2000-09-16 02:52:52 +08:00
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# This shell script emits a C file. -*- C -*-
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2009-09-02 15:25:43 +08:00
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# Copyright 2000, 2001, 2003, 2005, 2007, 2008, 2009
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# Free Software Foundation, Inc.
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2000-09-16 02:52:52 +08:00
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# Written by Michael Sokolov <msokolov@ivan.Harhan.ORG>, based on armelf.em
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#
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2007-07-06 22:09:45 +08:00
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# This file is part of the GNU Binutils.
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2000-09-16 02:52:52 +08:00
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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2007-07-06 22:09:45 +08:00
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# the Free Software Foundation; either version 3 of the License, or
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2000-09-16 02:52:52 +08:00
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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2007-07-06 22:09:45 +08:00
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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2000-09-16 02:52:52 +08:00
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2000-09-22 08:41:50 +08:00
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# This file is sourced from elf32.em, and defines some extra routines for m68k
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# embedded systems using ELF and for some other systems using m68k ELF. While
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# it is sourced from elf32.em for all m68k ELF configurations, here we include
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# only the features we want depending on the configuration.
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case ${target} in
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m68*-*-elf)
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echo "#define SUPPORT_EMBEDDED_RELOCS" >>e${EMULATION_NAME}.c
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;;
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esac
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Multi-GOT support for m68k.
bfd/
* elf32-m68k.c (struct elf_m68k_link_hash_entry: got_entry_key,
glist): New fields.
(struct elf_m68k_got_entry_key, struct elf_m68k_got_entry,
struct elf_m68k_got, struct elf_m68k_bfd2got_entry,
struct elf_m68k_multi_got): New data structures.
(struct elf_m68k_link_hash_table: local_gp_p, use_neg_got_offsets_p,
allow_multigot_p, multi_got_): New fields.
(elf_m68k_multi_got): New macro.
(elf_m68k_link_hash_newfunc): Initialize new fields of
struct elf_m68k_link_hash_entry.
(elf_m68k_link_hash_table_create): Initialize new fields of
struct elf_m68k_link_hash_table.
(elf_m68k_link_hash_table_free): New static function implementing hook.
(elf_m68k_init_got, elf_m68k_clear_got, elf_m68k_create_empty_got): New
static functions for struct elf_m68k_got.
(elf_m68k_init_got_entry_key, elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq): New static functions for
struct elf_m68k_got_entry.
(ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT,
ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT): New macros.
(enum elf_m68k_get_entry_howto): New enum.
(elf_m68k_get_got_entry, elf_m68k_update_got_entry_type,
elf_m68k_remove_got_entry_type): New static functions for
struct elf_m68k_got_entry.
(elf_m68k_add_entry_to_got): New static function.
(elf_m68k_bfd2got_entry_hash, elf_m68k_bfd2got_entry_eq,
elf_m68k_bfd2got_entry_del, elf_m68k_get_bfd2got_entry): New static
functions for struct elf_m68k_bfd2got_entry.
(struct elf_m68k_can_merge_gots_arg, elf_m68k_can_merge_gots_1,
elf_m68k_can_merge_gots): New traversal.
(struct elf_m68k_merge_gots_arg, elf_m68k_merge_gots_1,
elf_m68k_merge_gots): Ditto.
(struct elf_m68k_finalize_got_offsets_arg,
elf_m68k_finalize_got_offsets_1, elf_m68k_finalize_got_offsets): Ditto.
(struct elf_m68k_partition_multi_got_arg,
elf_m68k_partition_multi_got_1, elf_m68k_init_symndx2h_1,
elf_m68k_partition_multi_got): Ditto.
(elf_m68k_find_got_entry_ptr, elf_m68k_remove_got_entry): New static
functions.
(elf_m68k_copy_indirect_symbol): New static function implementing
a hook.
(elf_m68k_check_relocs): Update to add entries to multi-GOT.
(elf_m68k_gc_sweep_hook): Update to remove entries from multi-GOT.
(elf_m68k_always_size_sections): Assign BFDs to GOTs.
(elf_m68k_relocate_section): Update to properly handle GOT relocations.
(elf_m68k_finish_dynamic_symbol): Update to traverse all GOT entries
of a global symbol.
(bfd_elf_m68k_set_target_options): New function.
(bfd_elf32_bfd_link_hash_table_free): Define hook.
(bfd_elf32_bfd_final_link): Change expansion to bfd_elf_final_link
to skip generic calculation of GOT offsets.
(elf_backend_copy_indirect_symbol): Define hook.
* bfd-in.h (bfd_elf_m68k_set_target_options): Declare function.
* bfd-in2.h: Regenerate.
ld/
* configure.in (--enable-got): New option. Handle it.
* configure: Regenerate.
* config.in: Regenerate.
* emultempl/m68kelf.em: (got_handling_target_default): New shell
variable.
(GOT_HANDLING_TARGET_DEFAULT): New macro.
(GOT_HANDLING_DEFAULT): New macro. Initialize it from configure
option if one was given.
(got_handling): New static variable.
