point to tell BFD about target specific flags.
505 After the output has been created, but before inputs are read. */
507 arm_elf_create_output_section_statements (void)
509 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
511 /* The arm backend needs special fields in the output hash structure.
512 These will only be created if the output format is an arm format,
513 hence we do not support linking and changing output formats at the
514 same time. Use a link followed by objcopy to change output formats. */
515 einfo (_("%F%P: error: cannot change output format "
516 "whilst linking %s binaries\n"), "ARM");
520 if (in_implib_filename)
522 params.in_implib_bfd = bfd_openr (in_implib_filename,
523 bfd_get_target (link_info.output_bfd));
525 if (params.in_implib_bfd == NULL)
526 einfo (_("%F%P: %s: can't open: %E\n"), in_implib_filename);
528 if (!bfd_check_format (params.in_implib_bfd, bfd_object))
529 einfo (_("%F%P: %s: not a relocatable file: %E\n"), in_implib_filename);
532 bfd_elf32_arm_set_target_params (link_info.output_bfd, &link_info, ¶ms);
534 stub_file = lang_add_input_file ("linker stubs",
535 lang_input_file_is_fake_enum,
537 stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
538 if (stub_file->the_bfd == NULL
539 || ! bfd_set_arch_mach (stub_file->the_bfd,
540 bfd_get_arch (link_info.output_bfd),
541 bfd_get_mach (link_info.output_bfd)))
543 einfo (_("%F%P: can not create BFD: %E\n"));
547 stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
548 ldlang_add_file (stub_file);
550 /* Also use the stub file for stubs placed in a single output section. */
551 bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info);
552 bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info);
557 # Define some shell vars to insert bits of code into the standard elf
558 # parse_args and list_options functions.
560 PARSE_AND_LIST_PROLOGUE='
561 #define OPTION_THUMB_ENTRY 301
562 #define OPTION_BE8 302
563 #define OPTION_TARGET1_REL 303
564 #define OPTION_TARGET1_ABS 304
565 #define OPTION_TARGET2 305
566 #define OPTION_FIX_V4BX 306
567 #define OPTION_USE_BLX 307
568 #define OPTION_VFP11_DENORM_FIX 308
569 #define OPTION_NO_ENUM_SIZE_WARNING 309
570 #define OPTION_PIC_VENEER 310
571 #define OPTION_FIX_V4BX_INTERWORKING 311
572 #define OPTION_STUBGROUP_SIZE 312
573 #define OPTION_NO_WCHAR_SIZE_WARNING 313
574 #define OPTION_FIX_CORTEX_A8 314
575 #define OPTION_NO_FIX_CORTEX_A8 315
576 #define OPTION_NO_MERGE_EXIDX_ENTRIES 316
577 #define OPTION_FIX_ARM1176 317
578 #define OPTION_NO_FIX_ARM1176 318
579 #define OPTION_LONG_PLT 319
580 #define OPTION_STM32L4XX_FIX 320
581 #define OPTION_CMSE_IMPLIB 321
582 #define OPTION_IN_IMPLIB 322
585 PARSE_AND_LIST_SHORTOPTS=p
587 PARSE_AND_LIST_LONGOPTS='
588 { "no-pipeline-knowledge", no_argument, NULL, '\'p\''},
589 { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
590 { "be8", no_argument, NULL, OPTION_BE8},
591 { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL},
592 { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS},
593 { "target2", required_argument, NULL, OPTION_TARGET2},
594 { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX},
595 { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING},
596 { "use-blx", no_argument, NULL, OPTION_USE_BLX},
597 { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX},
598 { "fix-stm32l4xx-629360", optional_argument, NULL, OPTION_STM32L4XX_FIX},
599 { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING},
600 { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER},
601 { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
602 { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING},
603 { "fix-cortex-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 },
604 { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 },
605 { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES },
606 { "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 },
607 { "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 },
608 { "long-plt", no_argument, NULL, OPTION_LONG_PLT },
609 { "cmse-implib", no_argument, NULL, OPTION_CMSE_IMPLIB },
610 { "in-implib", required_argument, NULL, OPTION_IN_IMPLIB },
613 PARSE_AND_LIST_OPTIONS='
614 fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
615 fprintf (file, _(" --be8 Output BE8 format image\n"));
616 fprintf (file, _(" --target1-rel Interpret R_ARM_TARGET1 as R_ARM_REL32\n"));
617 fprintf (file, _(" --target1-abs Interpret R_ARM_TARGET1 as R_ARM_ABS32\n"));
