1993-07-20 03:12:59 +08:00
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/* SPARC-specific support for 32-bit ELF
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1997-03-22 02:09:12 +08:00
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Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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1993-07-20 03:12:59 +08:00
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This file is part of BFD, the Binary File Descriptor library.
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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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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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1995-07-08 06:49:42 +08:00
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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1993-07-20 03:12:59 +08:00
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#include "bfd.h"
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#include "sysdep.h"
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Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
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#include "bfdlink.h"
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1993-07-20 03:12:59 +08:00
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#include "libbfd.h"
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1995-11-28 01:42:27 +08:00
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#include "elf-bfd.h"
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* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
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#include "elf/sparc.h"
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1993-07-20 03:12:59 +08:00
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1996-04-03 03:57:33 +08:00
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static reloc_howto_type *elf32_sparc_reloc_type_lookup
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Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
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static void elf32_sparc_info_to_howto
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Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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1994-10-11 04:30:32 +08:00
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static boolean elf32_sparc_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
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static boolean elf32_sparc_adjust_dynamic_symbol
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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1994-10-28 05:25:31 +08:00
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static boolean elf32_sparc_adjust_dynindx
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PARAMS ((struct elf_link_hash_entry *, PTR));
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Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
static boolean elf32_sparc_size_dynamic_sections
|
|
|
|
|
|
PARAMS ((bfd *, struct bfd_link_info *));
|
|
|
|
|
|
static boolean elf32_sparc_relocate_section
|
|
|
|
|
|
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
static boolean elf32_sparc_finish_dynamic_symbol
|
|
|
|
|
|
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
|
|
|
|
|
|
Elf_Internal_Sym *));
|
|
|
|
|
|
static boolean elf32_sparc_finish_dynamic_sections
|
|
|
|
|
|
PARAMS ((bfd *, struct bfd_link_info *));
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
static boolean elf32_sparc_merge_private_bfd_data PARAMS ((bfd *, bfd *));
|
|
|
|
|
|
static boolean elf32_sparc_object_p
|
|
|
|
|
|
PARAMS ((bfd *));
|
|
|
|
|
|
static void elf32_sparc_final_write_processing
|
|
|
|
|
|
PARAMS ((bfd *, boolean));
|
1996-04-03 03:57:33 +08:00
|
|
|
|
|
|
|
|
|
|
/* The howto table and associated functions.
|
|
|
|
|
|
??? elf64-sparc.c has its own copy for the moment to ease transition
|
|
|
|
|
|
since some of the relocation values have changed. At some point we'll
|
|
|
|
|
|
want elf64-sparc.c to switch over and use this table.
|
|
|
|
|
|
??? Do we want to recognize (or flag as errors) some of the 64 bit entries
|
|
|
|
|
|
if the target is elf32-sparc.
|
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
static bfd_reloc_status_type sparc_elf_notsupported_reloc
|
|
|
|
|
|
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
|
|
|
|
|
static bfd_reloc_status_type sparc_elf_wdisp16_reloc
|
|
|
|
|
|
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
|
|
|
|
|
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
reloc_howto_type _bfd_sparc_elf_howto_table[] =
|
1993-07-20 03:12:59 +08:00
|
|
|
|
{
|
1996-04-03 03:57:33 +08:00
|
|
|
|
HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0x00ffffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC10, 0,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC22, 10,2,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_WPLT30, 2,2,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PLT32", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_10, 0,2,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_11, 0,2,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
|
|
|
|
|
|
/* ??? If we need to handle R_SPARC_64 then we need (figuratively)
|
|
|
|
|
|
--enable-64-bit-bfd. That causes objdump to print address as 64 bits
|
|
|
|
|
|
which we really don't want on an elf32-sparc system. There may be other
|
|
|
|
|
|
consequences which we may not want (at least not until it's proven they're
|
|
|
|
|
|
necessary) so for now these are only enabled ifdef BFD64. */
|
|
|
|
|
|
#ifdef BFD64
|
|
|
|
|
|
HOWTO(R_SPARC_64, 0,4,00,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,~ (bfd_vma) 0, true),
|
|
|
|
|
|
/* ??? These don't make sense except in 64 bit systems so they're disabled
|
|
|
|
|
|
ifndef BFD64 too (for now). */
|
|
|
|
|
|
HOWTO(R_SPARC_OLO10, 0,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_OLO10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HH22, 42,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HM10, 32,2,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_LM22, 10,2,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_HH22, 42,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_HM10, 32,2,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_LM22, 10,2,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
|
|
|
|
|
|
#else
|
|
|
|
|
|
HOWTO(R_SPARC_64, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_64", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_OLO10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_OLO10", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HH22", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_HM10", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_LM22", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_HH22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HH22", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_HM10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_HM10", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_PC_LM22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsupported_reloc, "R_SPARC_PC_LM22", false,0,0x00000000,true),
|
1993-07-20 03:12:59 +08:00
|
|
|
|
#endif
|
1996-04-03 03:57:33 +08:00
|
|
|
|
HOWTO(R_SPARC_WDISP16, 2,2,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
|
|
|
|
|
|
HOWTO(R_SPARC_WDISP19, 2,2,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
HOWTO(R_SPARC_GLOB_JMP, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_JMP",false,0,0x00000000,true),
|
1996-04-03 03:57:33 +08:00
|
|
|
|
HOWTO(R_SPARC_7, 0,2, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
|
|
|
|
|
|
HOWTO(R_SPARC_5, 0,2, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
|
|
|
|
|
|
HOWTO(R_SPARC_6, 0,2, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
|
1993-07-20 03:12:59 +08:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct elf_reloc_map {
|
|
|
|
|
|
unsigned char bfd_reloc_val;
|
|
|
|
|
|
unsigned char elf_reloc_val;
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static CONST struct elf_reloc_map sparc_reloc_map[] =
|
|
|
|
|
|
{
|
|
|
|
|
|
{ BFD_RELOC_NONE, R_SPARC_NONE, },
|
|
|
|
|
|
{ BFD_RELOC_16, R_SPARC_16, },
|
|
|
|
|
|
{ BFD_RELOC_8, R_SPARC_8 },
|
|
|
|
|
|
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
|
1996-04-03 03:57:33 +08:00
|
|
|
|
/* ??? This might cause us to need separate functions in elf{32,64}-sparc.c
|
|
|
|
|
|
(we could still have just one table), but is this reloc ever used? */
|
1993-07-20 03:12:59 +08:00
|
|
|
|
{ BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */
|
|
|
|
|
|
{ BFD_RELOC_32, R_SPARC_32 },
|
|
|
|
|
|
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
|
|
|
|
|
|
{ BFD_RELOC_HI22, R_SPARC_HI22 },
|
|
|
|
|
|
{ BFD_RELOC_LO10, R_SPARC_LO10, },
|
|
|
|
|
|
{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC22, R_SPARC_22 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC13, R_SPARC_13 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
|
|
|
|
|
|
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
|
1996-04-03 03:57:33 +08:00
|
|
|
|
/* ??? Doesn't dwarf use this? */
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/*{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */
|
1996-04-03 03:57:33 +08:00
|
|
|
|
{BFD_RELOC_SPARC_10, R_SPARC_10},
|
|
|
|
|
|
{BFD_RELOC_SPARC_11, R_SPARC_11},
|
|
|
|
|
|
{BFD_RELOC_SPARC_64, R_SPARC_64},
|
|
|
|
|
|
{BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10},
|
|
|
|
|
|
{BFD_RELOC_SPARC_HH22, R_SPARC_HH22},
|
|
|
|
|
|
{BFD_RELOC_SPARC_HM10, R_SPARC_HM10},
|
|
|
|
|
|
{BFD_RELOC_SPARC_LM22, R_SPARC_LM22},
|
|
|
|
|
|
{BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22},
|
|
|
|
|
|
{BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10},
|
|
|
|
|
|
{BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22},
|
|
|
|
|
|
{BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16},
|
|
|
|
|
|
{BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19},
|
|
|
|
|
|
{BFD_RELOC_SPARC_GLOB_JMP, R_SPARC_GLOB_JMP},
|
|
|
|
|
|
{BFD_RELOC_SPARC_7, R_SPARC_7},
|
|
|
|
|
|
{BFD_RELOC_SPARC_5, R_SPARC_5},
|
|
|
|
|
|
{BFD_RELOC_SPARC_6, R_SPARC_6},
|
1993-07-20 03:12:59 +08:00
|
|
|
|
};
|
|
|
|
|
|
|
1995-03-14 04:39:36 +08:00
|
|
|
|
static reloc_howto_type *
|
1996-04-03 03:57:33 +08:00
|
|
|
|
elf32_sparc_reloc_type_lookup (abfd, code)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
bfd_reloc_code_real_type code;
|
1993-07-20 03:12:59 +08:00
|
|
|
|
{
|
1995-11-28 01:42:27 +08:00
|
|
|
|
unsigned int i;
|
1993-07-20 03:12:59 +08:00
|
|
|
|
for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (sparc_reloc_map[i].bfd_reloc_val == code)
|
1996-04-03 03:57:33 +08:00
|
|
|
|
