# This shell script emits a C file. -*- C -*-
-# Copyright 1991, 1993, 1996, 1997, 1998, 1999, 2000, 2002
-# Free Software Foundation, Inc.
+# Copyright (C) 1991-2020 Free Software Foundation, Inc.
#
-# This file is part of GLD, the Gnu Linker.
+# 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 2 of the License, or
+# 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,
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
#
-# This file is sourced from elf32.em, and defines extra arm-elf
+# This file is sourced from elf.em, and defines extra arm-elf
# specific routines.
#
-cat >>e${EMULATION_NAME}.c <<EOF
+test -z "$TARGET2_TYPE" && TARGET2_TYPE="rel"
+fragment <<EOF
-static int no_pipeline_knowledge = 0;
-static char *thumb_entry_symbol = NULL;
-static bfd *bfd_for_interwork;
+#include "ldctor.h"
+#include "elf/arm.h"
+#include "elf32-arm.h"
+static struct elf32_arm_params params =
+{
+ NULL, /* thumb_entry_symbol */
+ 0, /* byteswap_code */
+ 0${TARGET1_IS_REL}, /* target1_is_rel */
+ "${TARGET2_TYPE}", /* target2_type */
+ 0, /* fix_v4bx */
+ 0, /* use_blx */
+ BFD_ARM_VFP11_FIX_DEFAULT, /* vfp11_denorm_fix */
+ BFD_ARM_STM32L4XX_FIX_NONE, /* stm32l4xx_fix */
+ 0, /* no_enum_size_warning */
+ 0, /* no_wchar_size_warning */
+ 0, /* pic_veneer */
+ -1, /* fix_cortex_a8 */
+ 1, /* fix_arm1176 */
+ -1, /* merge_exidx_entries */
+ 0, /* cmse_implib */
+ NULL /* in_implib_bfd */
+};
+static char *in_implib_filename = NULL;
static void
-gld${EMULATION_NAME}_before_parse ()
+gld${EMULATION_NAME}_before_parse (void)
{
#ifndef TARGET_ /* I.e., if not generic. */
- ldfile_set_output_arch ("`echo ${ARCH}`");
+ ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown);
#endif /* not TARGET_ */
- config.dynamic_link = ${DYNAMIC_LINK-TRUE};
+ 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
}
-static void arm_elf_after_open PARAMS ((void));
+static void
+gld${EMULATION_NAME}_set_symbols (void)
+{
+ /* PR 19106: The section resizing code in gldarmelf_after_allocation
+ is effectively the same as relaxation, so prevent early memory
+ region checks which produce bogus error messages.
+ Note - this test has nothing to do with symbols. It is just here
+ because this is the first emulation routine that is called after
+ the command line has been parsed. */
+ if (!bfd_link_relocatable (&link_info))
+ TARGET_ENABLE_RELAXATION;
+}
static void
-arm_elf_after_open ()
+arm_elf_before_allocation (void)
{
- if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
+ bfd_elf32_arm_set_byteswap_code (&link_info, params.byteswap_code);
+
+ /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary
+ due to architecture version. */
+ bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info);
+
+ /* Choose type of STM32L4XX erratum fix, or warn if specified fix is
+ unnecessary due to architecture version. */
+ bfd_elf32_arm_set_stm32l4xx_fix (link_info.output_bfd, &link_info);
+
+ /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */
+ bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info);
+
+ /* Ensure the output sections of veneers needing a dedicated one is not
+ removed. */
+ bfd_elf32_arm_keep_private_stub_output_sections (&link_info);
+
+ /* 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)->dynobj == NULL)
{
- /* The arm backend needs special fields in the output hash structure.
