| # This shell script emits a C file. -*- C -*- |
| # Copyright (C) 2009-2025 Free Software Foundation, Inc. |
| # Contributed by ARM Ltd. |
| # |
| # This file is part of the GNU Binutils. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the license, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; see the file COPYING3. If not, |
| # see <http://www.gnu.org/licenses/>. |
| # |
| |
| # This file is sourced from elf.em, and defines extra aarch64-elf |
| # specific routines. |
| # |
| fragment <<EOF |
| |
| #include "ldctor.h" |
| #include "elf/aarch64.h" |
| #include "elfxx-aarch64.h" |
| |
| static int no_enum_size_warning = 0; |
| static int no_wchar_size_warning = 0; |
| static int pic_veneer = 0; |
| static int fix_erratum_835769 = 0; |
| static erratum_84319_opts fix_erratum_843419 = ERRAT_NONE; |
| static int no_apply_dynamic_relocs = 0; |
| static aarch64_protection_opts sw_protections = { |
| .plt_type = PLT_NORMAL, |
| .bti_report = MARKING_WARN, |
| .gcs_type = GCS_IMPLICIT, |
| .gcs_report = MARKING_WARN, |
| .gcs_report_dynamic = MARKING_UNSET, |
| }; |
| |
| static aarch64_memtag_opts memtag_opts = { |
| .memtag_mode = AARCH64_MEMTAG_MODE_NONE, |
| .memtag_stack = 0, |
| }; |
| |
| #define COMPILE_TIME_STRLEN(s) \ |
| (sizeof(s) - 1) |
| |
| static void |
| gld${EMULATION_NAME}_before_parse (void) |
| { |
| #ifndef TARGET_ /* I.e., if not generic. */ |
| ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown); |
| #endif /* not TARGET_ */ |
| input_flags.dynamic = ${DYNAMIC_LINK-true}; |
| config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`; |
| config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo true ; else echo false ; fi`; |
| link_info.check_relocs_after_open_input = true; |
| EOF |
| if test -n "$COMMONPAGESIZE"; then |
| fragment <<EOF |
| link_info.relro = DEFAULT_LD_Z_RELRO; |
| EOF |
| fi |
| fragment <<EOF |
| link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE; |
| link_info.warn_execstack = DEFAULT_LD_WARN_EXECSTACK; |
| link_info.no_warn_rwx_segments = ! DEFAULT_LD_WARN_RWX_SEGMENTS; |
| link_info.default_execstack = DEFAULT_LD_EXECSTACK; |
| } |
| |
| static void |
| aarch64_elf_before_allocation (void) |
| { |
| /* We should be able to set the size of the interworking stub section. We |
| can't do it until later if we have dynamic sections, though. */ |
| if (! elf_hash_table (&link_info)->dynamic_sections_created) |
| { |
| /* Here we rummage through the found bfds to collect information. */ |
| LANG_FOR_EACH_INPUT_STATEMENT (is) |
| { |
| /* Initialise mapping tables for code/data. */ |
| bfd_elf${ELFSIZE}_aarch64_init_maps (is->the_bfd); |
| } |
| } |
| |
| /* Call the standard elf routine. */ |
| gld${EMULATION_NAME}_before_allocation (); |
| } |
| |
| /* Fake input file for stubs. */ |
| static lang_input_statement_type *stub_file; |
| |
| /* Whether we need to call gldarm_layout_sections_again. */ |
| static int need_laying_out = 0; |
| |
| /* Maximum size of a group of input sections that can be handled by |
| one stub section. A value of +/-1 indicates the bfd back-end |
| should use a suitable default size. */ |
| static bfd_signed_vma group_size = 1; |
| |
| struct hook_stub_info |
| { |
| lang_statement_list_type add; |
| asection *input_section; |
| }; |
| |
| /* Traverse the linker tree to find the spot where the stub goes. */ |
| |
| static bool |
| hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) |
| { |
| lang_statement_union_type *l; |
| bool ret; |
| |
| for (; (l = *lp) != NULL; lp = &l->header.next) |