(elf_m68k_create_output_section_statements): New static function
implementing hook.
(PARSE_AND_LIST_PROLOGUE): Define shell variable.
(OPTION_GOT): New macro.
(PARSE_AND_LIST_LONGOPTS): Define shell variable. Specify
--got option.
(got): New linker option.
(PARSE_AND_LIST_OPTIONS): Define shell variable. Print help string
for --got option.
(PARSE_AND_LIST_ARGS_CASES): Define shell variable. Handle --got
option.
* ld.texinfo: Document --got=<type> option.
* gen-doc.texi: Add M68K.
* NEWS: Mention the new feature.
ld/testsuite/
* ld-m68k/got-12.s: New file.
* ld-m68k/got-13.s: New file.
* ld-m68k/got-14.s: New file.
* ld-m68k/got-15.s: New file.
* ld-m68k/got-34.s: New file.
* ld-m68k/got-35.s: New file.
* ld-m68k/got-single-12-ok.d: New dump test.
* ld-m68k/got-single-13-er.d: New dump test.
* ld-m68k/got-negative-14-ok.d: New dump test.
* ld-m68k/got-negative-15-er.d: New dump test.
* ld-m68k/got-negative-12-13-14-34-ok.d: New dump test.
* ld-m68k/got-negative-12-13-14-35-er.d: New dump test.
* ld-m68k/got-multigot-14-ok.d: New dump test.
* ld-m68k/got-multigot-15-er.d: New dump test.
* ld-m68k/got-multigot-12-13-14-34-35-ok.d: New dump test.
* ld-m68k/xgot-15.s: New source.
* ld-m68k/got-xgot-15-ok.d: New test.
* ld-m68k/got-xgot-12-13-14-15-34-35-ok.d: New test.
* ld-m68k/m68k.exp: Run new tests.
2008-05-21 20:01:37 +08:00
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case ${target} in
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*-linux*)
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# Don't use multi-GOT by default due to glibc linker's assumption
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# that GOT pointer points to GOT[0].
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# got_handling_target_default=GOT_HANDLING_MULTIGOT
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got_handling_target_default=GOT_HANDLING_SINGLE
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;;
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*)
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got_handling_target_default=GOT_HANDLING_SINGLE
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;;
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esac
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2007-07-20 03:56:10 +08:00
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fragment <<EOF
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2000-09-16 02:52:52 +08:00
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Multi-GOT support for m68k.
bfd/
* elf32-m68k.c (struct elf_m68k_link_hash_entry: got_entry_key,
glist): New fields.
(struct elf_m68k_got_entry_key, struct elf_m68k_got_entry,
struct elf_m68k_got, struct elf_m68k_bfd2got_entry,
struct elf_m68k_multi_got): New data structures.
(struct elf_m68k_link_hash_table: local_gp_p, use_neg_got_offsets_p,
allow_multigot_p, multi_got_): New fields.
(elf_m68k_multi_got): New macro.
(elf_m68k_link_hash_newfunc): Initialize new fields of
struct elf_m68k_link_hash_entry.
(elf_m68k_link_hash_table_create): Initialize new fields of
struct elf_m68k_link_hash_table.
(elf_m68k_link_hash_table_free): New static function implementing hook.
(elf_m68k_init_got, elf_m68k_clear_got, elf_m68k_create_empty_got): New
static functions for struct elf_m68k_got.
(elf_m68k_init_got_entry_key, elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq): New static functions for
struct elf_m68k_got_entry.
(ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT,
ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT): New macros.
(enum elf_m68k_get_entry_howto): New enum.
(elf_m68k_get_got_entry, elf_m68k_update_got_entry_type,
elf_m68k_remove_got_entry_type): New static functions for
struct elf_m68k_got_entry.
(elf_m68k_add_entry_to_got): New static function.
(elf_m68k_bfd2got_entry_hash, elf_m68k_bfd2got_entry_eq,
elf_m68k_bfd2got_entry_del, elf_m68k_get_bfd2got_entry): New static
functions for struct elf_m68k_bfd2got_entry.
(struct elf_m68k_can_merge_gots_arg, elf_m68k_can_merge_gots_1,
elf_m68k_can_merge_gots): New traversal.
(struct elf_m68k_merge_gots_arg, elf_m68k_merge_gots_1,
elf_m68k_merge_gots): Ditto.
(struct elf_m68k_finalize_got_offsets_arg,
elf_m68k_finalize_got_offsets_1, elf_m68k_finalize_got_offsets): Ditto.
(struct elf_m68k_partition_multi_got_arg,
elf_m68k_partition_multi_got_1, elf_m68k_init_symndx2h_1,
elf_m68k_partition_multi_got): Ditto.
(elf_m68k_find_got_entry_ptr, elf_m68k_remove_got_entry): New static
functions.
(elf_m68k_copy_indirect_symbol): New static function implementing
a hook.
(elf_m68k_check_relocs): Update to add entries to multi-GOT.
(elf_m68k_gc_sweep_hook): Update to remove entries from multi-GOT.