- These will only be created if the output format is an arm 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. */
- einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
- return;
- }
+ /* Here we rummage through the found bfds to collect glue information. */
+ LANG_FOR_EACH_INPUT_STATEMENT (is)
+ {
+ /* Initialise mapping tables for code/data. */
+ bfd_elf32_arm_init_maps (is->the_bfd);
+
+ if (!bfd_elf32_arm_process_before_allocation (is->the_bfd,
+ &link_info)
+ || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info)
+ || !bfd_elf32_arm_stm32l4xx_erratum_scan (is->the_bfd,
+ &link_info))
+ /* xgettext:c-format */
+ einfo (_("%P: errors encountered processing file %s\n"),
+ is->filename);
+ }
- {
- LANG_FOR_EACH_INPUT_STATEMENT (is)
- {
- bfd_elf32_arm_add_glue_sections_to_bfd (is->the_bfd, & link_info);
- }
- }
+ /* We have seen it all. Allocate it, and carry on. */
+ bfd_elf32_arm_allocate_interworking_sections (& link_info);
+ }
/* Call the standard elf routine. */
- gld${EMULATION_NAME}_after_open ();
+ gld${EMULATION_NAME}_before_allocation ();
}
-static void arm_elf_set_bfd_for_interworking
- PARAMS ((lang_statement_union_type *));
+/* Fake input file for stubs. */
+static lang_input_statement_type *stub_file;
-static void
-arm_elf_set_bfd_for_interworking (statement)
- lang_statement_union_type *statement;
+/* 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
{
- if (statement->header.type == lang_input_section_enum
- && !statement->input_section.ifile->just_syms_flag)
- {
- asection *i = statement->input_section.section;
- asection *output_section = i->output_section;
+ lang_statement_list_type add;
+ asection *input_section;
+};
+
+/* Traverse the linker tree to find the spot where the stub goes. */
- ASSERT (output_section->owner == output_bfd);
+static bfd_boolean
+hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
+{
+ lang_statement_union_type *l;
+ bfd_boolean ret;
- if ((output_section->flags & SEC_HAS_CONTENTS) != 0
- && (i->flags & SEC_NEVER_LOAD) == 0
- && ! i->owner->output_has_begun)
+ for (; (l = *lp) != NULL; lp = &l->header.next)
+ {
+ switch (l->header.type)
{
- bfd_for_interwork = i->owner;
- bfd_for_interwork->output_has_begun = TRUE;
+ 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;
}
-static void arm_elf_before_allocation PARAMS ((void));
+
+/* Call-back for elf32_arm_size_stubs. */
+
+/* Create a new stub section, and arrange for it to be linked
+ immediately after INPUT_SECTION. */
+
+static asection *
+elf32_arm_add_stub_section (const char * stub_sec_name,
+ asection * output_section,
+ asection * after_input_section,
+ unsigned int alignment_power)
+{
+ asection *stub_sec;
+ flagword flags;
+ 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
+ | SEC_LINKER_CREATED);
+ stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
+ stub_sec_name, flags);
+ if (stub_sec == NULL)
+ goto err_ret;
+
+ bfd_set_section_alignment (stub_sec, alignment_power);
+
+ os = lang_output_section_get (output_section);
+
+ info.input_section = after_input_section;
+ lang_list_init (&info.add);
+ lang_add_section (&info.add, stub_sec, NULL, os);
+
+ if (info.add.head == NULL)
+ goto err_ret;
+
+ if (after_input_section == NULL)
+ {
+ lang_statement_union_type **lp = &os->children.head;
+ lang_statement_union_type *l, *lprev = NULL;
+
+ for (; (l = *lp) != NULL; lp = &l->header.next, lprev = l);
+
+ if (lprev)
+ lprev->header.next = info.add.head;
+ else
+ os->children.head = info.add.head;
+
+ return stub_sec;
+ }
+ else
+ {
+ 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_arm_size_stubs. */
static void
-arm_elf_before_allocation ()
+gldarm_layout_sections_again (void)