return &_bfd_sparc_elf_howto_table[(int) sparc_reloc_map[i].elf_reloc_val];
|
1993-07-20 03:12:59 +08:00
|
|
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
/* We need to use ELF32_R_TYPE so we have our own copy of this function,
|
|
|
|
|
|
and elf64-sparc.c has its own copy. */
|
|
|
|
|
|
|
1993-07-20 03:12:59 +08:00
|
|
|
|
static void
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
elf32_sparc_info_to_howto (abfd, cache_ptr, dst)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
arelent *cache_ptr;
|
|
|
|
|
|
Elf_Internal_Rela *dst;
|
1993-07-20 03:12:59 +08:00
|
|
|
|
{
|
|
|
|
|
|
BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max);
|
1996-04-03 03:57:33 +08:00
|
|
|
|
cache_ptr->howto = &_bfd_sparc_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
|
1993-07-20 03:12:59 +08:00
|
|
|
|
}
|
1996-04-03 03:57:33 +08:00
|
|
|
|
|
|
|
|
|
|
/* For unsupported relocs. */
|
|
|
|
|
|
|
|
|
|
|
|
static bfd_reloc_status_type
|
|
|
|
|
|
sparc_elf_notsupported_reloc (abfd,
|
|
|
|
|
|
reloc_entry,
|
|
|
|
|
|
symbol,
|
|
|
|
|
|
data,
|
|
|
|
|
|
input_section,
|
|
|
|
|
|
output_bfd,
|
|
|
|
|
|
error_message)
|
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
arelent *reloc_entry;
|
|
|
|
|
|
asymbol *symbol;
|
|
|
|
|
|
PTR data;
|
|
|
|
|
|
asection *input_section;
|
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
char **error_message;
|
|
|
|
|
|
{
|
|
|
|
|
|
return bfd_reloc_notsupported;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Handle the WDISP16 reloc. */
|
|
|
|
|
|
|
|
|
|
|
|
static bfd_reloc_status_type
|
|
|
|
|
|
sparc_elf_wdisp16_reloc (abfd,
|
|
|
|
|
|
reloc_entry,
|
|
|
|
|
|
symbol,
|
|
|
|
|
|
data,
|
|
|
|
|
|
input_section,
|
|
|
|
|
|
output_bfd,
|
|
|
|
|
|
error_message)
|
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
arelent *reloc_entry;
|
|
|
|
|
|
asymbol *symbol;
|
|
|
|
|
|
PTR data;
|
|
|
|
|
|
asection *input_section;
|
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
char **error_message;
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_vma relocation;
|
|
|
|
|
|
bfd_vma x;
|
1993-07-20 03:12:59 +08:00
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
if (output_bfd != (bfd *) NULL
|
|
|
|
|
|
&& (symbol->flags & BSF_SECTION_SYM) == 0
|
|
|
|
|
|
&& (! reloc_entry->howto->partial_inplace
|
|
|
|
|
|
|| reloc_entry->addend == 0))
|
|
|
|
|
|
{
|
|
|
|
|
|
reloc_entry->address += input_section->output_offset;
|
|
|
|
|
|
return bfd_reloc_ok;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (output_bfd != NULL)
|
|
|
|
|
|
return bfd_reloc_continue;
|
|
|
|
|
|
|
|
|
|
|
|
if (reloc_entry->address > input_section->_cooked_size)
|
|
|
|
|
|
return bfd_reloc_outofrange;
|
|
|
|
|
|
|
|
|
|
|
|
relocation = (symbol->value
|
|
|
|
|
|
+ symbol->section->output_section->vma
|
|
|
|
|
|
+ symbol->section->output_offset);
|
|
|
|
|
|
relocation += reloc_entry->addend;
|
|
|
|
|
|
relocation -= (input_section->output_section->vma
|
|
|
|
|
|
+ input_section->output_offset);
|
|
|
|
|
|
relocation -= reloc_entry->address;
|
|
|
|
|
|
|
|
|
|
|
|
x = bfd_get_32 (abfd, (char *) data + reloc_entry->address);
|
|
|
|
|
|
x |= ((((relocation >> 2) & 0xc000) << 6)
|
|
|
|
|
|
| ((relocation >> 2) & 0x3fff));
|
|
|
|
|
|
bfd_put_32 (abfd, x, (char *) data + reloc_entry->address);
|
|
|
|
|
|
|
|
|
|
|
|
if ((bfd_signed_vma) relocation < - 0x40000
|
|
|
|
|
|
|| (bfd_signed_vma) relocation > 0x3ffff)
|
|
|
|
|
|
return bfd_reloc_overflow;
|
|
|
|
|
|
else
|
|
|
|
|
|
return bfd_reloc_ok;
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
/* Functions for the SPARC ELF linker. */
|
|
|
|
|
|
|
|
|
|
|
|
/* The name of the dynamic interpreter. This is put in the .interp
|
|
|
|
|
|
section. */
|
|
|
|
|
|
|
|
|
|
|
|
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
|
|
|
|
|
|
|
|
|
|
|
|
/* The nop opcode we use. */
|
|
|
|
|
|
|
|
|
|
|
|
#define SPARC_NOP 0x01000000
|
|
|
|
|
|
|
|
|
|
|
|
/* The size in bytes of an entry in the procedure linkage table. */
|
|
|
|
|
|
|
|
|
|
|
|
#define PLT_ENTRY_SIZE 12
|
|
|
|
|
|
|
|
|
|
|
|
/* The first four entries in a procedure linkage table are reserved,
|
|
|
|
|
|
and the initial contents are unimportant (we zero them out).
|
|
|
|
|
|
Subsequent entries look like this. See the SVR4 ABI SPARC
|
|
|
|
|
|
supplement to see how this works. */
|
|
|
|
|
|
|
|
|
|
|
|
/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
|
|
|
|
|
|
#define PLT_ENTRY_WORD0 0x03000000
|
|
|
|
|
|
/* b,a .plt0. We fill in the offset later. */
|
|
|
|
|
|
#define PLT_ENTRY_WORD1 0x30800000
|
|
|
|
|
|
/* nop. */
|
|
|
|
|
|
#define PLT_ENTRY_WORD2 SPARC_NOP
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* Look through the relocs for a section during the first phase, and
|
|
|
|
|
|
allocate space in the global offset table or procedure linkage
|
|
|
|
|
|
table. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_check_relocs (abfd, info, sec, relocs)
|
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
asection *sec;
|
|
|
|
|
|
const Elf_Internal_Rela *relocs;
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
|
|
|
|
struct elf_link_hash_entry **sym_hashes;
|
|
|
|
|
|
bfd_vma *local_got_offsets;
|
|
|
|
|
|
const Elf_Internal_Rela *rel;
|
|
|
|
|
|
const Elf_Internal_Rela *rel_end;
|
|
|
|
|
|
asection *sgot;
|
|
|
|
|
|
asection *srelgot;
|
|
|
|
|
|
asection *sreloc;
|
|
|
|
|
|
|
|
|
|
|
|
if (info->relocateable)
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
|
|
|
sym_hashes = elf_sym_hashes (abfd);
|
|
|
|
|
|
local_got_offsets = elf_local_got_offsets (abfd);
|
|
|
|
|
|
|
|
|
|
|
|
sgot = NULL;
|
|
|
|
|
|
srelgot = NULL;
|
|
|
|
|
|
sreloc = NULL;
|
|
|
|
|
|
|
|
|
|
|
|
rel_end = relocs + sec->reloc_count;
|
|
|
|
|
|
for (rel = relocs; rel < rel_end; rel++)
|
|
|
|
|
|
{
|
1995-11-28 01:42:27 +08:00
|
|
|
|
unsigned long r_symndx;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
|
h = NULL;
|
|
|
|
|
|
else
|
|
|
|
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
|
|
|
|
|
|
|
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
|
|
|
|
{
|
|
|
|
|
|
case R_SPARC_GOT10:
|
|
|
|
|
|
case R_SPARC_GOT13:
|
|
|
|
|
|
case R_SPARC_GOT22:
|
|
|
|
|
|
/* This symbol requires a global offset table entry. */
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (dynobj == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* Create the .got section. */
|
|
|
|
|
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
|
|
|
|
if (! _bfd_elf_create_got_section (dynobj, info))
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if (sgot == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
BFD_ASSERT (sgot != NULL);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (srelgot == NULL
|
|
|
|
|
|
&& (h != NULL || info->shared))
|
|
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
|
|
|
if (srelgot == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
srelgot = bfd_make_section (dynobj, ".rela.got");
|
|
|
|
|
|
if (srelgot == NULL
|
|
|
|
|
|
|| ! bfd_set_section_flags (dynobj, srelgot,
|
|
|
|
|
|
(SEC_ALLOC
|
|
|
|
|
|
| SEC_LOAD
|
|
|
|
|
|
| SEC_HAS_CONTENTS
|
|
|
|
|
|
| SEC_IN_MEMORY
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
| SEC_LINKER_CREATED
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
| SEC_READONLY))
|
|
|
|
|
|
|| ! bfd_set_section_alignment (dynobj, srelgot, 2))
|
1994-10-11 04:30:32 +08:00
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (h != NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (h->got_offset != (bfd_vma) -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* We have already allocated space in the .got. */
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
h->got_offset = sgot->_raw_size;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|
|
|
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
|
|
|
|
|
if (h->dynindx == -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
srelgot->_raw_size += sizeof (Elf32_External_Rela);
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
/* This is a global offset table entry for a local
|
|
|
|
|
|
symbol. */
|
|
|
|
|
|
if (local_got_offsets == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
size_t size;
|
1995-11-28 01:42:27 +08:00
|
|
|
|
register unsigned int i;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
|
|
|
|
|
size = symtab_hdr->sh_info * sizeof (bfd_vma);
|
|
|
|
|
|
local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
|
|
|
|
|
|
if (local_got_offsets == NULL)
|
1995-11-30 06:05:37 +08:00
|
|
|
|
return false;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
elf_local_got_offsets (abfd) = local_got_offsets;
|
|
|
|
|
|
for (i = 0; i < symtab_hdr->sh_info; i++)
|
|
|
|
|
|
local_got_offsets[i] = (bfd_vma) -1;
|
|
|
|
|
|
}
|
|
|
|
|
|
if (local_got_offsets[r_symndx] != (bfd_vma) -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* We have already allocated space in the .got. */
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
local_got_offsets[r_symndx] = sgot->_raw_size;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|
|
|
|
|
|
if (info->shared)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* If we are generating a shared object, we need to
|
|
|
|
|
|
output a R_SPARC_RELATIVE reloc so that the
|
|
|
|
|
|
dynamic linker can adjust this GOT entry. */
|
|
|
|
|
|
srelgot->_raw_size += sizeof (Elf32_External_Rela);
|
|
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
sgot->_raw_size += 4;
|
|
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
/* If the .got section is more than 0x1000 bytes, we add
|
|
|
|
|
|
0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
|
|
|
|
|
|
bit relocations have a greater chance of working. */
|
|
|
|
|
|
if (sgot->_raw_size >= 0x1000
|
|
|
|
|
|
&& elf_hash_table (info)->hgot->root.u.def.value == 0)
|
|
|
|
|
|
elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case R_SPARC_WPLT30:
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* This symbol requires a procedure linkage table entry. We
|
|
|
|
|
|
actually build the entry in adjust_dynamic_symbol,
|
|
|
|
|
|
because this might be a case of linking PIC code without
|
|
|
|
|
|
linking in any dynamic objects, in which case we don't
|
|
|
|
|
|
need to generate a procedure linkage table after all. */
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
|
|
|
|
|
if (h == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* It does not make sense to have a procedure linkage
|
|
|
|
|
|
table entry for a local symbol. */
|
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
|
|
|
|
|
if (h->dynindx == -1)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
|
|
|
|
|
|
return false;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case R_SPARC_PC10:
|
|
|
|
|
|
case R_SPARC_PC22:
|
|
|
|
|
|
if (h != NULL
|
|
|
|
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
|
|
|
|
|
break;
|
|
|
|
|
|
/* Fall through. */
|
|
|
|
|