(elf_m68k_always_size_sections): Assign BFDs to GOTs.
(elf_m68k_relocate_section): Update to properly handle GOT relocations.
(elf_m68k_finish_dynamic_symbol): Update to traverse all GOT entries
of a global symbol.
(bfd_elf_m68k_set_target_options): New function.
(bfd_elf32_bfd_link_hash_table_free): Define hook.
(bfd_elf32_bfd_final_link): Change expansion to bfd_elf_final_link
to skip generic calculation of GOT offsets.
(elf_backend_copy_indirect_symbol): Define hook.
* bfd-in.h (bfd_elf_m68k_set_target_options): Declare function.
* bfd-in2.h: Regenerate.
ld/
* configure.in (--enable-got): New option. Handle it.
* configure: Regenerate.
* config.in: Regenerate.
* emultempl/m68kelf.em: (got_handling_target_default): New shell
variable.
(GOT_HANDLING_TARGET_DEFAULT): New macro.
(GOT_HANDLING_DEFAULT): New macro. Initialize it from configure
option if one was given.
(got_handling): New static variable.
(elf_m68k_create_output_section_statements): New static function
implementing hook.
(PARSE_AND_LIST_PROLOGUE): Define shell variable.
(OPTION_GOT): New macro.
(PARSE_AND_LIST_LONGOPTS): Define shell variable. Specify
--got option.
(got): New linker option.
(PARSE_AND_LIST_OPTIONS): Define shell variable. Print help string
for --got option.
(PARSE_AND_LIST_ARGS_CASES): Define shell variable. Handle --got
option.
* ld.texinfo: Document --got=<type> option.
* gen-doc.texi: Add M68K.
* NEWS: Mention the new feature.
ld/testsuite/
* ld-m68k/got-12.s: New file.
* ld-m68k/got-13.s: New file.
* ld-m68k/got-14.s: New file.
* ld-m68k/got-15.s: New file.
* ld-m68k/got-34.s: New file.
* ld-m68k/got-35.s: New file.
* ld-m68k/got-single-12-ok.d: New dump test.
* ld-m68k/got-single-13-er.d: New dump test.
* ld-m68k/got-negative-14-ok.d: New dump test.
* ld-m68k/got-negative-15-er.d: New dump test.
* ld-m68k/got-negative-12-13-14-34-ok.d: New dump test.
* ld-m68k/got-negative-12-13-14-35-er.d: New dump test.
* ld-m68k/got-multigot-14-ok.d: New dump test.
* ld-m68k/got-multigot-15-er.d: New dump test.
* ld-m68k/got-multigot-12-13-14-34-35-ok.d: New dump test.
* ld-m68k/xgot-15.s: New source.
* ld-m68k/got-xgot-15-ok.d: New test.
* ld-m68k/got-xgot-12-13-14-15-34-35-ok.d: New test.
* ld-m68k/m68k.exp: Run new tests.
2008-05-21 20:01:37 +08:00
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#define GOT_HANDLING_SINGLE (0)
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#define GOT_HANDLING_NEGATIVE (1)
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#define GOT_HANDLING_MULTIGOT (2)
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#define GOT_HANDLING_TARGET_DEFAULT ${got_handling_target_default}
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/* How to generate GOT. */
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static int got_handling = GOT_HANDLING_DEFAULT;
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2000-09-22 08:41:50 +08:00
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#ifdef SUPPORT_EMBEDDED_RELOCS
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2003-06-27 08:38:25 +08:00
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static void check_sections (bfd *, asection *, void *);
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2000-09-22 08:41:50 +08:00
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#endif
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2000-09-16 02:52:52 +08:00
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2000-09-22 08:41:50 +08:00
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/* This function is run after all the input files have been opened. */
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2000-09-16 02:52:52 +08:00
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static void
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2003-06-27 08:38:25 +08:00
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m68k_elf_after_open (void)
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2000-09-16 02:52:52 +08:00
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{
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/* Call the standard elf routine. */
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gld${EMULATION_NAME}_after_open ();
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2000-09-22 08:41:50 +08:00
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#ifdef SUPPORT_EMBEDDED_RELOCS
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if (command_line.embedded_relocs
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2003-06-25 14:40:27 +08:00
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&& (! link_info.relocatable))
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2000-09-16 02:52:52 +08:00
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{
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2000-09-22 08:41:50 +08:00
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bfd *abfd;
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/* In the embedded relocs mode we create a .emreloc section for each
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input file with a nonzero .data section. The BFD backend will fill in
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these sections with magic numbers which can be used to relocate the
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data section at run time. */
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for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
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2000-09-16 02:52:52 +08:00
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{
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2000-09-22 08:41:50 +08:00
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asection *datasec;
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/* As first-order business, make sure that each input BFD is either
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COFF or ELF. We need to call a special BFD backend function to
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generate the embedded relocs, and we have such functions only for
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COFF and ELF. */
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if (bfd_get_flavour (abfd) != bfd_target_coff_flavour
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&& bfd_get_flavour (abfd) != bfd_target_elf_flavour)
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einfo ("%F%B: all input objects must be COFF or ELF for --embedded-relocs\n");
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datasec = bfd_get_section_by_name (abfd, ".data");
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/* Note that we assume that the reloc_count field has already
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been set up. We could call bfd_get_reloc_upper_bound, but
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that returns the size of a memory buffer rather than a reloc
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count. We do not want to call bfd_canonicalize_reloc,
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because although it would always work it would force us to
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read in the relocs into BFD canonical form, which would waste