{
- bfd *tem;
+ /* 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;
+}
- /* Call the standard elf routine. */
- gld${EMULATION_NAME}_before_allocation ();
+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 (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
+ && (i->flags & SEC_EXCLUDE) == 0
+ && i->output_section != NULL
+ && i->output_section->owner == link_info.output_bfd)
+ elf32_arm_next_input_section (& link_info, i);
+ }
+}
+
+static int
+compare_output_sec_vma (const void *a, const void *b)
+{
+ asection *asec = *(asection **) a, *bsec = *(asection **) b;
+ asection *aout = asec->output_section, *bout = bsec->output_section;
+ bfd_vma avma, bvma;
+
+ /* If there's no output section for some reason, compare equal. */
+ if (!aout || !bout)
+ return 0;
+
+ avma = aout->vma + asec->output_offset;
+ bvma = bout->vma + bsec->output_offset;
- if (link_info.input_bfds != NULL)
+ if (avma > bvma)
+ return 1;
+ else if (avma < bvma)
+ return -1;
+
+ return 0;
+}
+
+static void
+gld${EMULATION_NAME}_after_allocation (void)
+{
+ int ret;
+
+ /* Build a sorted list of input text sections, then use that to process
+ the unwind table index. */
+ unsigned int list_size = 10;
+ asection **sec_list = (asection **)
+ xmalloc (list_size * sizeof (asection *));
+ unsigned int sec_count = 0;
+
+ LANG_FOR_EACH_INPUT_STATEMENT (is)
{
- /* The interworking bfd must be the last one in the link. */
- bfd_for_interwork = NULL;
- for (tem = link_info.input_bfds; tem != NULL; tem = tem->link_next)
- tem->output_has_begun = FALSE;
+ bfd *abfd = is->the_bfd;
+ asection *sec;
- lang_for_each_statement (arm_elf_set_bfd_for_interworking);
- ASSERT (bfd_for_interwork != NULL);
- for (tem = link_info.input_bfds; tem != NULL; tem = tem->link_next)
- tem->output_has_begun = FALSE;
+ if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
+ continue;
- bfd_elf32_arm_get_bfd_for_interworking (bfd_for_interwork, &link_info);
+ for (sec = abfd->sections; sec != NULL; sec = sec->next)
+ {
+ asection *out_sec = sec->output_section;
+
+ if (out_sec
+ && elf_section_data (sec)
+ && elf_section_type (sec) == SHT_PROGBITS
+ && (elf_section_flags (sec) & SHF_EXECINSTR) != 0
+ && (sec->flags & SEC_EXCLUDE) == 0
+ && sec->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
+ && out_sec != bfd_abs_section_ptr)
+ {
+ if (sec_count == list_size)
+ {
+ list_size *= 2;
+ sec_list = (asection **)
+ xrealloc (sec_list, list_size * sizeof (asection *));
+ }
+
+ sec_list[sec_count++] = sec;
+ }
+ }
}
- /* We should be able to set the size of the interworking stub section. */
- /* Here we rummage through the found bfds to collect glue information. */
- /* FIXME: should this be based on a command line option? krk@cygnus.com */
+ qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma);
+
+ if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info,
+ params.merge_exidx_entries))
+ need_laying_out = 1;
+
+ free (sec_list);
+
+ /* 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 = elf32_arm_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 (! elf32_arm_size_stubs (link_info.output_bfd,
+ stub_file->the_bfd,
+ & link_info,
+ group_size,
+ & elf32_arm_add_stub_section,
+ & gldarm_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)
+{
+ struct bfd_link_hash_entry * h;
+
{
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
- if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, & link_info,
- no_pipeline_knowledge))
- {
- /* xgettext:c-format */
- einfo (_("Errors encountered processing file %s"), is->filename);
- }
+ /* Figure out where VFP11 erratum veneers (and the labels returning
+ from same) have been placed. */
+ bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info);
+
+ /* Figure out where STM32L4XX erratum veneers (and the labels returning
+ from them) have been placed. */
+ bfd_elf32_arm_stm32l4xx_fix_veneer_locations (is->the_bfd, &link_info);
}
}
- /* We have seen it all. Allocate it, and carry on. */
- bfd_elf32_arm_allocate_interworking_sections (& link_info);
-}
+ if (!bfd_link_relocatable (&link_info))
+ {
+ /* Now build the linker stubs. */
+ if (stub_file->the_bfd->sections != NULL)
+ {
+ if (! elf32_arm_build_stubs (& link_info))
+ einfo (_("%X%P: can not build stubs: %E\n"));
+ }
+ }
-static void arm_elf_finish PARAMS ((void));
+ finish_default ();
-static void
-arm_elf_finish ()
-{
- struct bfd_link_hash_entry * h;
+ if (params.thumb_entry_symbol)
+ {
+ h = bfd_link_hash_lookup (link_info.hash, params.thumb_entry_symbol,
+ FALSE, FALSE, TRUE);
+ }
+ else
+ {
+ struct elf_link_hash_entry * eh;
- /* Call the elf32.em routine. */
- gld${EMULATION_NAME}_finish ();
+ if (!entry_symbol.name)
+ return;
+
+ h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
+ FALSE, FALSE, TRUE);
+ eh = (struct elf_link_hash_entry *)h;
+ if (!h || ARM_GET_SYM_BRANCH_TYPE (eh->target_internal)
+ != ST_BRANCH_TO_THUMB)
+ return;
+ }
- if (thumb_entry_symbol == NULL)
- return;
-
- h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
- FALSE, FALSE, TRUE);
if (h != (struct bfd_link_hash_entry *) NULL
&& (h->type == bfd_link_hash_defined
{
static char buffer[32];
bfd_vma val;
-
+
/* Special procesing is required for a Thumb entry symbol. The
bottom bit of its address must be set. */
val = (h->u.def.value
- + bfd_get_section_vma (output_bfd,
- h->u.def.section->output_section)
+ + bfd_section_vma (h->u.def.section->output_section)
+ h->u.def.section->output_offset);
-
+
val |= 1;
/* Now convert this value into a string and store it in entry_symbol
- where the lang_finish() function will pick it up. */
+ where the lang_finish() function will pick it up. */
buffer[0] = '0';
buffer[1] = 'x';
-
+
sprintf_vma (buffer + 2, val);
- if (entry_symbol.name != NULL && entry_from_cmdline)
+ if (params.thumb_entry_symbol != NULL && entry_symbol.name != NULL
+ && entry_from_cmdline)
einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
- thumb_entry_symbol, entry_symbol.name);
+ params.thumb_entry_symbol, entry_symbol.name);
entry_symbol.name = buffer;
}
else
- einfo (_("%P: warning: connot find thumb start symbol %s\n"),
- thumb_entry_symbol);
+ einfo (_("%P: warning: cannot find thumb start symbol %s\n"),
+ h->root.string);
+}
+
+/* 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
+arm_elf_create_output_section_statements (void)
+{
+ if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
+ {
+ /* The arm backend needs special fields in the output hash structure.
+ These will only be created if the output format is an arm 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. */
+ einfo (_("%F%P: error: cannot change output format "
+ "whilst linking %s binaries\n"), "ARM");
+ return;
+ }
+
+ if (in_implib_filename)
+ {
+ params.in_implib_bfd = bfd_openr (in_implib_filename,
+ bfd_get_target (link_info.output_bfd));
+
+ if (params.in_implib_bfd == NULL)
+ einfo (_("%F%P: %s: can't open: %E\n"), in_implib_filename);
+
+ if (!bfd_check_format (params.in_implib_bfd, bfd_object))
+ einfo (_("%F%P: %s: not a relocatable file: %E\n"), in_implib_filename);
+ }
+
+ bfd_elf32_arm_set_target_params (link_info.output_bfd, &link_info, ¶ms);
+
+ 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)))
+ {
+ einfo (_("%F%P: can not create BFD: %E\n"));
+ return;
+ }
+
+ stub_file->the_bfd->flags |= BFD_LINKER_CREATED;