|
case R_SPARC_DISP8:
|
|
|
|
|
|
case R_SPARC_DISP16:
|
|
|
|
|
|
case R_SPARC_DISP32:
|
|
|
|
|
|
case R_SPARC_WDISP30:
|
|
|
|
|
|
case R_SPARC_WDISP22:
|
1996-04-03 03:57:33 +08:00
|
|
|
|
case R_SPARC_WDISP19:
|
|
|
|
|
|
case R_SPARC_WDISP16:
|
1995-11-28 01:42:27 +08:00
|
|
|
|
if (h == NULL)
|
|
|
|
|
|
break;
|
|
|
|
|
|
/* Fall through. */
|
|
|
|
|
|
case R_SPARC_8:
|
|
|
|
|
|
case R_SPARC_16:
|
|
|
|
|
|
case R_SPARC_32:
|
1994-10-11 04:30:32 +08:00
|
|
|
|
case R_SPARC_HI22:
|
|
|
|
|
|
case R_SPARC_22:
|
|
|
|
|
|
case R_SPARC_13:
|
|
|
|
|
|
case R_SPARC_LO10:
|
|
|
|
|
|
case R_SPARC_UA32:
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
if (info->shared)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
|
|
|
|
|
/* When creating a shared object, we must copy these
|
|
|
|
|
|
relocs into the output file. We create a reloc
|
|
|
|
|
|
section in dynobj and make room for the reloc. */
|
|
|
|
|
|
if (sreloc == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
const char *name;
|
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
|
|
|
|
name = (bfd_elf_string_from_elf_section
|
1994-10-11 04:30:32 +08:00
|
|
|
|
(abfd,
|
|
|
|
|
|
elf_elfheader (abfd)->e_shstrndx,
|
|
|
|
|
|
elf_section_data (sec)->rel_hdr.sh_name));
|
|
|
|
|
|
if (name == NULL)
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
|
|
|
|
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
|
|
|
|
|
name + 5) == 0);
|
|
|
|
|
|
|
|
|
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
|
|
|
|
|
if (sreloc == NULL)
|
|
|
|
|
|
{
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
flagword flags;
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
sreloc = bfd_make_section (dynobj, name);
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
|
|
|
|
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
|
|
|
|
|
if ((sec->flags & SEC_ALLOC) != 0)
|
|
|
|
|
|
flags |= SEC_ALLOC | SEC_LOAD;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if (sreloc == NULL
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
|| ! bfd_set_section_flags (dynobj, sreloc, flags)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|| ! bfd_set_section_alignment (dynobj, sreloc, 2))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
sreloc->_raw_size += sizeof (Elf32_External_Rela);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
|
|
|
|
|
regular object. The current definition is in some section of the
|
|
|
|
|
|
dynamic object, but we're not including those sections. We have to
|
|
|
|
|
|
change the definition to something the rest of the link can
|
|
|
|
|
|
understand. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_adjust_dynamic_symbol (info, h)
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
|
asection *s;
|
|
|
|
|
|
unsigned int power_of_two;
|
|
|
|
|
|
|
|
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
|
|
/* Make sure we know what is going on here. */
|
1995-07-04 01:57:25 +08:00
|
|
|
|
BFD_ASSERT (dynobj != NULL
|
|
|
|
|
|
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
|
1995-11-28 01:42:27 +08:00
|
|
|
|
|| h->weakdef != NULL
|
1995-07-04 01:57:25 +08:00
|
|
|
|
|| ((h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
|
&& (h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_REF_REGULAR) != 0
|
|
|
|
|
|
&& (h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)));
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
|
|
|
|
|
will fill in the contents of the procedure linkage table later
|
1997-03-22 02:09:12 +08:00
|
|
|
|
(although we could actually do it here). The STT_NOTYPE
|
|
|
|
|
|
condition is a hack specifically for the Oracle libraries
|
|
|
|
|
|
delivered for Solaris; for some inexplicable reason, they define
|
|
|
|
|
|
some of their functions as STT_NOTYPE when they really should be
|
|
|
|
|
|
STT_FUNC. */
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (h->type == STT_FUNC
|
1997-03-22 02:09:12 +08:00
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
|
|
|
|
|
|
|| (h->type == STT_NOTYPE
|
|
|
|
|
|
&& (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak)
|
|
|
|
|
|
&& (h->root.u.def.section->flags & SEC_CODE) != 0))
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (! elf_hash_table (info)->dynamic_sections_created)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* This case can occur if we saw a WPLT30 reloc in an input
|
|
|
|
|
|
file, but none of the input files were dynamic objects.
|
|
|
|
|
|
In such a case, we don't actually need to build a
|
|
|
|
|
|
procedure linkage table, and we can just do a WDISP30
|
|
|
|
|
|
reloc instead. */
|
|
|
|
|
|
BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* The first four entries in .plt are reserved. */
|
|
|
|
|
|
if (s->_raw_size == 0)
|
|
|
|
|
|
s->_raw_size = 4 * PLT_ENTRY_SIZE;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* The procedure linkage table has a maximum size. */
|
|
|
|
|
|
if (s->_raw_size >= 0x400000)
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-12-21 03:07:11 +08:00
|
|
|
|
/* If this symbol is not defined in a regular file, and we are
|
|
|
|
|
|
not generating a shared library, then set the symbol to this
|
|
|
|
|
|
location in the .plt. This is required to make function
|
|
|
|
|
|
pointers compare as equal between the normal executable and
|
|
|
|
|
|
the shared library. */
|
|
|
|
|
|
if (! info->shared
|
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
1994-10-28 05:25:31 +08:00
|
|
|
|
{
|
|
|
|
|
|
h->root.u.def.section = s;
|
|
|
|
|
|
h->root.u.def.value = s->_raw_size;
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
h->plt_offset = s->_raw_size;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* Make room for this entry. */
|
|
|
|
|
|
s->_raw_size += PLT_ENTRY_SIZE;
|
|
|
|
|
|
|
|
|
|
|
|
/* We also need to make an entry in the .rela.plt section. */
|
|
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
|
s->_raw_size += sizeof (Elf32_External_Rela);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* If this is a weak symbol, and there is a real definition, the
|
|
|
|
|
|
processor independent code will have arranged for us to see the
|
|
|
|
|
|
real definition first, and we can just use the same value. */
|
|
|
|
|
|
if (h->weakdef != NULL)
|
|
|
|
|
|
{
|
1995-03-14 04:39:36 +08:00
|
|
|
|
BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
|
|
|
|
|
|
|| h->weakdef->root.type == bfd_link_hash_defweak);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
h->root.u.def.section = h->weakdef->root.u.def.section;
|
|
|
|
|
|
h->root.u.def.value = h->weakdef->root.u.def.value;
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
1994-10-11 04:30:32 +08:00
|
|
|
|
is not a function. */
|
|
|
|
|
|
|
|
|
|
|
|
/* If we are creating a shared library, we must presume that the
|
|
|
|
|
|
only references to the symbol are via the global offset table.
|
|
|
|
|
|
For such cases we need not do anything here; the relocations will
|
|
|
|
|
|
be handled correctly by relocate_section. */
|
|
|
|
|
|
if (info->shared)
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
|
|
|
|
|
become part of the .bss section of the executable. There will be
|
|
|
|
|
|
an entry for this symbol in the .dynsym section. The dynamic
|
|
|
|
|
|
object will contain position independent code, so all references
|
|
|
|
|
|
from the dynamic object to this symbol will go through the global
|
|
|
|
|
|
offset table. The dynamic linker will use the .dynsym entry to
|
|
|
|
|
|
determine the address it must put in the global offset table, so
|
|
|
|
|
|
both the dynamic object and the regular object will refer to the
|
|
|
|
|
|
same memory location for the variable. */
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
/* If the symbol is currently defined in the .bss section of the
|
|
|
|
|
|
dynamic object, then it is OK to simply initialize it to zero.
|
|
|
|
|
|
If the symbol is in some other section, we must generate a
|
|
|
|
|
|
R_SPARC_COPY reloc to tell the dynamic linker to copy the initial
|
|
|
|
|
|
value out of the dynamic object and into the runtime process
|
|
|
|
|
|
image. We need to remember the offset into the .rel.bss section
|
1994-07-23 02:53:23 +08:00
|
|
|
|
we are going to use. */
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if ((h->root.u.def.section->flags & SEC_LOAD) != 0)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
|
|
|
|
|
asection *srel;
|
|
|
|
|
|
|
|
|
|
|
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
|
|
|
|
|
BFD_ASSERT (srel != NULL);
|
|
|
|
|
|
srel->_raw_size += sizeof (Elf32_External_Rela);
|
1994-10-11 04:30:32 +08:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* We need to figure out the alignment required for this symbol. I
|
|
|
|
|
|
have no idea how ELF linkers handle this. */
|
1994-07-23 02:53:23 +08:00
|
|
|
|
power_of_two = bfd_log2 (h->size);
|
|
|
|
|
|
if (power_of_two > 3)
|
|
|
|
|
|
power_of_two = 3;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
/* Apply the required alignment. */
|
1994-07-23 02:53:23 +08:00
|
|
|
|
s->_raw_size = BFD_ALIGN (s->_raw_size,
|
|
|
|
|
|
(bfd_size_type) (1 << power_of_two));
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
if (power_of_two > bfd_get_section_alignment (dynobj, s))
|
|
|
|
|
|
{
|
|
|
|
|
|
if (! bfd_set_section_alignment (dynobj, s, power_of_two))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Define the symbol as being at this point in the section. */
|
|
|
|
|
|
h->root.u.def.section = s;
|
|
|
|
|
|
h->root.u.def.value = s->_raw_size;
|
|
|
|
|
|
|
|
|
|
|
|
/* Increment the section size to make room for the symbol. */
|
|
|
|
|
|
s->_raw_size += h->size;
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Set the sizes of the dynamic sections. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_size_dynamic_sections (output_bfd, info)
|
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
|
asection *s;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
boolean reltext;
|
1995-03-14 04:39:36 +08:00
|
|
|
|
boolean relplt;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
BFD_ASSERT (dynobj != NULL);
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
1994-06-24 05:36:03 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* Set the contents of the .interp section to the interpreter. */
|
|
|
|
|
|
if (! info->shared)
|
|
|
|
|
|
{
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
|
s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
|
|
|
|
|
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Make space for the trailing nop in .plt. */
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
1994-06-24 05:36:03 +08:00
|
|
|
|
BFD_ASSERT (s != NULL);
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (s->_raw_size > 0)
|
|
|
|
|
|
s->_raw_size += 4;
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
/* We may have created entries in the .rela.got section.