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a significant amount of time and memory. */
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if (datasec != NULL && datasec->reloc_count > 0)
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{
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asection *relsec;
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2008-07-07 08:46:51 +08:00
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relsec = bfd_make_section_with_flags (abfd, ".emreloc",
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(SEC_ALLOC
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| SEC_LOAD
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| SEC_HAS_CONTENTS
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| SEC_IN_MEMORY));
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2000-09-22 08:41:50 +08:00
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if (relsec == NULL
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|| ! bfd_set_section_alignment (abfd, relsec, 2)
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|| ! bfd_set_section_size (abfd, relsec,
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datasec->reloc_count * 12))
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einfo ("%F%B: can not create .emreloc section: %E\n");
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}
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/* Double check that all other data sections are empty, as is
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required for embedded PIC code. */
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2003-06-28 13:28:54 +08:00
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bfd_map_over_sections (abfd, check_sections, datasec);
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2000-09-16 02:52:52 +08:00
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}
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}
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2000-09-22 08:41:50 +08:00
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#endif /* SUPPORT_EMBEDDED_RELOCS */
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2000-09-16 02:52:52 +08:00
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}
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2000-09-22 08:41:50 +08:00
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#ifdef SUPPORT_EMBEDDED_RELOCS
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2000-09-16 02:52:52 +08:00
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/* Check that of the data sections, only the .data section has
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relocs. This is called via bfd_map_over_sections. */
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static void
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2003-06-28 13:28:54 +08:00
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check_sections (bfd *abfd, asection *sec, void *datasec)
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2000-09-16 02:52:52 +08:00
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{
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if ((bfd_get_section_flags (abfd, sec) & SEC_DATA)
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2003-06-28 13:28:54 +08:00
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&& sec != datasec
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2000-09-16 02:52:52 +08:00
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&& sec->reloc_count != 0)
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einfo ("%B%X: section %s has relocs; can not use --embedded-relocs\n",
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abfd, bfd_get_section_name (abfd, sec));
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}
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2000-09-22 08:41:50 +08:00
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#endif /* SUPPORT_EMBEDDED_RELOCS */
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2000-09-16 02:52:52 +08:00
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/* This function is called after the section sizes and offsets have
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2000-09-22 08:41:50 +08:00
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been set. */
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2000-09-16 02:52:52 +08:00
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static void
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2003-06-27 08:38:25 +08:00
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m68k_elf_after_allocation (void)
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2000-09-16 02:52:52 +08:00
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{
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/* Call the standard elf routine. */
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2009-08-10 15:50:56 +08:00
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gld${EMULATION_NAME}_after_allocation ();
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2000-09-16 02:52:52 +08:00
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2000-09-22 08:41:50 +08:00
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#ifdef SUPPORT_EMBEDDED_RELOCS
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if (command_line.embedded_relocs
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2003-06-25 14:40:27 +08:00
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&& (! link_info.relocatable))
|
2000-09-16 02:52:52 +08:00
|
|
|
{
|
2000-09-22 08:41:50 +08:00
|
|
|
bfd *abfd;
|
2000-09-16 02:52:52 +08:00
|
|
|
|
2000-09-22 08:41:50 +08:00
|
|
|
/* If we are generating embedded relocs, call a special BFD backend
|
|
|
|
routine to do the work. */
|
|
|
|
for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link_next)
|
2000-09-16 02:52:52 +08:00
|
|
|
{
|
2000-09-22 08:41:50 +08:00
|
|
|
asection *datasec, *relsec;
|
|
|
|
char *errmsg;
|
|
|
|
|
|
|
|
datasec = bfd_get_section_by_name (abfd, ".data");
|
|
|
|
|
|
|
|
if (datasec == NULL || datasec->reloc_count == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
relsec = bfd_get_section_by_name (abfd, ".emreloc");
|
|
|
|
ASSERT (relsec != NULL);
|
|
|
|
|
|
|
|
if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
|
|
|
|
{
|
|
|
|
if (! bfd_m68k_coff_create_embedded_relocs (abfd, &link_info,
|
|
|
|
datasec, relsec,
|
|
|
|
&errmsg))
|
|
|
|
{
|
|
|
|
if (errmsg == NULL)
|
|
|
|
einfo ("%B%X: can not create runtime reloc information: %E\n",
|
|
|
|
abfd);
|
|
|
|
else
|
|
|
|
einfo ("%X%B: can not create runtime reloc information: %s\n",
|
|
|
|
abfd, errmsg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
|
|
|
{
|
|
|
|
if (! bfd_m68k_elf32_create_embedded_relocs (abfd, &link_info,
|
|
|
|
datasec, relsec,
|
|
|
|
&errmsg))
|
|
|
|
{
|
|
|
|
if (errmsg == NULL)
|
|
|
|
einfo ("%B%X: can not create runtime reloc information: %E\n",
|
|
|
|
abfd);
|
|
|
|
else
|
|
|
|
einfo ("%X%B: can not create runtime reloc information: %s\n",
|
|
|
|
abfd, errmsg);
|
|
|
|
}
|
|
|
|
}
|
2000-09-16 02:52:52 +08:00
|
|
|
else
|
2000-09-22 08:41:50 +08:00
|
|
|
abort ();
|
2000-09-16 02:52:52 +08:00
|
|
|
}
|
|
|
|
}
|
2000-09-22 08:41:50 +08:00
|
|
|
#endif /* SUPPORT_EMBEDDED_RELOCS */
|
2000-09-16 02:52:52 +08:00
|
|
|
}
|
|
|
|
|
Multi-GOT support for m68k.