| { |
| switch (l->header.type) |
| { |
| case lang_constructors_statement_enum: |
| ret = hook_in_stub (info, &constructor_list.head); |
| if (ret) |
| return ret; |
| break; |
| |
| case lang_output_section_statement_enum: |
| ret = hook_in_stub (info, |
| &l->output_section_statement.children.head); |
| if (ret) |
| return ret; |
| break; |
| |
| case lang_wild_statement_enum: |
| ret = hook_in_stub (info, &l->wild_statement.children.head); |
| if (ret) |
| return ret; |
| break; |
| |
| case lang_group_statement_enum: |
| ret = hook_in_stub (info, &l->group_statement.children.head); |
| if (ret) |
| return ret; |
| break; |
| |
| case lang_input_section_enum: |
| if (l->input_section.section == info->input_section) |
| { |
| /* We've found our section. Insert the stub immediately |
| after its associated input section. */ |
| *(info->add.tail) = l->header.next; |
| l->header.next = info->add.head; |
| return true; |
| } |
| break; |
| |
| case lang_data_statement_enum: |
| case lang_reloc_statement_enum: |
| case lang_object_symbols_statement_enum: |
| case lang_output_statement_enum: |
| case lang_target_statement_enum: |
| case lang_input_statement_enum: |
| case lang_assignment_statement_enum: |
| case lang_padding_statement_enum: |
| case lang_address_statement_enum: |
| case lang_fill_statement_enum: |
| break; |
| |
| default: |
| FAIL (); |
| break; |
| } |
| } |
| return false; |
| } |
| |
| |
| /* Call-back for elf${ELFSIZE}_aarch64_size_stubs. */ |
| |
| /* Create a new stub section, and arrange for it to be linked |
| immediately after INPUT_SECTION. */ |
| |
| static asection * |
| elf${ELFSIZE}_aarch64_add_stub_section (const char *stub_sec_name, |
| asection *input_section) |
| { |
| asection *stub_sec; |
| flagword flags; |
| asection *output_section; |
| lang_output_section_statement_type *os; |
| struct hook_stub_info info; |
| |
| flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
| | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); |
| stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, |
| stub_sec_name, flags); |
| if (stub_sec == NULL) |
| goto err_ret; |
| |
| /* Long branch stubs contain a 64-bit address, so the section requires |
| 8 byte alignment. */ |
| bfd_set_section_alignment (stub_sec, 3); |
| |
| output_section = input_section->output_section; |
| os = lang_output_section_get (output_section); |
| |
| info.input_section = input_section; |
| lang_list_init (&info.add); |
| lang_add_section (&info.add, stub_sec, NULL, NULL, os); |
| |
| if (info.add.head == NULL) |
| goto err_ret; |
| |
| if (hook_in_stub (&info, &os->children.head)) |
| return stub_sec; |
| |
| err_ret: |
| einfo (_("%X%P: can not make stub section: %E\n")); |
| return NULL; |
| } |
| |
| /* Another call-back for elf${ELFSIZE}_aarch64_size_stubs. */ |
| |
| static void |
| gldaarch64_layout_sections_again (void) |
| { |
| /* If we have changed sizes of the stub sections, then we need |
| to recalculate all the section offsets. This may mean we need to |
| add even more stubs. */ |
| ldelf_map_segments (true); |
| need_laying_out = -1; |
| } |
| |
| static void |
| build_section_lists (lang_statement_union_type *statement) |
| { |
| if (statement->header.type == lang_input_section_enum) |
| { |
| asection *i = statement->input_section.section; |
| |
| if (!bfd_input_just_syms (i->owner) |
| && (i->flags & SEC_EXCLUDE) == 0 |
| && i->output_section != NULL |
| && i->output_section->owner == link_info.output_bfd) |
| elf${ELFSIZE}_aarch64_next_input_section (& link_info, i); |