+ ldlang_add_file (stub_file);
+
+ /* Also use the stub file for stubs placed in a single output section. */
+ bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info);
+ bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info);
}
EOF
#
PARSE_AND_LIST_PROLOGUE='
#define OPTION_THUMB_ENTRY 301
+#define OPTION_BE8 302
+#define OPTION_TARGET1_REL 303
+#define OPTION_TARGET1_ABS 304
+#define OPTION_TARGET2 305
+#define OPTION_FIX_V4BX 306
+#define OPTION_USE_BLX 307
+#define OPTION_VFP11_DENORM_FIX 308
+#define OPTION_NO_ENUM_SIZE_WARNING 309
+#define OPTION_PIC_VENEER 310
+#define OPTION_FIX_V4BX_INTERWORKING 311
+#define OPTION_STUBGROUP_SIZE 312
+#define OPTION_NO_WCHAR_SIZE_WARNING 313
+#define OPTION_FIX_CORTEX_A8 314
+#define OPTION_NO_FIX_CORTEX_A8 315
+#define OPTION_NO_MERGE_EXIDX_ENTRIES 316
+#define OPTION_FIX_ARM1176 317
+#define OPTION_NO_FIX_ARM1176 318
+#define OPTION_LONG_PLT 319
+#define OPTION_STM32L4XX_FIX 320
+#define OPTION_CMSE_IMPLIB 321
+#define OPTION_IN_IMPLIB 322
'
PARSE_AND_LIST_SHORTOPTS=p
-# Note we have duplicate entries for no-pipeline-knowledge in order
-# to prevent getopt_long_only from thinking that -n is a unique
-# abbreviation for --no-pipeline-knowledge.
PARSE_AND_LIST_LONGOPTS='
- { "no-pipeline-knowledge", no_argument, NULL, '\'p\''},
{ "no-pipeline-knowledge", no_argument, NULL, '\'p\''},
{ "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
+ { "be8", no_argument, NULL, OPTION_BE8},
+ { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL},
+ { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS},
+ { "target2", required_argument, NULL, OPTION_TARGET2},
+ { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX},
+ { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING},
+ { "use-blx", no_argument, NULL, OPTION_USE_BLX},
+ { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX},
+ { "fix-stm32l4xx-629360", optional_argument, NULL, OPTION_STM32L4XX_FIX},
+ { "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-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 },
+ { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 },
+ { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES },
+ { "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 },
+ { "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 },
+ { "long-plt", no_argument, NULL, OPTION_LONG_PLT },
+ { "cmse-implib", no_argument, NULL, OPTION_CMSE_IMPLIB },
+ { "in-implib", required_argument, NULL, OPTION_IN_IMPLIB },
'
PARSE_AND_LIST_OPTIONS='
- fprintf (file, _(" -p --no-pipeline-knowledge Stop the linker knowing about the pipeline length\n"));
- fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
+ fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n"));
+ fprintf (file, _(" --be8 Output BE8 format image\n"));
+ fprintf (file, _(" --target1-rel Interpret R_ARM_TARGET1 as R_ARM_REL32\n"));
+ fprintf (file, _(" --target1-abs Interpret R_ARM_TARGET1 as R_ARM_ABS32\n"));
+ fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n"));
+ fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n"));
+ fprintf (file, _(" --fix-v4bx-interworking Rewrite BX rn branch to ARMv4 interworking veneer\n"));
+ fprintf (file, _(" --use-blx Enable use of BLX instructions\n"));
+ fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n"));
+ fprintf (file, _(" --fix-stm32l4xx-629360 Specify how to fix STM32L4XX 629360 erratum\n"));
+ 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, _(" --long-plt Generate long .plt entries\n"
+ " to handle large .plt/.got displacements\n"));
+ fprintf (file, _(" --cmse-implib Make import library to be a secure gateway import\n"
+ " library as per ARMv8-M Security Extensions\n"));