bfd/
* elf32-m68k.c (struct elf_m68k_link_hash_entry: got_entry_key,
glist): New fields.
(struct elf_m68k_got_entry_key, struct elf_m68k_got_entry,
struct elf_m68k_got, struct elf_m68k_bfd2got_entry,
struct elf_m68k_multi_got): New data structures.
(struct elf_m68k_link_hash_table: local_gp_p, use_neg_got_offsets_p,
allow_multigot_p, multi_got_): New fields.
(elf_m68k_multi_got): New macro.
(elf_m68k_link_hash_newfunc): Initialize new fields of
struct elf_m68k_link_hash_entry.
(elf_m68k_link_hash_table_create): Initialize new fields of
struct elf_m68k_link_hash_table.
(elf_m68k_link_hash_table_free): New static function implementing hook.
(elf_m68k_init_got, elf_m68k_clear_got, elf_m68k_create_empty_got): New
static functions for struct elf_m68k_got.
(elf_m68k_init_got_entry_key, elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq): New static functions for
struct elf_m68k_got_entry.
(ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT,
ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT): New macros.
(enum elf_m68k_get_entry_howto): New enum.
(elf_m68k_get_got_entry, elf_m68k_update_got_entry_type,
elf_m68k_remove_got_entry_type): New static functions for
struct elf_m68k_got_entry.
(elf_m68k_add_entry_to_got): New static function.
(elf_m68k_bfd2got_entry_hash, elf_m68k_bfd2got_entry_eq,
elf_m68k_bfd2got_entry_del, elf_m68k_get_bfd2got_entry): New static
functions for struct elf_m68k_bfd2got_entry.
(struct elf_m68k_can_merge_gots_arg, elf_m68k_can_merge_gots_1,
elf_m68k_can_merge_gots): New traversal.
(struct elf_m68k_merge_gots_arg, elf_m68k_merge_gots_1,
elf_m68k_merge_gots): Ditto.
(struct elf_m68k_finalize_got_offsets_arg,
elf_m68k_finalize_got_offsets_1, elf_m68k_finalize_got_offsets): Ditto.
(struct elf_m68k_partition_multi_got_arg,
elf_m68k_partition_multi_got_1, elf_m68k_init_symndx2h_1,
elf_m68k_partition_multi_got): Ditto.
(elf_m68k_find_got_entry_ptr, elf_m68k_remove_got_entry): New static
functions.
(elf_m68k_copy_indirect_symbol): New static function implementing
a hook.
(elf_m68k_check_relocs): Update to add entries to multi-GOT.
(elf_m68k_gc_sweep_hook): Update to remove entries from multi-GOT.
(elf_m68k_always_size_sections): Assign BFDs to GOTs.
(elf_m68k_relocate_section): Update to properly handle GOT relocations.
(elf_m68k_finish_dynamic_symbol): Update to traverse all GOT entries
of a global symbol.
(bfd_elf_m68k_set_target_options): New function.
(bfd_elf32_bfd_link_hash_table_free): Define hook.
(bfd_elf32_bfd_final_link): Change expansion to bfd_elf_final_link
to skip generic calculation of GOT offsets.
(elf_backend_copy_indirect_symbol): Define hook.
* bfd-in.h (bfd_elf_m68k_set_target_options): Declare function.
* bfd-in2.h: Regenerate.
ld/
* configure.in (--enable-got): New option. Handle it.
* configure: Regenerate.
* config.in: Regenerate.
* emultempl/m68kelf.em: (got_handling_target_default): New shell
variable.
(GOT_HANDLING_TARGET_DEFAULT): New macro.
(GOT_HANDLING_DEFAULT): New macro. Initialize it from configure
option if one was given.
(got_handling): New static variable.
(elf_m68k_create_output_section_statements): New static function
implementing hook.
(PARSE_AND_LIST_PROLOGUE): Define shell variable.
(OPTION_GOT): New macro.
(PARSE_AND_LIST_LONGOPTS): Define shell variable. Specify
--got option.
(got): New linker option.