618 fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n"));
619 fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n"));
620 fprintf (file, _(" --fix-v4bx-interworking Rewrite BX rn branch to ARMv4 interworking veneer\n"));
621 fprintf (file, _(" --use-blx Enable use of BLX instructions\n"));
622 fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n"));
623 fprintf (file, _(" --fix-stm32l4xx-629360 Specify how to fix STM32L4XX 629360 erratum\n"));
624 fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible\n"
626 fprintf (file, _(" --no-wchar-size-warning Don'\''t warn about objects with incompatible\n"
627 " wchar_t sizes\n"));
628 fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n"));
629 fprintf (file, _(" --long-plt Generate long .plt entries\n"
630 " to handle large .plt/.got displacements\n"));
631 fprintf (file, _(" --cmse-implib Make import library to be a secure gateway import\n"
632 " library as per ARMv8-M Security Extensions\n"));
633 fprintf (file, _(" --in-implib Import library whose symbols address must\n"
634 " remain stable\n"));
636 --stub-group-size=N Maximum size of a group of input sections that\n\
637 can be handled by one stub section. A negative\n\
638 value locates all stubs after their branches\n\
639 (with a group size of -N), while a positive\n\
640 value allows two groups of input sections, one\n\
641 before, and one after each stub section.\n\
642 Values of +/-1 indicate the linker should\n\
643 choose suitable defaults.\n"));
644 fprintf (file, _(" --[no-]fix-cortex-a8 Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n"));
645 fprintf (file, _(" --no-merge-exidx-entries Disable merging exidx entries\n"));
646 fprintf (file, _(" --[no-]fix-arm1176 Disable/enable ARM1176 BLX immediate erratum fix\n"));
649 PARSE_AND_LIST_ARGS_CASES='
651 /* Only here for backwards compatibility. */
654 case OPTION_THUMB_ENTRY:
655 params.thumb_entry_symbol = optarg;
659 params.byteswap_code = 1;
662 case OPTION_TARGET1_REL:
663 params.target1_is_rel = 1;
666 case OPTION_TARGET1_ABS:
667 params.target1_is_rel = 0;
671 params.target2_type = optarg;
674 case OPTION_FIX_V4BX:
678 case OPTION_FIX_V4BX_INTERWORKING:
686 case OPTION_VFP11_DENORM_FIX:
687 if (strcmp (optarg, "none") == 0)
688 params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
689 else if (strcmp (optarg, "scalar") == 0)
690 params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
691 else if (strcmp (optarg, "vector") == 0)
692 params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
694 einfo (_("%P: unrecognized VFP11 fix type '\''%s'\''\n"), optarg);
697 case OPTION_STM32L4XX_FIX:
699 params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
700 else if (strcmp (optarg, "none") == 0)
701 params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE;
702 else if (strcmp (optarg, "default") == 0)
703 params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
704 else if (strcmp (optarg, "all") == 0)
705 params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_ALL;
707 einfo (_("%P: unrecognized STM32L4XX fix type '\''%s'\''\n"), optarg);
710 case OPTION_NO_ENUM_SIZE_WARNING:
711 params.no_enum_size_warning = 1;
714 case OPTION_NO_WCHAR_SIZE_WARNING:
715 params.no_wchar_size_warning = 1;
718 case OPTION_PIC_VENEER:
719 params.pic_veneer = 1;
722 case OPTION_STUBGROUP_SIZE:
726 group_size = bfd_scan_vma (optarg, &end, 0);
728 einfo (_("%F%P: invalid number `%s'\''\n"), optarg);
732 case OPTION_FIX_CORTEX_A8:
733 params.fix_cortex_a8 = 1;
736 case OPTION_NO_FIX_CORTEX_A8:
737 params.fix_cortex_a8 = 0;
740 case OPTION_NO_MERGE_EXIDX_ENTRIES:
741 params.merge_exidx_entries = 0;
744 case OPTION_FIX_ARM1176:
745 params.fix_arm1176 = 1;
748 case OPTION_NO_FIX_ARM1176:
749 params.fix_arm1176 = 0;
752 case OPTION_LONG_PLT:
753 bfd_elf32_arm_use_long_plt ();
756 case OPTION_CMSE_IMPLIB:
757 params.cmse_implib = 1;
760 case OPTION_IN_IMPLIB:
761 in_implib_filename = optarg;
765 # We have our own before_allocation etc. functions, but they call
766 # the standard routines, so give them a different name.
767 LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation
768 LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
769 LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements
771 # Replace the elf before_parse function with our own.
772 LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse
773 LDEMUL_SET_SYMBOLS=gld"${EMULATION_NAME}"_set_symbols
775 # Call the extra arm-elf function
776 LDEMUL_FINISH=gld${EMULATION_NAME}_finish