| } |
| } |
| |
| static void |
| gld${EMULATION_NAME}_after_allocation (void) |
| { |
| int ret; |
| |
| /* bfd_elf32_discard_info just plays with debugging sections, |
| ie. doesn't affect any code, so we can delay resizing the |
| sections. It's likely we'll resize everything in the process of |
| adding stubs. */ |
| ret = bfd_elf_discard_info (link_info.output_bfd, & link_info); |
| if (ret < 0) |
| { |
| einfo (_("%X%P: .eh_frame/.stab edit: %E\n")); |
| return; |
| } |
| else if (ret > 0) |
| need_laying_out = 1; |
| |
| /* If generating a relocatable output file, then we don't |
| have to examine the relocs. */ |
| if (stub_file != NULL && !bfd_link_relocatable (&link_info)) |
| { |
| ret = elf${ELFSIZE}_aarch64_setup_section_lists (link_info.output_bfd, |
| &link_info); |
| if (ret != 0) |
| { |
| if (ret < 0) |
| { |
| einfo (_("%X%P: could not compute sections lists " |
| "for stub generation: %E\n")); |
| return; |
| } |
| |
| lang_for_each_statement (build_section_lists); |
| |
| /* Call into the BFD backend to do the real work. */ |
| if (! elf${ELFSIZE}_aarch64_size_stubs (link_info.output_bfd, |
| stub_file->the_bfd, |
| & link_info, |
| group_size, |
| & elf${ELFSIZE}_aarch64_add_stub_section, |
| & gldaarch64_layout_sections_again)) |
| { |
| einfo (_("%X%P: can not size stub section: %E\n")); |
| return; |
| } |
| } |
| } |
| |
| if (need_laying_out != -1) |
| ldelf_map_segments (need_laying_out); |
| } |
| |
| static void |
| gld${EMULATION_NAME}_finish (void) |
| { |
| if (!bfd_link_relocatable (&link_info)) |
| { |
| /* Now build the linker stubs. */ |
| if (stub_file->the_bfd->sections != NULL) |
| { |
| if (! elf${ELFSIZE}_aarch64_build_stubs (& link_info)) |
| einfo (_("%X%P: can not build stubs: %E\n")); |
| } |
| } |
| |
| ldelf_finish (); |
| } |
| |
| /* This is a convenient point to tell BFD about target specific flags. |
| After the output has been created, but before inputs are read. */ |
| static void |
| aarch64_elf_create_output_section_statements (void) |
| { |
| if (strstr (bfd_get_target (link_info.output_bfd), "aarch64") == NULL) |
| { |
| /* The AArch64 backend needs special fields in the output hash structure. |
| These will only be created if the output format is an AArch64 format, |
| hence we do not support linking and changing output formats at the |
| same time. Use a link followed by objcopy to change output formats. */ |
| fatal (_("%P: error: cannot change output format " |
| "whilst linking %s binaries\n"), "AArch64"); |
| return; |
| } |
| |
| bfd_elf${ELFSIZE}_aarch64_set_options (link_info.output_bfd, &link_info, |
| no_enum_size_warning, |
| no_wchar_size_warning, |
| pic_veneer, |
| fix_erratum_835769, fix_erratum_843419, |
| no_apply_dynamic_relocs, |
| &sw_protections, |
| &memtag_opts); |
| |
| stub_file = lang_add_input_file ("linker stubs", |
| lang_input_file_is_fake_enum, |
| NULL); |
| stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); |
| if (stub_file->the_bfd == NULL |
| || ! bfd_set_arch_mach (stub_file->the_bfd, |
| bfd_get_arch (link_info.output_bfd), |
| bfd_get_mach (link_info.output_bfd))) |
| { |
| fatal (_("%P: can not create BFD: %E\n")); |
| return; |
| } |
| |
| stub_file->the_bfd->flags |= BFD_LINKER_CREATED; |
| ldlang_add_file (stub_file); |
| } |
| |
| static bool |
| aarch64_parse_feature_report_option (const char *_optarg, |
| const char *report_opt, |
| const size_t report_opt_len, |
| bool allow_empty_value, |
| aarch64_feature_marking_report *level) |
| { |
| if (strncmp (_optarg, report_opt, report_opt_len) != 0) |