|
|
|
|
|
|
However, if we are not creating the dynamic sections, we will
|
|
|
|
|
|
not actually use these entries. Reset the size of .rela.got,
|
|
|
|
|
|
which will cause it to get stripped from the output file
|
|
|
|
|
|
below. */
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
|
|
|
if (s != NULL)
|
|
|
|
|
|
s->_raw_size = 0;
|
1994-06-24 05:36:03 +08:00
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
|
|
|
|
|
determined the sizes of the various dynamic sections. Allocate
|
|
|
|
|
|
memory for them. */
|
|
|
|
|
|
reltext = false;
|
1995-03-14 04:39:36 +08:00
|
|
|
|
relplt = false;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
|
|
|
|
|
{
|
|
|
|
|
|
const char *name;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
boolean strip;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
|
|
/* It's OK to base decisions on the section name, because none
|
|
|
|
|
|
of the dynobj section names depend upon the input files. */
|
|
|
|
|
|
name = bfd_get_section_name (dynobj, s);
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
strip = false;
|
|
|
|
|
|
|
|
|
|
|
|
if (strncmp (name, ".rela", 5) == 0)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (s->_raw_size == 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* If we don't need this section, strip it from the
|
|
|
|
|
|
output file. This is to handle .rela.bss and
|
|
|
|
|
|
.rel.plt. We must create it in
|
|
|
|
|
|
create_dynamic_sections, because it must be created
|
|
|
|
|
|
before the linker maps input sections to output
|
|
|
|
|
|
sections. The linker does that before
|
|
|
|
|
|
adjust_dynamic_symbol is called, and it is that
|
|
|
|
|
|
function which decides whether anything needs to go
|
|
|
|
|
|
into these sections. */
|
|
|
|
|
|
strip = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
1997-03-22 02:09:12 +08:00
|
|
|
|
const char *outname;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
asection *target;
|
|
|
|
|
|
|
|
|
|
|
|
/* If this relocation section applies to a read only
|
|
|
|
|
|
section, then we probably need a DT_TEXTREL entry. */
|
1997-03-22 02:09:12 +08:00
|
|
|
|
outname = bfd_get_section_name (output_bfd,
|
|
|
|
|
|
s->output_section);
|
|
|
|
|
|
target = bfd_get_section_by_name (output_bfd, outname + 5);
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (target != NULL
|
|
|
|
|
|
&& (target->flags & SEC_READONLY) != 0)
|
|
|
|
|
|
reltext = true;
|
|
|
|
|
|
|
1995-03-14 04:39:36 +08:00
|
|
|
|
if (strcmp (name, ".rela.plt") == 0)
|
|
|
|
|
|
relplt = true;
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* We use the reloc_count field as a counter if we need
|
|
|
|
|
|
to copy relocs into the output file. */
|
|
|
|
|
|
s->reloc_count = 0;
|
|
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
else if (strcmp (name, ".plt") != 0
|
|
|
|
|
|
&& strcmp (name, ".got") != 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* It's not one of our sections, so don't allocate space. */
|
|
|
|
|
|
continue;
|
|
|
|
|
|
}
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|
|
|
|
|
|
if (strip)
|
|
|
|
|
|
{
|
|
|
|
|
|
asection **spp;
|
|
|
|
|
|
|
|
|
|
|
|
for (spp = &s->output_section->owner->sections;
|
|
|
|
|
|
*spp != s->output_section;
|
|
|
|
|
|
spp = &(*spp)->next)
|
|
|
|
|
|
;
|
|
|
|
|
|
*spp = s->output_section->next;
|
|
|
|
|
|
--s->output_section->owner->section_count;
|
|
|
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* Allocate memory for the section contents. */
|
|
|
|
|
|
s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
|
|
|
|
|
|
if (s->contents == NULL && s->_raw_size != 0)
|
1995-11-30 06:05:37 +08:00
|
|
|
|
return false;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* Add some entries to the .dynamic section. We fill in the
|
|
|
|
|
|
values later, in elf32_sparc_finish_dynamic_sections, but we
|
|
|
|
|
|
must add the entries now so that we get the correct size for
|
|
|
|
|
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
|
|
|
|
|
dynamic linker and used by the debugger. */
|
|
|
|
|
|
if (! info->shared)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1995-03-14 04:39:36 +08:00
|
|
|
|
if (relplt)
|
|
|
|
|
|
{
|
1997-03-22 02:09:12 +08:00
|
|
|
|
if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
|
|
|
|
|
|
|| ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
1995-03-14 04:39:36 +08:00
|
|
|
|
|| ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
|
|
|
|
|
|
|| ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|| ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
|
|
|
|
|
|
|| ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
|
|
|
|
|
|
sizeof (Elf32_External_Rela)))
|
1994-10-11 04:30:32 +08:00
|
|
|
|
return false;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|
|
|
|
|
|
if (reltext)
|
|
|
|
|
|
{
|
|
|
|
|
|
if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-28 05:25:31 +08:00
|
|
|
|
/* If we are generating a shared library, we generate a section
|
1997-03-25 02:42:09 +08:00
|
|
|
|
symbol for each output section for which we might need to copy
|
|
|
|
|
|
relocs. These are local symbols, which means that they must come
|
|
|
|
|
|
first in the dynamic symbol table. That means we must increment
|
|
|
|
|
|
the dynamic symbol index of every other dynamic symbol. */
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (info->shared)
|
|
|
|
|
|
{
|
1997-03-25 02:42:09 +08:00
|
|
|
|
int c;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
|
1997-03-25 02:42:09 +08:00
|
|
|
|
c = 0;
|
|
|
|
|
|
for (s = output_bfd->sections; s != NULL; s = s->next)
|
1994-10-28 05:25:31 +08:00
|
|
|
|
{
|
1997-03-25 02:42:09 +08:00
|
|
|
|
if ((s->flags & SEC_LINKER_CREATED) != 0
|
|
|
|
|
|
|| (s->flags & SEC_ALLOC) == 0
|
|
|
|
|
|
|| (s->flags & SEC_LOAD) == 0)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
|
|
elf_section_data (s)->dynindx = c + 1;
|
|
|
|
|
|
|
1994-10-28 05:25:31 +08:00
|
|
|
|
/* These symbols will have no names, so we don't need to
|
|
|
|
|
|
fiddle with dynstr_index. */
|
1997-03-25 02:42:09 +08:00
|
|
|
|
|
|
|
|
|
|
++c;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
}
|
1997-03-25 02:42:09 +08:00
|
|
|
|
|
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info),
|
|
|
|
|
|
elf32_sparc_adjust_dynindx,
|
|
|
|
|
|
(PTR) &c);
|
|
|
|
|
|
elf_hash_table (info)->dynsymcount += c;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Increment the index of a dynamic symbol by a given amount. Called
|
|
|
|
|
|
via elf_link_hash_traverse. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_adjust_dynindx (h, cparg)
|
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
PTR cparg;
|
|
|
|
|
|
{
|
|
|
|
|
|
int *cp = (int *) cparg;
|
|
|
|
|
|
|
|
|
|
|
|
if (h->dynindx != -1)
|
|
|
|
|
|
h->dynindx += *cp;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Relocate a SPARC ELF section. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section,
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
contents, relocs, local_syms, local_sections)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
bfd *input_bfd;
|
|
|
|
|
|
asection *input_section;
|
|
|
|
|
|
bfd_byte *contents;
|
|
|
|
|
|
Elf_Internal_Rela *relocs;
|
|
|
|
|
|
Elf_Internal_Sym *local_syms;
|
|
|
|
|
|
asection **local_sections;
|
|
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
bfd *dynobj;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
|
|
|
|
struct elf_link_hash_entry **sym_hashes;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
bfd_vma *local_got_offsets;
|
1996-04-03 03:57:33 +08:00
|
|
|
|
bfd_vma got_base;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
asection *sgot;
|
|
|
|
|
|
asection *splt;
|
|
|
|
|
|
asection *sreloc;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
Elf_Internal_Rela *rel;
|
|
|
|
|
|
Elf_Internal_Rela *relend;
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
|
|
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
1994-10-11 04:30:32 +08:00
|
|
|
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
|
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
if (elf_hash_table (info)->hgot == NULL)
|
|
|
|
|
|
got_base = 0;
|
|
|
|
|
|
else
|
|
|
|
|
|
got_base = elf_hash_table (info)->hgot->root.u.def.value;
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
sgot = NULL;
|
|
|
|
|
|
splt = NULL;
|
|
|
|
|
|
sreloc = NULL;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
rel = relocs;
|
|
|
|
|
|
relend = relocs + input_section->reloc_count;
|
|
|
|
|
|
for (; rel < relend; rel++)
|
|
|
|
|
|
{
|
|
|
|
|
|
int r_type;
|
1995-01-12 10:41:04 +08:00
|
|
|
|
reloc_howto_type *howto;
|
1995-11-28 01:42:27 +08:00
|
|
|
|
unsigned long r_symndx;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
Elf_Internal_Sym *sym;
|
|
|
|
|
|
asection *sec;
|
|
|
|
|
|
bfd_vma relocation;
|
|
|
|
|
|
bfd_reloc_status_type r;
|
|
|
|
|
|
|
|
|
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
|
|
|
if (r_type < 0 || r_type >= (int) R_SPARC_max)
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
1996-04-03 03:57:33 +08:00
|
|
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
|
|
|
|
|
|
|
|
|
if (info->relocateable)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* This is a relocateable link. We don't have to change
|
|
|
|
|
|
anything, unless the reloc is against a section symbol,
|
|
|
|
|
|
in which case we have to adjust according to where the
|
|
|
|
|
|