(PARSE_AND_LIST_OPTIONS): Define shell variable. Print help string
for --got option.
(PARSE_AND_LIST_ARGS_CASES): Define shell variable. Handle --got
option.
* ld.texinfo: Document --got=<type> option.
* gen-doc.texi: Add M68K.
* NEWS: Mention the new feature.
ld/testsuite/
* ld-m68k/got-12.s: New file.
* ld-m68k/got-13.s: New file.
* ld-m68k/got-14.s: New file.
* ld-m68k/got-15.s: New file.
* ld-m68k/got-34.s: New file.
* ld-m68k/got-35.s: New file.
* ld-m68k/got-single-12-ok.d: New dump test.
* ld-m68k/got-single-13-er.d: New dump test.
* ld-m68k/got-negative-14-ok.d: New dump test.
* ld-m68k/got-negative-15-er.d: New dump test.
* ld-m68k/got-negative-12-13-14-34-ok.d: New dump test.
* ld-m68k/got-negative-12-13-14-35-er.d: New dump test.
* ld-m68k/got-multigot-14-ok.d: New dump test.
* ld-m68k/got-multigot-15-er.d: New dump test.
* ld-m68k/got-multigot-12-13-14-34-35-ok.d: New dump test.
* ld-m68k/xgot-15.s: New source.
* ld-m68k/got-xgot-15-ok.d: New test.
* ld-m68k/got-xgot-12-13-14-15-34-35-ok.d: New test.
* ld-m68k/m68k.exp: Run new tests.
2008-05-21 20:01:37 +08:00
|
|
|
/* 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
|
|
|
|
elf_m68k_create_output_section_statements (void)
|
|
|
|
{
|
|
|
|
bfd_elf_m68k_set_target_options (&link_info, got_handling);
|
|
|
|
}
|
|
|
|
|
2000-09-16 02:52:52 +08:00
|
|
|
EOF
|
|
|
|
|
Multi-GOT support for m68k.
bfd/
* elf32-m68k.c (struct elf_m68k_link_hash_entry: got_entry_key,
glist): New fields.
(struct elf_m68k_got_entry_key, struct elf_m68k_got_entry,
struct elf_m68k_got, struct elf_m68k_bfd2got_entry,
struct elf_m68k_multi_got): New data structures.
(struct elf_m68k_link_hash_table: local_gp_p, use_neg_got_offsets_p,
allow_multigot_p, multi_got_): New fields.
(elf_m68k_multi_got): New macro.
(elf_m68k_link_hash_newfunc): Initialize new fields of
struct elf_m68k_link_hash_entry.
(elf_m68k_link_hash_table_create): Initialize new fields of
struct elf_m68k_link_hash_table.
(elf_m68k_link_hash_table_free): New static function implementing hook.
(elf_m68k_init_got, elf_m68k_clear_got, elf_m68k_create_empty_got): New
static functions for struct elf_m68k_got.
(elf_m68k_init_got_entry_key, elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq): New static functions for
struct elf_m68k_got_entry.
(ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT,
ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT): New macros.
(enum elf_m68k_get_entry_howto): New enum.
(elf_m68k_get_got_entry, elf_m68k_update_got_entry_type,
elf_m68k_remove_got_entry_type): New static functions for
struct elf_m68k_got_entry.
(elf_m68k_add_entry_to_got): New static function.
(elf_m68k_bfd2got_entry_hash, elf_m68k_bfd2got_entry_eq,
elf_m68k_bfd2got_entry_del, elf_m68k_get_bfd2got_entry): New static
functions for struct elf_m68k_bfd2got_entry.
(struct elf_m68k_can_merge_gots_arg, elf_m68k_can_merge_gots_1,
elf_m68k_can_merge_gots): New traversal.
(struct elf_m68k_merge_gots_arg, elf_m68k_merge_gots_1,
elf_m68k_merge_gots): Ditto.
(struct elf_m68k_finalize_got_offsets_arg,
elf_m68k_finalize_got_offsets_1, elf_m68k_finalize_got_offsets): Ditto.
(struct elf_m68k_partition_multi_got_arg,
elf_m68k_partition_multi_got_1, elf_m68k_init_symndx2h_1,
elf_m68k_partition_multi_got): Ditto.
(elf_m68k_find_got_entry_ptr, elf_m68k_remove_got_entry): New static
functions.
(elf_m68k_copy_indirect_symbol): New static function implementing
a hook.
(elf_m68k_check_relocs): Update to add entries to multi-GOT.
(elf_m68k_gc_sweep_hook): Update to remove entries from multi-GOT.
(elf_m68k_always_size_sections): Assign BFDs to GOTs.
(elf_m68k_relocate_section): Update to properly handle GOT relocations.
(elf_m68k_finish_dynamic_symbol): Update to traverse all GOT entries
of a global symbol.
(bfd_elf_m68k_set_target_options): New function.
(bfd_elf32_bfd_link_hash_table_free): Define hook.
(bfd_elf32_bfd_final_link): Change expansion to bfd_elf_final_link
to skip generic calculation of GOT offsets.