| return false; |
| |
| if (strcmp (_optarg + report_opt_len, "=warning") == 0) |
| *level = MARKING_WARN; |
| else if (strcmp (_optarg + report_opt_len, "=none") == 0) |
| *level = MARKING_NONE; |
| else if (strcmp (_optarg + report_opt_len, "=error") == 0) |
| *level = MARKING_ERROR; |
| else if (allow_empty_value && strlen (_optarg) == report_opt_len) |
| *level = MARKING_WARN; |
| else |
| einfo (_("%X%P: error: unrecognized value '-z %s'\n"), _optarg); |
| |
| return true; |
| } |
| |
| static bool |
| aarch64_parse_bti_report_option (const char *_optarg) |
| { |
| #define BTI_REPORT "bti-report" |
| #define BTI_REPORT_LEN COMPILE_TIME_STRLEN (BTI_REPORT) |
| |
| return aarch64_parse_feature_report_option (_optarg, BTI_REPORT, |
| BTI_REPORT_LEN, true, &sw_protections.bti_report); |
| |
| #undef BTI_REPORT |
| #undef BTI_REPORT_LEN |
| } |
| |
| static bool |
| aarch64_parse_gcs_report_option (const char *_optarg) |
| { |
| #define GCS_REPORT "gcs-report" |
| #define GCS_REPORT_LEN COMPILE_TIME_STRLEN (GCS_REPORT) |
| |
| return aarch64_parse_feature_report_option (_optarg, GCS_REPORT, |
| GCS_REPORT_LEN, true, &sw_protections.gcs_report); |
| |
| #undef GCS_REPORT |
| #undef GCS_REPORT_LEN |
| } |
| |
| static bool |
| aarch64_parse_gcs_report_dynamic_option (const char *_optarg) |
| { |
| #define GCS_REPORT_DYNAMIC "gcs-report-dynamic" |
| #define GCS_REPORT_DYNAMIC_LEN COMPILE_TIME_STRLEN (GCS_REPORT_DYNAMIC) |
| |
| return aarch64_parse_feature_report_option (_optarg, GCS_REPORT_DYNAMIC, |
| GCS_REPORT_DYNAMIC_LEN, false, &sw_protections.gcs_report_dynamic); |
| |
| #undef GCS_REPORT_DYNAMIC |
| #undef GCS_REPORT_DYNAMIC_LEN |
| } |
| |
| static bool |
| aarch64_parse_gcs_option (const char *_optarg) |
| { |
| #define GCS "gcs" |
| #define GCS_LEN COMPILE_TIME_STRLEN (GCS) |
| |
| if (strncmp (_optarg, GCS, GCS_LEN) != 0) |
| return false; |
| |
| if (strcmp (_optarg + GCS_LEN, "=always") == 0) |
| sw_protections.gcs_type = GCS_ALWAYS; |
| else if (strcmp (_optarg + GCS_LEN, "=never") == 0) |
| sw_protections.gcs_type = GCS_NEVER; |
| else if (strcmp (_optarg + GCS_LEN, "=implicit") == 0) |
| sw_protections.gcs_type = GCS_IMPLICIT; |
| else |
| einfo (_("%X%P: error: unrecognized value '-z %s'\n"), _optarg); |
| |
| return true; |
| |
| #undef GCS |
| #undef GCS_LEN |
| } |
| |
| static bool |
| aarch64_parse_memtag_mode_option (const char *_optarg) |
| { |
| #define MEMTAG_MODE "memtag-mode" |
| #define MEMTAG_MODE_LEN COMPILE_TIME_STRLEN (MEMTAG_MODE) |
| |
| if (strncmp (_optarg, MEMTAG_MODE, MEMTAG_MODE_LEN) != 0) |
| return false; |
| |
| if (strcmp (_optarg + MEMTAG_MODE_LEN, "=none") == 0) |
| memtag_opts.memtag_mode = AARCH64_MEMTAG_MODE_NONE; |
| else if (strcmp (_optarg + MEMTAG_MODE_LEN, "=sync") == 0) |
| memtag_opts.memtag_mode = AARCH64_MEMTAG_MODE_SYNC; |
| else if (strcmp (_optarg + MEMTAG_MODE_LEN, "=async") == 0) |
| memtag_opts.memtag_mode = AARCH64_MEMTAG_MODE_ASYNC; |
| else |
| einfo (_("%X%P: error: unrecognized value '-z %s'\n"), _optarg); |
| |
| return true; |
| |
| #undef MEMTAG_MODE |
| #undef MEMTAG_MODE_LEN |
| } |
| |
| EOF |
| |
| # Define some shell vars to insert bits of code into the standard elf |
| # parse_args and list_options functions. |
| # |
| PARSE_AND_LIST_SHORTOPTS=p |
| |
| PARSE_AND_LIST_LONGOPTS=' |
| { "no-pipeline-knowledge", no_argument, NULL, '\'p\''}, |
| { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING}, |
| { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER}, |
| { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, |
| { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING}, |
| { "fix-cortex-a53-835769", no_argument, NULL, OPTION_FIX_ERRATUM_835769}, |
| { "fix-cortex-a53-843419", optional_argument, NULL, OPTION_FIX_ERRATUM_843419}, |
| { "no-apply-dynamic-relocs", no_argument, NULL, OPTION_NO_APPLY_DYNAMIC_RELOCS}, |
| ' |
| |
| PARSE_AND_LIST_OPTIONS=' |
| fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible\n" |
| " enum sizes\n")); |
| fprintf (file, _(" --no-wchar-size-warning Don'\''t warn about objects with incompatible\n" |
| " wchar_t sizes\n")); |
| fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n")); |
| fprintf (file, _("\ |
| --stub-group-size=N Maximum size of a group of input sections that\n\ |
| can be handled by one stub section. A negative\n\ |
| value locates all stubs after their branches\n\ |
| (with a group size of -N), while a positive\n\ |
| value allows two groups of input sections, one\n\ |
| before, and one after each stub section.\n\ |
| Values of +/-1 indicate the linker should\n\ |
| choose suitable defaults.\n")); |
| fprintf (file, _(" --fix-cortex-a53-835769 Fix erratum 835769\n")); |
| fprintf (file, _("\ |
| --fix-cortex-a53-843419[=full|adr|adrp] Fix erratum 843419 and optionally specify which workaround to use.\n\ |
| full (default): Use both ADRP and ADR workaround, this will \n\ |
| increase the size of your binaries.\n\ |
| adr: Only use the ADR workaround, this will not cause any increase\n\ |
| in binary size but linking will fail if the referenced address is\n\ |
| out of range of an ADR instruction. This will remove the need of using\n\ |
| a veneer and results in both performance and size benefits.\n\ |
| adrp: Use only the ADRP workaround, this will never rewrite your ADRP\n\ |
| instruction into an ADR. As such the workaround will always use a\n\ |
| veneer and this will give you both a performance and size overhead.\n")); |
| fprintf (file, _(" --no-apply-dynamic-relocs Do not apply link-time values for dynamic relocations\n")); |
| fprintf (file, _("\ |
| -z force-bti Turn on Branch Target Identification mechanism and generate PLTs with BTI.\n\ |
| Generate warnings for missing BTI markings on inputs\n")); |
| fprintf (file, _("\ |
| -z bti-report[=none|warning|error] Emit warning/error on mismatch of BTI marking between input objects and ouput.\n\ |
| none: Does not emit any warning/error messages.\n\ |
| warning (default): Emit warning when the input objects are missing BTI markings\n\ |
| and output has BTI marking.\n\ |
| error: Emit error when the input objects are missing BTI markings\n\ |
| and output has BTI marking.\n")); |
| fprintf (file, _("\ |
| -z pac-plt Protect PLTs with Pointer Authentication.\n")); |
| fprintf (file, _("\ |
| -z gcs=[always|never|implicit] Controls whether the output supports the Guarded Control Stack (GCS) mechanism.\n\ |
| implicit (default if '\''-z gcs'\'' is omitted): deduce GCS from input objects.\n\ |
| always: always marks the output with GCS.\n\ |
| never: never marks the output with GCS.\n")); |
| fprintf (file, _("\ |
| -z gcs-report[=none|warning|error] Emit warning/error on mismatch of GCS marking between input objects and ouput.\n\ |
| none: Does not emit any warning/error messages.\n\ |
| warning (default): Emit warning when the input objects are missing GCS markings\n\ |
| and output have GCS marking.\n\ |
| error: Emit error when the input objects are missing GCS markings\n\ |
| and output have GCS marking.\n")); |
| fprintf (file, _("\ |