section symbol winds up in the output section. */
|
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
|
{
|
|
|
|
|
|
sym = local_syms + r_symndx;
|
|
|
|
|
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
|
|
|
|
|
{
|
|
|
|
|
|
sec = local_sections[r_symndx];
|
|
|
|
|
|
rel->r_addend += sec->output_offset + sym->st_value;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* This is a final link. */
|
|
|
|
|
|
h = NULL;
|
|
|
|
|
|
sym = NULL;
|
|
|
|
|
|
sec = NULL;
|
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
|
{
|
|
|
|
|
|
sym = local_syms + r_symndx;
|
|
|
|
|
|
sec = local_sections[r_symndx];
|
|
|
|
|
|
relocation = (sec->output_section->vma
|
|
|
|
|
|
+ sec->output_offset
|
|
|
|
|
|
+ sym->st_value);
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
1996-04-03 03:57:33 +08:00
|
|
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|
|
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
|
|
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
1995-03-14 04:39:36 +08:00
|
|
|
|
if (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
|
|
|
|
|
sec = h->root.u.def.section;
|
1994-12-21 03:07:11 +08:00
|
|
|
|
if ((r_type == R_SPARC_WPLT30
|
|
|
|
|
|
&& h->plt_offset != (bfd_vma) -1)
|
|
|
|
|
|
|| ((r_type == R_SPARC_GOT10
|
|
|
|
|
|
|| r_type == R_SPARC_GOT13
|
|
|
|
|
|
|| r_type == R_SPARC_GOT22)
|
1995-11-28 01:42:27 +08:00
|
|
|
|
&& elf_hash_table (info)->dynamic_sections_created
|
|
|
|
|
|
&& (! info->shared
|
|
|
|
|
|
|| ! info->symbolic
|
|
|
|
|
|
|| (h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
1994-12-21 03:07:11 +08:00
|
|
|
|
|| (info->shared
|
1996-01-30 04:01:29 +08:00
|
|
|
|
&& (! info->symbolic
|
|
|
|
|
|
|| (h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)
|
1994-12-21 03:07:11 +08:00
|
|
|
|
&& (r_type == R_SPARC_8
|
|
|
|
|
|
|| r_type == R_SPARC_16
|
|
|
|
|
|
|| r_type == R_SPARC_32
|
|
|
|
|
|
|| r_type == R_SPARC_DISP8
|
|
|
|
|
|
|| r_type == R_SPARC_DISP16
|
|
|
|
|
|
|| r_type == R_SPARC_DISP32
|
|
|
|
|
|
|| r_type == R_SPARC_WDISP30
|
|
|
|
|
|
|| r_type == R_SPARC_WDISP22
|
1996-04-03 03:57:33 +08:00
|
|
|
|
|| r_type == R_SPARC_WDISP19
|
|
|
|
|
|
|| r_type == R_SPARC_WDISP16
|
1994-12-21 03:07:11 +08:00
|
|
|
|
|| r_type == R_SPARC_HI22
|
|
|
|
|
|
|| r_type == R_SPARC_22
|
|
|
|
|
|
|| r_type == R_SPARC_13
|
|
|
|
|
|
|| r_type == R_SPARC_LO10
|
|
|
|
|
|
|| r_type == R_SPARC_UA32
|
|
|
|
|
|
|| ((r_type == R_SPARC_PC10
|
|
|
|
|
|
|| r_type == R_SPARC_PC22)
|
|
|
|
|
|
&& strcmp (h->root.root.string,
|
|
|
|
|
|
"_GLOBAL_OFFSET_TABLE_") != 0))))
|
|
|
|
|
|
{
|
|
|
|
|
|
/* In these cases, we don't need the relocation
|
|
|
|
|
|
value. We check specially because in some
|
|
|
|
|
|
obscure cases sec->output_section will be NULL. */
|
|
|
|
|
|
relocation = 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
relocation = (h->root.u.def.value
|
|
|
|
|
|
+ sec->output_section->vma
|
|
|
|
|
|
+ sec->output_offset);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
1995-03-14 04:39:36 +08:00
|
|
|
|
else if (h->root.type == bfd_link_hash_undefweak)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
relocation = 0;
|
1995-11-28 01:42:27 +08:00
|
|
|
|
else if (info->shared && !info->symbolic)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
relocation = 0;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
if (! ((*info->callbacks->undefined_symbol)
|
|
|
|
|
|
(info, h->root.root.string, input_bfd,
|
|
|
|
|
|
input_section, rel->r_offset)))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
relocation = 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
switch (r_type)
|
|
|
|
|
|
{
|
|
|
|
|
|
case R_SPARC_GOT10:
|
|
|
|
|
|
case R_SPARC_GOT13:
|
|
|
|
|
|
case R_SPARC_GOT22:
|
|
|
|
|
|
/* Relocation is to the entry for this symbol in the global
|
|
|
|
|
|
offset table. */
|
|
|
|
|
|
if (sgot == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
|
|
|
|
|
BFD_ASSERT (sgot != NULL);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (h != NULL)
|
|
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
bfd_vma off;
|
|
|
|
|
|
|
|
|
|
|
|
off = h->got_offset;
|
|
|
|
|
|
BFD_ASSERT (off != (bfd_vma) -1);
|
|
|
|
|
|
|
1995-11-28 01:42:27 +08:00
|
|
|
|
if (! elf_hash_table (info)->dynamic_sections_created
|
|
|
|
|
|
|| (info->shared
|
|
|
|
|
|
&& info->symbolic
|
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
{
|
1995-11-28 01:42:27 +08:00
|
|
|
|
/* This is actually a static link, or it is a
|
|
|
|
|
|
-Bsymbolic link and the symbol is defined
|
|
|
|
|
|
locally. We must initialize this entry in the
|
|
|
|
|
|
global offset table. Since the offset must
|
|
|
|
|
|
always be a multiple of 4, we use the least
|
|
|
|
|
|
significant bit to record whether we have
|
|
|
|
|
|
initialized it already.
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
|
|
|
|
|
|
When doing a dynamic link, we create a .rela.got
|
|
|
|
|
|
relocation entry to initialize the value. This
|
|
|
|
|
|
is done in the finish_dynamic_symbol routine. */
|
|
|
|
|
|
if ((off & 1) != 0)
|
|
|
|
|
|
off &= ~1;
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_put_32 (output_bfd, relocation,
|
|
|
|
|
|
sgot->contents + off);
|
|
|
|
|
|
h->got_offset |= 1;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
relocation = sgot->output_offset + off - got_base;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_vma off;
|
|
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (local_got_offsets != NULL
|
|
|
|
|
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
|
|
|
|
|
|
|
|
|
|
|
off = local_got_offsets[r_symndx];
|
|
|
|
|
|
|
|
|
|
|
|
/* The offset must always be a multiple of 4. We use
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
the least significant bit to record whether we have
|
|
|
|
|
|
already processed this entry. */
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if ((off & 1) != 0)
|
|
|
|
|
|
off &= ~1;
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (info->shared)
|
|
|
|
|
|
{
|
|
|
|
|
|
asection *srelgot;
|
|
|
|
|
|
Elf_Internal_Rela outrel;
|
|
|
|
|
|
|
|
|
|
|
|
/* We need to generate a R_SPARC_RELATIVE reloc
|
|
|
|
|
|
for the dynamic linker. */
|
|
|
|
|
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
|
|
|
BFD_ASSERT (srelgot != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
outrel.r_offset = (sgot->output_section->vma
|
|
|
|
|
|
+ sgot->output_offset
|
|
|
|
|
|
+ off);
|
|
|
|
|
|
outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
|
|
|
|
|
|
outrel.r_addend = 0;
|
|
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
|
|
|
|
|
(((Elf32_External_Rela *)
|
|
|
|
|
|
srelgot->contents)
|
|
|
|
|
|
+ srelgot->reloc_count));
|
|
|
|
|
|
++srelgot->reloc_count;
|
|
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
|
|
|
|
|
local_got_offsets[r_symndx] |= 1;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
relocation = sgot->output_offset + off - got_base;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case R_SPARC_WPLT30:
|
|
|
|
|
|
/* Relocation is to the entry for this symbol in the
|
|
|
|
|
|
procedure linkage table. */
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
BFD_ASSERT (h != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
if (h->plt_offset == (bfd_vma) -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* We didn't make a PLT entry for this symbol. This
|
1995-11-28 01:42:27 +08:00
|
|
|
|
happens when statically linking PIC code, or when
|
|
|
|
|
|
using -Bsymbolic. */
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if (splt == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
|
|
|
BFD_ASSERT (splt != NULL);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
relocation = (splt->output_section->vma
|
|
|
|
|
|
+ splt->output_offset
|
|
|
|
|
|
+ h->plt_offset);
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
|
|
case R_SPARC_PC10:
|
|
|
|
|
|
case R_SPARC_PC22:
|
|
|
|
|
|
if (h != NULL
|
|
|
|
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
|
|
|
|
|
break;
|
|
|
|
|
|
/* Fall through. */
|
|
|
|
|
|
case R_SPARC_DISP8:
|
|
|
|
|
|
case R_SPARC_DISP16:
|
|
|
|
|
|
case R_SPARC_DISP32:
|
|
|
|
|
|
case R_SPARC_WDISP30:
|
|
|
|
|
|
case R_SPARC_WDISP22:
|
1996-04-03 03:57:33 +08:00
|
|
|
|
case R_SPARC_WDISP19:
|
|
|
|
|
|
case R_SPARC_WDISP16:
|
1995-11-28 01:42:27 +08:00
|
|
|
|
if (h == NULL)
|
|
|
|
|
|
break;
|
|
|
|
|
|
/* Fall through. */
|
|
|
|
|
|
case R_SPARC_8:
|
|
|
|
|
|
case R_SPARC_16:
|
|
|
|
|
|
case R_SPARC_32:
|
1994-10-11 04:30:32 +08:00
|
|
|
|
case R_SPARC_HI22:
|
|
|
|
|
|
case R_SPARC_22:
|
|
|
|
|
|
case R_SPARC_13:
|
|
|
|
|
|
case R_SPARC_LO10:
|
|
|
|
|
|
case R_SPARC_UA32:
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
if (info->shared)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
|
|
|
|
|
Elf_Internal_Rela outrel;
|
|
|
|
|
|
|
|
|
|
|
|
/* When generating a shared object, these relocations
|
|
|
|
|
|
are copied into the output file to be resolved at run
|
|
|
|
|
|
time. */
|
|
|
|
|
|
|
|
|
|
|
|
if (sreloc == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
const char *name;
|
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
|
|
|
|
name = (bfd_elf_string_from_elf_section
|
1994-10-11 04:30:32 +08:00
|
|
|
|
(input_bfd,
|
|
|
|
|
|
elf_elfheader (input_bfd)->e_shstrndx,
|
|
|
|
|
|
elf_section_data (input_section)->rel_hdr.sh_name));
|
|
|
|
|
|
if (name == NULL)
|
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