(elf_backend_copy_indirect_symbol): Define hook.
* bfd-in.h (bfd_elf_m68k_set_target_options): Declare function.
* bfd-in2.h: Regenerate.
ld/
* configure.in (--enable-got): New option. Handle it.
* configure: Regenerate.
* config.in: Regenerate.
* emultempl/m68kelf.em: (got_handling_target_default): New shell
variable.
(GOT_HANDLING_TARGET_DEFAULT): New macro.
(GOT_HANDLING_DEFAULT): New macro. Initialize it from configure
option if one was given.
(got_handling): New static variable.
(elf_m68k_create_output_section_statements): New static function
implementing hook.
(PARSE_AND_LIST_PROLOGUE): Define shell variable.
(OPTION_GOT): New macro.
(PARSE_AND_LIST_LONGOPTS): Define shell variable. Specify
--got option.
(got): New linker option.
(PARSE_AND_LIST_OPTIONS): Define shell variable. Print help string
for --got option.
(PARSE_AND_LIST_ARGS_CASES): Define shell variable. Handle --got
option.
* ld.texinfo: Document --got=<type> option.
* gen-doc.texi: Add M68K.
* NEWS: Mention the new feature.
ld/testsuite/
* ld-m68k/got-12.s: New file.
* ld-m68k/got-13.s: New file.
* ld-m68k/got-14.s: New file.
* ld-m68k/got-15.s: New file.
* ld-m68k/got-34.s: New file.
* ld-m68k/got-35.s: New file.
* ld-m68k/got-single-12-ok.d: New dump test.
* ld-m68k/got-single-13-er.d: New dump test.
* ld-m68k/got-negative-14-ok.d: New dump test.
* ld-m68k/got-negative-15-er.d: New dump test.
* ld-m68k/got-negative-12-13-14-34-ok.d: New dump test.
* ld-m68k/got-negative-12-13-14-35-er.d: New dump test.
* ld-m68k/got-multigot-14-ok.d: New dump test.
* ld-m68k/got-multigot-15-er.d: New dump test.
* ld-m68k/got-multigot-12-13-14-34-35-ok.d: New dump test.
* ld-m68k/xgot-15.s: New source.
* ld-m68k/got-xgot-15-ok.d: New test.
* ld-m68k/got-xgot-12-13-14-15-34-35-ok.d: New test.
* ld-m68k/m68k.exp: Run new tests.
2008-05-21 20:01:37 +08:00
|
|
|
# Define some shell vars to insert bits of code into the standard elf
|
|
|
|
# parse_args and list_options functions.
|
|
|
|
#
|
|
|
|
PARSE_AND_LIST_PROLOGUE='
|
|
|
|
#define OPTION_GOT 301
|
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_LONGOPTS='
|
|
|
|
{ "got", required_argument, NULL, OPTION_GOT},
|
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_OPTIONS='
|
|
|
|
fprintf (file, _(" --got=<type> Specify GOT handling scheme\n"));
|
|
|
|
'
|
|
|
|
|
|
|
|
PARSE_AND_LIST_ARGS_CASES='
|
|
|
|
case OPTION_GOT:
|
|
|
|
if (strcmp (optarg, "target") == 0)
|
|
|
|
got_handling = GOT_HANDLING_TARGET_DEFAULT;
|
|
|
|
else if (strcmp (optarg, "single") == 0)
|
|
|
|
got_handling = 0;
|
|
|
|
else if (strcmp (optarg, "negative") == 0)
|
|
|
|
got_handling = 1;
|
|
|
|
else if (strcmp (optarg, "multigot") == 0)
|
|
|
|
got_handling = 2;
|
|
|
|
else
|
|
|
|
einfo (_("Unrecognized --got argument '\''%s'\''.\n"), optarg);
|
|
|
|
break;
|
|
|
|
'
|
|
|
|
|
2000-09-16 02:52:52 +08:00
|
|
|
# We have our own after_open and after_allocation functions, but they call
|
|
|
|
# the standard routines, so give them a different name.
|
|
|
|
LDEMUL_AFTER_OPEN=m68k_elf_after_open
|
|
|
|
LDEMUL_AFTER_ALLOCATION=m68k_elf_after_allocation
|
Multi-GOT support for m68k.
bfd/
* elf32-m68k.c (struct elf_m68k_link_hash_entry: got_entry_key,
glist): New fields.
(struct elf_m68k_got_entry_key, struct elf_m68k_got_entry,
struct elf_m68k_got, struct elf_m68k_bfd2got_entry,
struct elf_m68k_multi_got): New data structures.
(struct elf_m68k_link_hash_table: local_gp_p, use_neg_got_offsets_p,
allow_multigot_p, multi_got_): New fields.
(elf_m68k_multi_got): New macro.
(elf_m68k_link_hash_newfunc): Initialize new fields of
struct elf_m68k_link_hash_entry.
(elf_m68k_link_hash_table_create): Initialize new fields of
struct elf_m68k_link_hash_table.
(elf_m68k_link_hash_table_free): New static function implementing hook.