| -z gcs-report-dynamic=none|warning|error Emit warning/error on mismatch of GCS marking between the current link\n\ |
| unit and input dynamic objects.\n\ |
| none: Does not emit any warning/error messages.\n\ |
| warning: Emit warning when the input objects are missing GCS markings\n\ |
| and output have GCS marking.\n\ |
| error: Emit error when the input objects are missing GCS markings\n\ |
| and output have GCS marking.\n")); |
| fprintf (file, _("\ |
| -z memtag-mode[=none|sync|async] Select Memory Tagging Extension mode of operation to use.\n\ |
| Emits a DT_AARCH64_MEMTAG_MODE dynamic tag for the binary.\n\ |
| This entry is only valid on the main executable. It is\n\ |
| ignored in the dynamically loaded objects by the loader.\n\ |
| none (default): Disable MTE checking of memory reads and writes.\n\ |
| sync: Enable precise exceptions when mismatched address and\n\ |
| allocation tags detected on load/store operations.\n\ |
| async: Enable imprecise exceptions.\n")); |
| fprintf (file, _("\ |
| -z memtag-stack Mark program stack with MTE protection.\n")); |
| ' |
| |
| PARSE_AND_LIST_ARGS_CASE_Z_AARCH64=' |
| else if (strcmp (optarg, "force-bti") == 0) |
| sw_protections.plt_type |= PLT_BTI; |
| else if (aarch64_parse_bti_report_option (optarg)) |
| {} |
| else if (strcmp (optarg, "pac-plt") == 0) |
| sw_protections.plt_type |= PLT_PAC; |
| else if (aarch64_parse_gcs_report_dynamic_option (optarg)) |
| {} |
| else if (aarch64_parse_gcs_report_option (optarg)) |
| {} |
| else if (aarch64_parse_gcs_option (optarg)) |
| {} |
| else if (aarch64_parse_memtag_mode_option (optarg)) |
| {} |
| else if (strcmp (optarg, "memtag-stack") == 0) |
| memtag_opts.memtag_stack = 1; |
| ' |
| PARSE_AND_LIST_ARGS_CASE_Z="$PARSE_AND_LIST_ARGS_CASE_Z $PARSE_AND_LIST_ARGS_CASE_Z_AARCH64" |
| |
| PARSE_AND_LIST_ARGS_CASES=' |
| case '\'p\'': |
| /* Only here for backwards compatibility. */ |
| break; |
| |
| case OPTION_NO_ENUM_SIZE_WARNING: |
| no_enum_size_warning = 1; |
| break; |
| |
| case OPTION_NO_WCHAR_SIZE_WARNING: |
| no_wchar_size_warning = 1; |
| break; |
| |
| case OPTION_PIC_VENEER: |
| pic_veneer = 1; |
| break; |
| |
| case OPTION_FIX_ERRATUM_835769: |
| fix_erratum_835769 = 1; |
| break; |
| |
| case OPTION_FIX_ERRATUM_843419: |
| fix_erratum_843419 = ERRAT_ADR | ERRAT_ADRP; |
| if (optarg && *optarg) |
| { |
| if (strcmp ("full", optarg) == 0) |
| fix_erratum_843419 = ERRAT_ADR | ERRAT_ADRP; |
| else if (strcmp ("adrp", optarg) == 0) |
| fix_erratum_843419 = ERRAT_ADRP; |
| else if (strcmp ("adr", optarg) == 0) |
| fix_erratum_843419 = ERRAT_ADR; |
| else |
| einfo (_("%P: error: unrecognized option for " |
| "--fix-cortex-a53-843419: %s\n"), optarg); |
| } |
| break; |
| |
| case OPTION_NO_APPLY_DYNAMIC_RELOCS: |
| no_apply_dynamic_relocs = 1; |
| break; |
| |
| case OPTION_STUBGROUP_SIZE: |
| { |
| const char *end; |
| |
| group_size = bfd_scan_vma (optarg, &end, 0); |
| if (*end) |
| fatal (_("%P: invalid number `%s'\''\n"), optarg); |
| } |
| break; |
| ' |
| |
| # We have our own before_allocation etc. functions, but they call |
| # the standard routines, so give them a different name. |
| LDEMUL_BEFORE_ALLOCATION=aarch64_elf_before_allocation |
| LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
| LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=aarch64_elf_create_output_section_statements |
| |
| # Replace the elf before_parse function with our own. |
| LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse |
| |
| # Call the extra arm-elf function |
| LDEMUL_FINISH=gld${EMULATION_NAME}_finish |