|
|
|
|
|
&& strcmp (bfd_get_section_name (input_bfd,
|
|
|
|
|
|
input_section),
|
|
|
|
|
|
name + 5) == 0);
|
|
|
|
|
|
|
|
|
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
|
|
|
|
|
BFD_ASSERT (sreloc != NULL);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
outrel.r_offset = (rel->r_offset
|
|
|
|
|
|
+ input_section->output_section->vma
|
|
|
|
|
|
+ input_section->output_offset);
|
1997-03-22 02:09:12 +08:00
|
|
|
|
/* h->dynindx may be -1 if the symbol was marked to
|
|
|
|
|
|
become local. */
|
1996-01-30 04:01:29 +08:00
|
|
|
|
if (h != NULL
|
1997-03-22 02:09:12 +08:00
|
|
|
|
&& ((! info->symbolic && h->dynindx != -1)
|
1996-01-30 04:01:29 +08:00
|
|
|
|
|| (h->elf_link_hash_flags
|
|
|
|
|
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
1994-10-11 04:30:32 +08:00
|
|
|
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
1994-10-28 05:25:31 +08:00
|
|
|
|
outrel.r_addend = rel->r_addend;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (r_type == R_SPARC_32)
|
1994-10-11 04:30:32 +08:00
|
|
|
|
{
|
1994-10-28 05:25:31 +08:00
|
|
|
|
outrel.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
|
|
|
|
|
|
outrel.r_addend = relocation + rel->r_addend;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
1994-10-28 05:25:31 +08:00
|
|
|
|
long indx;
|
|
|
|
|
|
|
1996-01-30 04:01:29 +08:00
|
|
|
|
if (h == NULL)
|
|
|
|
|
|
sec = local_sections[r_symndx];
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
BFD_ASSERT (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|
|| (h->root.type
|
|
|
|
|
|
== bfd_link_hash_defweak));
|
|
|
|
|
|
sec = h->root.u.def.section;
|
|
|
|
|
|
}
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (sec != NULL && bfd_is_abs_section (sec))
|
|
|
|
|
|
indx = 0;
|
|
|
|
|
|
else if (sec == NULL || sec->owner == NULL)
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
asection *osec;
|
|
|
|
|
|
|
|
|
|
|
|
osec = sec->output_section;
|
|
|
|
|
|
indx = elf_section_data (osec)->dynindx;
|
|
|
|
|
|
if (indx == 0)
|
|
|
|
|
|
abort ();
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
|
|
|
|
|
outrel.r_addend = relocation + rel->r_addend;
|
1994-10-11 04:30:32 +08:00
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
|
|
|
|
|
(((Elf32_External_Rela *)
|
|
|
|
|
|
sreloc->contents)
|
|
|
|
|
|
+ sreloc->reloc_count));
|
|
|
|
|
|
++sreloc->reloc_count;
|
|
|
|
|
|
|
|
|
|
|
|
/* This reloc will be computed at runtime, so there's no
|
|
|
|
|
|
need to do anything now. */
|
|
|
|
|
|
continue;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
break;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
1996-04-03 03:57:33 +08:00
|
|
|
|
if (r_type != R_SPARC_WDISP16)
|
|
|
|
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
|
|
|
|
|
contents, rel->r_offset,
|
|
|
|
|
|
relocation, rel->r_addend);
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_vma x;
|
|
|
|
|
|
|
|
|
|
|
|
relocation += rel->r_addend;
|
|
|
|
|
|
relocation -= (input_section->output_section->vma
|
|
|
|
|
|
+ input_section->output_offset);
|
|
|
|
|
|
relocation -= rel->r_offset;
|
|
|
|
|
|
|
|
|
|
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
|
|
|
|
|
x |= ((((relocation >> 2) & 0xc000) << 6)
|
|
|
|
|
|
| ((relocation >> 2) & 0x3fff));
|
|
|
|
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
|
|
|
|
|
|
|
|
|
|
|
if ((bfd_signed_vma) relocation < - 0x40000
|
|
|
|
|
|
|| (bfd_signed_vma) relocation > 0x3ffff)
|
|
|
|
|
|
r = bfd_reloc_overflow;
|
|
|
|
|
|
else
|
|
|
|
|
|
r = bfd_reloc_ok;
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
if (r != bfd_reloc_ok)
|
|
|
|
|
|
{
|
|
|
|
|
|
switch (r)
|
|
|
|
|
|
{
|
|
|
|
|
|
default:
|
|
|
|
|
|
case bfd_reloc_outofrange:
|
|
|
|
|
|
abort ();
|
|
|
|
|
|
case bfd_reloc_overflow:
|
|
|
|
|
|
{
|
|
|
|
|
|
const char *name;
|
|
|
|
|
|
|
|
|
|
|
|
if (h != NULL)
|
|
|
|
|
|
name = h->root.root.string;
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
|
|
|
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
|
|
|
|
|
symtab_hdr->sh_link,
|
|
|
|
|
|
sym->st_name);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
if (name == NULL)
|
|
|
|
|
|
return false;
|
|
|
|
|
|
if (*name == '\0')
|
|
|
|
|
|
name = bfd_section_name (input_bfd, sec);
|
|
|
|
|
|
}
|
|
|
|
|
|
if (! ((*info->callbacks->reloc_overflow)
|
|
|
|
|
|
(info, name, howto->name, (bfd_vma) 0,
|
|
|
|
|
|
input_bfd, input_section, rel->r_offset)))
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
|
|
|
|
|
dynamic sections here. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_finish_dynamic_symbol (output_bfd, info, h, sym)
|
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
Elf_Internal_Sym *sym;
|
|
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
bfd *dynobj;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
if (h->plt_offset != (bfd_vma) -1)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
|
|
|
|
|
asection *splt;
|
|
|
|
|
|
asection *srela;
|
|
|
|
|
|
Elf_Internal_Rela rela;
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* This symbol has an entry in the procedure linkage table. Set
|
|
|
|
|
|
it up. */
|
|
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
|
|
|
|
|
|
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
|
|
|
srela = bfd_get_section_by_name (dynobj, ".rela.plt");
|
|
|
|
|
|
BFD_ASSERT (splt != NULL && srela != NULL);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
/* Fill in the entry in the procedure linkage table. */
|
|
|
|
|
|
bfd_put_32 (output_bfd,
|
1994-10-11 04:30:32 +08:00
|
|
|
|
PLT_ENTRY_WORD0 + h->plt_offset,
|
|
|
|
|
|
splt->contents + h->plt_offset);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
bfd_put_32 (output_bfd,
|
|
|
|
|
|
(PLT_ENTRY_WORD1
|
1994-10-11 04:30:32 +08:00
|
|
|
|
+ (((- (h->plt_offset + 4)) >> 2) & 0x3fffff)),
|
|
|
|
|
|
splt->contents + h->plt_offset + 4);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
|
1994-10-11 04:30:32 +08:00
|
|
|
|
splt->contents + h->plt_offset + 8);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
|
|
|
|
|
rela.r_offset = (splt->output_section->vma
|
|
|
|
|
|
+ splt->output_offset
|
1994-10-11 04:30:32 +08:00
|
|
|
|
+ h->plt_offset);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
|
|
|
|
|
|
rela.r_addend = 0;
|
|
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
|
|
|
|
|
((Elf32_External_Rela *) srela->contents
|
1994-10-11 04:30:32 +08:00
|
|
|
|
+ h->plt_offset / PLT_ENTRY_SIZE - 4));
|
|
|
|
|
|
|
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* Mark the symbol as undefined, rather than as defined in
|
|
|
|
|
|
the .plt section. Leave the value alone. */
|
|
|
|
|
|
sym->st_shndx = SHN_UNDEF;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (h->got_offset != (bfd_vma) -1)
|
|
|
|
|
|
{
|
|
|
|
|
|
asection *sgot;
|
|
|
|
|
|
asection *srela;
|
|
|
|
|
|
Elf_Internal_Rela rela;
|
|
|
|
|
|
|
|
|
|
|
|
/* This symbol has an entry in the global offset table. Set it
|
|
|
|
|
|
up. */
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
|
|
|
|
|
|
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
|
|
|
|
|
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
|
|
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
rela.r_offset = (sgot->output_section->vma
|
|
|
|
|
|
+ sgot->output_offset
|
1995-11-28 01:42:27 +08:00
|
|
|
|
+ (h->got_offset &~ 1));
|
|
|
|
|
|
|
|
|
|
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
|
|
|
|
|
locally, we just want to emit a RELATIVE reloc. The entry in
|
|
|
|
|
|
the global offset table will already have been initialized in
|
|
|
|
|
|
the relocate_section function. */
|
|
|
|
|
|
if (info->shared
|
|
|
|
|
|
&& info->symbolic
|
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
|
|
|
|
|
|
rela.r_info = ELF32_R_INFO (0, R_SPARC_RELATIVE);
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got_offset);
|
|
|
|
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_GLOB_DAT);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
rela.r_addend = 0;
|
|
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
|
|
|
|
|
((Elf32_External_Rela *) srela->contents
|
|
|
|
|
|
+ srela->reloc_count));
|
|
|
|
|
|
++srela->reloc_count;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
1994-10-11 04:30:32 +08:00
|
|
|
|
|
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
asection *s;
|
|
|
|
|
|
Elf_Internal_Rela rela;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* This symbols needs a copy reloc. Set it up. */
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
|
|
|
|
|
".rela.bss");
|
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
rela.r_offset = (h->root.u.def.value
|
|
|
|
|
|
+ h->root.u.def.section->output_section->vma
|
|
|
|
|
|
+ h->root.u.def.section->output_offset);
|
|
|
|
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_SPARC_COPY);
|
|
|
|
|
|
rela.r_addend = 0;
|
|
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
|
|
|
|
|
((Elf32_External_Rela *) s->contents
|
|
|
|
|
|
+ s->reloc_count));
|
|
|
|
|
|
++s->reloc_count;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
/* Mark some specially defined symbols as absolute. */
|
|
|
|
|
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
|
|
|
|
|
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
|
|
|
|
|
|
|| strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
|
|
|
|
|
|
sym->st_shndx = SHN_ABS;
|
|
|
|
|
|