(elf_m68k_init_got, elf_m68k_clear_got, elf_m68k_create_empty_got): New
static functions for struct elf_m68k_got.
(elf_m68k_init_got_entry_key, elf_m68k_got_entry_hash,
elf_m68k_got_entry_eq): New static functions for
struct elf_m68k_got_entry.
(ELF_M68K_REL_8O_MAX_N_ENTRIES_IN_GOT,
ELF_M68K_REL_8O_16O_MAX_N_ENTRIES_IN_GOT): New macros.
(enum elf_m68k_get_entry_howto): New enum.
(elf_m68k_get_got_entry, elf_m68k_update_got_entry_type,
elf_m68k_remove_got_entry_type): New static functions for
struct elf_m68k_got_entry.
(elf_m68k_add_entry_to_got): New static function.
(elf_m68k_bfd2got_entry_hash, elf_m68k_bfd2got_entry_eq,
elf_m68k_bfd2got_entry_del, elf_m68k_get_bfd2got_entry): New static
functions for struct elf_m68k_bfd2got_entry.
(struct elf_m68k_can_merge_gots_arg, elf_m68k_can_merge_gots_1,
elf_m68k_can_merge_gots): New traversal.
(struct elf_m68k_merge_gots_arg, elf_m68k_merge_gots_1,
elf_m68k_merge_gots): Ditto.
(struct elf_m68k_finalize_got_offsets_arg,
elf_m68k_finalize_got_offsets_1, elf_m68k_finalize_got_offsets): Ditto.
(struct elf_m68k_partition_multi_got_arg,
elf_m68k_partition_multi_got_1, elf_m68k_init_symndx2h_1,
elf_m68k_partition_multi_got): Ditto.
(elf_m68k_find_got_entry_ptr, elf_m68k_remove_got_entry): New static
functions.
(elf_m68k_copy_indirect_symbol): New static function implementing
a hook.
(elf_m68k_check_relocs): Update to add entries to multi-GOT.
(elf_m68k_gc_sweep_hook): Update to remove entries from multi-GOT.
(elf_m68k_always_size_sections): Assign BFDs to GOTs.
(elf_m68k_relocate_section): Update to properly handle GOT relocations.
(elf_m68k_finish_dynamic_symbol): Update to traverse all GOT entries
of a global symbol.
(bfd_elf_m68k_set_target_options): New function.
(bfd_elf32_bfd_link_hash_table_free): Define hook.
(bfd_elf32_bfd_final_link): Change expansion to bfd_elf_final_link
to skip generic calculation of GOT offsets.
(elf_backend_copy_indirect_symbol): Define hook.
* bfd-in.h (bfd_elf_m68k_set_target_options): Declare function.
* bfd-in2.h: Regenerate.
ld/
* configure.in (--enable-got): New option. Handle it.
* configure: Regenerate.
* config.in: Regenerate.
* emultempl/m68kelf.em: (got_handling_target_default): New shell
variable.
(GOT_HANDLING_TARGET_DEFAULT): New macro.
(GOT_HANDLING_DEFAULT): New macro. Initialize it from configure
option if one was given.
(got_handling): New static variable.
(elf_m68k_create_output_section_statements): New static function
implementing hook.
(PARSE_AND_LIST_PROLOGUE): Define shell variable.
(OPTION_GOT): New macro.
(PARSE_AND_LIST_LONGOPTS): Define shell variable. Specify
--got option.
(got): New linker option.
(PARSE_AND_LIST_OPTIONS): Define shell variable. Print help string
for --got option.
(PARSE_AND_LIST_ARGS_CASES): Define shell variable. Handle --got
option.
* ld.texinfo: Document --got=<type> option.
* gen-doc.texi: Add M68K.
* NEWS: Mention the new feature.
ld/testsuite/
* ld-m68k/got-12.s: New file.
* ld-m68k/got-13.s: New file.
* ld-m68k/got-14.s: New file.
* ld-m68k/got-15.s: New file.
* ld-m68k/got-34.s: New file.
* ld-m68k/got-35.s: New file.
* ld-m68k/got-single-12-ok.d: New dump test.
* ld-m68k/got-single-13-er.d: New dump test.
* ld-m68k/got-negative-14-ok.d: New dump test.
* ld-m68k/got-negative-15-er.d: New dump test.
* ld-m68k/got-negative-12-13-14-34-ok.d: New dump test.
* ld-m68k/got-negative-12-13-14-35-er.d: New dump test.
* ld-m68k/got-multigot-14-ok.d: New dump test.
* ld-m68k/got-multigot-15-er.d: New dump test.
* ld-m68k/got-multigot-12-13-14-34-35-ok.d: New dump test.
* ld-m68k/xgot-15.s: New source.
* ld-m68k/got-xgot-15-ok.d: New test.
* ld-m68k/got-xgot-12-13-14-15-34-35-ok.d: New test.
* ld-m68k/m68k.exp: Run new tests.
2008-05-21 20:01:37 +08:00
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LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=elf_m68k_create_output_section_statements
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