+ fprintf (file, _(" --in-implib Import library whose symbols address must\n"
+ " remain stable\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, _(" --[no-]fix-cortex-a8 Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n"));
+ fprintf (file, _(" --no-merge-exidx-entries Disable merging exidx entries\n"));
+ fprintf (file, _(" --[no-]fix-arm1176 Disable/enable ARM1176 BLX immediate erratum fix\n"));
'
PARSE_AND_LIST_ARGS_CASES='
case '\'p\'':
- no_pipeline_knowledge = 1;
+ /* Only here for backwards compatibility. */
break;
case OPTION_THUMB_ENTRY:
- thumb_entry_symbol = optarg;
+ params.thumb_entry_symbol = optarg;
+ break;
+
+ case OPTION_BE8:
+ params.byteswap_code = 1;
+ break;
+
+ case OPTION_TARGET1_REL:
+ params.target1_is_rel = 1;
+ break;
+
+ case OPTION_TARGET1_ABS:
+ params.target1_is_rel = 0;
+ break;
+
+ case OPTION_TARGET2:
+ params.target2_type = optarg;
+ break;
+
+ case OPTION_FIX_V4BX:
+ params.fix_v4bx = 1;
+ break;
+
+ case OPTION_FIX_V4BX_INTERWORKING:
+ params.fix_v4bx = 2;
+ break;
+
+ case OPTION_USE_BLX:
+ params.use_blx = 1;
+ break;
+
+ case OPTION_VFP11_DENORM_FIX:
+ if (strcmp (optarg, "none") == 0)
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE;
+ else if (strcmp (optarg, "scalar") == 0)
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR;
+ else if (strcmp (optarg, "vector") == 0)
+ params.vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR;
+ else
+ einfo (_("%P: unrecognized VFP11 fix type '\''%s'\''\n"), optarg);
+ break;
+
+ case OPTION_STM32L4XX_FIX:
+ if (!optarg)
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
+ else if (strcmp (optarg, "none") == 0)
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE;
+ else if (strcmp (optarg, "default") == 0)
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT;
+ else if (strcmp (optarg, "all") == 0)
+ params.stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_ALL;
+ else
+ einfo (_("%P: unrecognized STM32L4XX fix type '\''%s'\''\n"), optarg);
+ break;
+
+ case OPTION_NO_ENUM_SIZE_WARNING:
+ params.no_enum_size_warning = 1;
+ break;
+
+ case OPTION_NO_WCHAR_SIZE_WARNING:
+ params.no_wchar_size_warning = 1;
+ break;
+
+ case OPTION_PIC_VENEER:
+ params.pic_veneer = 1;
+ break;
+
+ case OPTION_STUBGROUP_SIZE:
+ {
+ const char *end;
+
+ group_size = bfd_scan_vma (optarg, &end, 0);
+ if (*end)
+ einfo (_("%F%P: invalid number `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_FIX_CORTEX_A8:
+ params.fix_cortex_a8 = 1;
+ break;
+
+ case OPTION_NO_FIX_CORTEX_A8:
+ params.fix_cortex_a8 = 0;
+ break;
+
+ case OPTION_NO_MERGE_EXIDX_ENTRIES:
+ params.merge_exidx_entries = 0;
+ break;
+
+ case OPTION_FIX_ARM1176:
+ params.fix_arm1176 = 1;
+ break;
+
+ case OPTION_NO_FIX_ARM1176:
+ params.fix_arm1176 = 0;
+ break;
+
+ case OPTION_LONG_PLT:
+ bfd_elf32_arm_use_long_plt ();
+ break;
+
+ case OPTION_CMSE_IMPLIB:
+ params.cmse_implib = 1;
+ break;
+
+ case OPTION_IN_IMPLIB:
+ in_implib_filename = optarg;
break;
'
-# We have our own after_open and before_allocation functions, but they call
+# We have our own before_allocation etc. functions, but they call
# the standard routines, so give them a different name.
-LDEMUL_AFTER_OPEN=arm_elf_after_open
LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation
+LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements
# Replace the elf before_parse function with our own.
LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse
+LDEMUL_SET_SYMBOLS=gld"${EMULATION_NAME}"_set_symbols
# Call the extra arm-elf function
-LDEMUL_FINISH=arm_elf_finish
+LDEMUL_FINISH=gld${EMULATION_NAME}_finish
projects / thirdparty / binutils-gdb.git / blobdiff