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Finish up the dynamic sections. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_finish_dynamic_sections (output_bfd, info)
|
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
|
{
|
1994-10-11 04:30:32 +08:00
|
|
|
|
bfd *dynobj;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
asection *sdyn;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
asection *sgot;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
1994-10-11 04:30:32 +08:00
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
|
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
asection *splt;
|
|
|
|
|
|
Elf32_External_Dyn *dyncon, *dynconend;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
|
|
|
|
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
|
|
|
|
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
|
|
|
|
|
|
for (; dyncon < dynconend; dyncon++)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
Elf_Internal_Dyn dyn;
|
|
|
|
|
|
const char *name;
|
|
|
|
|
|
boolean size;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
switch (dyn.d_tag)
|
|
|
|
|
|
{
|
|
|
|
|
|
case DT_PLTGOT: name = ".plt"; size = false; break;
|
|
|
|
|
|
case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
|
|
|
|
|
|
case DT_JMPREL: name = ".rela.plt"; size = false; break;
|
|
|
|
|
|
default: name = NULL; size = false; break;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (name != NULL)
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
{
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
asection *s;
|
|
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (output_bfd, name);
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (s == NULL)
|
|
|
|
|
|
dyn.d_un.d_val = 0;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
else
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
{
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (! size)
|
|
|
|
|
|
dyn.d_un.d_ptr = s->vma;
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
else
|
1994-10-28 05:25:31 +08:00
|
|
|
|
{
|
|
|
|
|
|
if (s->_cooked_size != 0)
|
|
|
|
|
|
dyn.d_un.d_val = s->_cooked_size;
|
|
|
|
|
|
else
|
|
|
|
|
|
dyn.d_un.d_val = s->_raw_size;
|
|
|
|
|
|
}
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
}
|
|
|
|
|
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
/* Clear the first four entries in the procedure linkage table,
|
|
|
|
|
|
and put a nop in the last four bytes. */
|
|
|
|
|
|
if (splt->_raw_size > 0)
|
|
|
|
|
|
{
|
|
|
|
|
|
memset (splt->contents, 0, 4 * PLT_ENTRY_SIZE);
|
|
|
|
|
|
bfd_put_32 (output_bfd, SPARC_NOP,
|
|
|
|
|
|
splt->contents + splt->_raw_size - 4);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize =
|
|
|
|
|
|
PLT_ENTRY_SIZE;
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Set the first entry in the global offset table to the address of
|
|
|
|
|
|
the dynamic section. */
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
|
|
|
|
|
BFD_ASSERT (sgot != NULL);
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
if (sgot->_raw_size > 0)
|
Fix the ELF linker to not require an interpreter if no dynamic
objects were seen, even when linking PIC code.
* libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define.
(struct elf_link_hash_table): Add field dynamic_sections_created.
* elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it
doesn't already exist.
(elf_link_add_object_symbols): Create dynamic sections based on
dynamic_sections_created field, not dynobj field. Don't bother to
set dynobj.
(elf_link_create_dynamic_sections): If dynamic sections were
already created, don't do anything. If dynobj is already set, use
it; otherwise, set it to the bfd argument. Don't initialize
dynsymcount. Only create dynstr if it does not exist. Set
dynamic_sections_created to true.
(NAME(bfd_elf,size_dynamic_sections)): Skip most of this function
if no dynamic objects were seen.
(elf_adjust_dynamic_symbol): If a symbol has the
ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it.
(elf_bfd_final_link): Change most decisions based on dynobj to
check dynamic_sections_created instead.
(elf_link_output_extsym): Only handle dynamic symbols if a dynamic
object was seen.
* elf.c (_bfd_elf_link_hash_table_init): Initialize new field
dynamic_sections_created. Set dynsymcount to 1, not 0.
* elf32-i386.c (elf_i386_create_dynamic_sections): Call
elf_i386_create_got_section rather than creating the .got and
.got.plt sections.
(elf_i386_create_got_section): New static function.
(elf_i386_check_relocs): Just call elf_i386_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rel.got section, and only make space for a reloc,
for a global symbol or when generating a shared object. For a
R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf_i386_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a
procedure linkage table entry for such symbols. But, if no
dynamic objects were seen, never create a PLT entry.
(elf_i386_size_dynamic_sections): If no dynamic objects were seen,
skip most of this function, and force the size of the .rel.got
section to zero.
(elf_i386_relocate_section): For a R_386_GOT32 reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a R_386_GOT32 against a local symbol, only
create a R_386_RELATIVE reloc when generating a shared object.
Treat a R_386_PLT32 reloc against a symbol for which we did not
create a PLT entry as a R_386_PC32 reloc.
(elf_i386_finish_dynamic_sections): Only fiddle with the dynamic
entries and the PLT if we saw a dynamic object.
* elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by
setting rightshift to 10. Fix R_SPARC_WPLT20 by setting
rightshift to 2, size to 2, bitsize to 30, and dst_mask to
0x3fffffff.
(elf32_sparc_create_dynamic_sections): Don't set the size of the
.plt section. Call elf32_sparc_create_got_section rather than
creating the .got section.
(elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if
a GOT table is needed, not bfd_elf32_link_create_dynamic_sections.
Only create the .rela.got section, and only make space for a
reloc, for a global symbol or when generating a shared object.
Set the alignment of the .rela.got section to 2. For a
R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag.
(elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to
permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a
procedure linkage table for such symbols. But, if no dynamic
objects were seen, never create a PLT entry. Initialize the size
of the .plt section.
(elf32_sparc_size_dynamic_sections): If no dynamic objects were
seen, skip most of this function, and force the size of the
.rela.got section to zero. Strip empty reloc sections, and strip
an empty .plt section.
(elf32_sparc_relocate_section): For a GOT reloc against a global
symbol when no dynamic object was seen, initialize the contents of
the .got section. For a GOT reloc against a local symbol, only
create a R_SPARC_RELATIVE reloc when generating a shared object.
Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not
create a PLT entry as a R_SPARC_WDISP30 reloc.
(elf32_sparc_finish_dynamic_sections): Only fiddle with the
dynamic entries and the PLT if we saw a dynamic object.
1994-10-22 06:00:18 +08:00
|
|
|
|
{
|
|
|
|
|
|
if (sdyn == NULL)
|
|
|
|
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
|
|
|
|
|
else
|
|
|
|
|
|
bfd_put_32 (output_bfd,
|
|
|
|
|
|
sdyn->output_section->vma + sdyn->output_offset,
|
|
|
|
|
|
sgot->contents);
|
|
|
|
|
|
}
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
|
|
|
|
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
|
|
|
|
|
1994-10-28 05:25:31 +08:00
|
|
|
|
if (info->shared)
|
|
|
|
|
|
{
|
|
|
|
|
|
asection *sdynsym;
|
|
|
|
|
|
asection *s;
|
|
|
|
|
|
Elf_Internal_Sym sym;
|
1997-03-25 02:42:09 +08:00
|
|
|
|
int c;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
|
|
|
|
|
|
/* Set up the section symbols for the output sections. */
|
|
|
|
|
|
|
|
|
|
|
|
sdynsym = bfd_get_section_by_name (dynobj, ".dynsym");
|
|
|
|
|
|
BFD_ASSERT (sdynsym != NULL);
|
|
|
|
|
|
|
|
|
|
|
|
sym.st_size = 0;
|
|
|
|
|
|
sym.st_name = 0;
|
|
|
|
|
|
sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
|
|
|
|
|
|
sym.st_other = 0;
|
|
|
|
|
|
|
1997-03-25 02:42:09 +08:00
|
|
|
|
c = 0;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
for (s = output_bfd->sections; s != NULL; s = s->next)
|
|
|
|
|
|
{
|
|
|
|
|
|
int indx;
|
|
|
|
|
|
|
1997-03-25 02:42:09 +08:00
|
|
|
|
if (elf_section_data (s)->dynindx == 0)
|
|
|
|
|
|
continue;
|
|
|
|
|
|
|
1994-10-28 05:25:31 +08:00
|
|
|
|
sym.st_value = s->vma;
|
|
|
|
|
|
|
|
|
|
|
|
indx = elf_section_data (s)->this_idx;
|
|
|
|
|
|
BFD_ASSERT (indx > 0);
|
|
|
|
|
|
sym.st_shndx = indx;
|
|
|
|
|
|
|
|
|
|
|
|
bfd_elf32_swap_symbol_out (output_bfd, &sym,
|
1995-11-28 01:42:27 +08:00
|
|
|
|
(PTR) (((Elf32_External_Sym *)
|
|
|
|
|
|
sdynsym->contents)
|
|
|
|
|
|
+ elf_section_data (s)->dynindx));
|
1997-03-25 02:42:09 +08:00
|
|
|
|
|
|
|
|
|
|
++c;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Set the sh_info field of the output .dynsym section to the
|
|
|
|
|
|
index of the first global symbol. */
|
1997-03-25 02:42:09 +08:00
|
|
|
|
elf_section_data (sdynsym->output_section)->this_hdr.sh_info = c + 1;
|
1994-10-28 05:25:31 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
return true;
|
|
|
|
|
|
}
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
|
1996-01-30 04:01:29 +08:00
|
|
|
|
/* Functions for dealing with the e_flags field.
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
|
1996-01-30 04:01:29 +08:00
|
|
|
|
We don't define set_private_flags or copy_private_bfd_data because
|
|
|
|
|
|
the only currently defined values are based on the bfd mach number,
|
|
|
|
|
|
so we use the latter instead and defer setting e_flags until the
|
|
|
|
|
|
file is written out. */
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
|
|
|
|
|
|
/* Merge backend specific data from an object file to the output
|
|
|
|
|
|
object file when linking. */
|
|
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_merge_private_bfd_data (ibfd, obfd)
|
|
|
|
|
|
bfd *ibfd;
|
|
|
|
|
|
bfd *obfd;
|
|
|
|
|
|
{
|
|
|
|
|
|
boolean error;
|
|
|
|
|
|
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
|
|
|
|
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
|
|
error = false;
|
|
|
|
|
|
|
1996-01-30 04:01:29 +08:00
|
|
|
|
#if 0
|
|
|
|
|
|
/* ??? The native linker doesn't do this so we can't (otherwise gcc would
|
|
|
|
|
|
have to know which linker is being used). Instead, the native linker
|
|
|
|
|
|
bumps up the architecture level when it has to. However, I still think
|
|
|
|
|
|
warnings like these are good, so it would be nice to have them turned on
|
|
|
|
|
|
by some option. */
|
|
|
|
|
|
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
/* If the output machine is normal sparc, we can't allow v9 input files. */
|
|
|
|
|
|
if (bfd_get_mach (obfd) == bfd_mach_sparc
|
|
|
|
|
|
&& (bfd_get_mach (ibfd) == bfd_mach_sparc_v8plus
|
|
|
|
|
|
|| bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa))
|
|
|
|
|
|
{
|
|
|
|
|
|
error = true;
|
|
|
|
|
|
(*_bfd_error_handler)
|
|
|
|
|
|
("%s: compiled for a v8plus system and target is v8",
|
|
|
|
|
|
bfd_get_filename (ibfd));
|
|
|
|
|
|
}
|
|
|
|
|
|
/* If the output machine is v9, we can't allow v9+vis input files. */
|
|
|
|
|
|
if (bfd_get_mach (obfd) == bfd_mach_sparc_v8plus
|
|
|
|
|
|
&& bfd_get_mach (ibfd) == bfd_mach_sparc_v8plusa)
|
|
|
|
|
|
{
|
|
|
|
|
|
error = true;
|
|
|
|
|
|
(*_bfd_error_handler)
|
|
|
|
|
|
("%s: compiled for a v8plusa system and target is v8plus",
|
|
|
|
|
|
bfd_get_filename (ibfd));
|
|
|
|
|
|
}
|
1996-01-30 04:01:29 +08:00
|
|
|
|
#else
|
|
|
|
|
|
if (bfd_get_mach (ibfd) >= bfd_mach_sparc_v9)
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
{
|
1996-01-30 04:01:29 +08:00
|
|
|
|
error = true;
|
|
|
|
|
|
(*_bfd_error_handler)
|
|
|
|
|
|
("%s: compiled for a 64 bit system and target is 32 bit",
|
|
|
|
|
|
bfd_get_filename (ibfd));
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
}
|
1996-01-30 04:01:29 +08:00
|
|
|
|
else if (bfd_get_mach (obfd) < bfd_get_mach (ibfd))
|
|
|
|
|
|
bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd));
|
|
|
|
|
|
#endif
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
|
|
|
|
|
|
if (error)
|
|
|
|
|
|
{
|
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Set the right machine number. */
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
static boolean
|
|
|
|
|
|
elf32_sparc_object_p (abfd)
|
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
{
|
|
|
|
|
|
if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
|
1996-01-30 04:01:29 +08:00
|
|
|
|
{
|
|
|
|
|
|
if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
|
|
|
|
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
|
|
|
|
|
bfd_mach_sparc_v8plusa);
|
|
|
|
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
|
|
|
|
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
|
|
|
|
|
bfd_mach_sparc_v8plus);
|
|
|
|
|
|
else
|
|
|
|
|
|
return false;
|
|
|
|
|
|
}
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
else
|
|
|
|
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* The final processing done just before writing out the object file.
|
|
|
|
|
|
We need to set the e_machine field appropriately. */
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
elf32_sparc_final_write_processing (abfd, linker)
|
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
|
boolean linker;
|
|
|
|
|
|
{
|
1996-01-30 04:01:29 +08:00
|
|
|
|
switch (bfd_get_mach (abfd))
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
{
|
1996-01-30 04:01:29 +08:00
|
|
|
|
case bfd_mach_sparc :
|
|
|
|
|
|
break; /* nothing to do */
|
|
|
|
|
|
case bfd_mach_sparc_v8plus :
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
|
|
|
|
|
|
elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
|
|
|
|
|
|
elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS;
|
1996-01-30 04:01:29 +08:00
|
|
|
|
break;
|
|
|
|
|
|
case bfd_mach_sparc_v8plusa :
|
|
|
|
|
|
elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
|
|
|
|
|
|
elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
|
|
|
|
|
|
elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1;
|
|
|
|
|
|
break;
|
|
|
|
|
|
default :
|
|
|
|
|
|
abort ();
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1993-07-20 03:12:59 +08:00
|
|
|
|
#define TARGET_BIG_SYM bfd_elf32_sparc_vec
|
|
|
|
|
|
#define TARGET_BIG_NAME "elf32-sparc"
|
|
|
|
|
|
#define ELF_ARCH bfd_arch_sparc
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
#define ELF_MACHINE_CODE EM_SPARC
|
1996-01-21 00:53:44 +08:00
|
|
|
|
#define ELF_MACHINE_ALT1 EM_SPARC32PLUS
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
#define ELF_MAXPAGESIZE 0x10000
|
1996-04-03 03:57:33 +08:00
|
|
|
|
|
|
|
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup elf32_sparc_reloc_type_lookup
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-04 06:09:40 +08:00
|
|
|
|
#define elf_info_to_howto elf32_sparc_info_to_howto
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
#define elf_backend_create_dynamic_sections \
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
|
|
|
|
_bfd_elf_create_dynamic_sections
|
1994-10-11 04:30:32 +08:00
|
|
|
|
#define elf_backend_check_relocs elf32_sparc_check_relocs
|
Add support for ELF shared libraries. Loosely based on work by
Eric Youngdale <ericy@cais.com>.
* libelf.h (struct elf_backend_data): Add new fields for dynamic
linking: elf_backend_create_dynamic_sections,
elf_backend_adjust_dynamic_symbol,
elf_backend_size_dynamic_sections,
elf_backend_finish_dynamic_symbol,
elf_backend_finish_dynamic_sections.
(struct elf_link_hash_entry): Change type of align field to
bfd_size_type. Add fields dynindx, dynstr_index, weakdef,
elf_link_hash_flags.
(struct elf_link_hash_table): Add fields dynobj, dynsymcount,
dynstr, bucketcount.
(bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare.
(bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare.
(bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare.
(bfd_elf32_add_dynamic_entry): Declare.
(bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare.
(bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare.
(bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare.
(bfd_elf64_add_dynamic_entry): Declare.
* elfcode.h (Elf_External_Dyn): Define.
(elf_swap_reloc_in): Define as macro using NAME. Make externally
visible.
(elf_swap_reloc_out): Likewise.
(elf_swap_reloca_in, elf_swap_reloca_out): Likewise.
(elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME
and as new externally visible function.
(elf_fake_sections): Set section type of dynamic sections based on
section names.
(elf_write_phdrs): Remove.
(assign_file_position_for_section): Add new align argument.
Change all callers.
(get_program_header_size): New static function.
(struct seg_info): Remove.
(map_program_segments): Completely rewrite.
(assign_file_positions_except_relocs): Completely rewrite.
(assign_file_positions_for_relocs): Don't set a file position for
sections which already have one. Don't bother to align the file
position here.
(section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC
section types.
(elf_section_from_bfd_section): Likewise.
(elf_slurp_symbol_table): If section_from_elf_index fails, just
use bfd_abs_section rather than returning an error.
(elf_sizeof_headers): Make useful.
(elf_link_record_dynamic_symbol): New static function.
(elf_link_add_object_symbols): Handle dynamic objects.
(elf_link_create_dynamic_sections): New static function.
(elf_add_dynamic_entry): Define as macro using NAME and as new
externally visible function.
(NAME(bfd_elf,record_link_assignment)): New function.
(elf_buckets): New static variable.
(NAME(bfd_elf,size_dynamic_sections)): New function.
(struct elf_final_link_info): Add dynsym_sec and hash_sec fields.
(elf_bfd_final_link): Handle dynamic linking. Create a section
symbol for all ELF sections, not all BFD sections. Store section
symbol index in target_index field, not index field. Traverse
over global symbols even if stripping.
(elf_link_output_extsym): Output dynamic symbols. Mark symbols
defined by dynamic objects as undefined.
(elf_link_input_bfd): Ignore dynamic objects. Use target_index
field for section relocs, and make sure it is set.
(elf_reloc_link_order): Use target_index field for section relocs,
and make sure it is set.
* elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index,
weakdef and elf_link_hash_flags fields.
(_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount,
dynstr and bucketcount fields.
* elf32-target.h: Initialize new dynamic linking fields.
* elf64-target.h: Likewise.
* elf32-i386.c: New functions for dynamic linking support.
* elf32-sparc.c: Likewise.
* bfd-in.h (bfd_elf32_record_link_assignment): Declare.
(bfd_elf64_record_link_assignment): Declare.
(bfd_elf32_size_dynamic_sections): Declare.
(bfd_elf64_size_dynamic_sections): Declare.
* bfd-in2.h: Rebuilt.
1994-05-20 02:23:40 +08:00
|
|
|
|
#define elf_backend_adjust_dynamic_symbol \
|
|
|
|
|
|
elf32_sparc_adjust_dynamic_symbol
|
|
|
|
|
|
#define elf_backend_size_dynamic_sections \
|
|
|
|
|
|
elf32_sparc_size_dynamic_sections
|
|
|
|
|
|
#define elf_backend_relocate_section elf32_sparc_relocate_section
|
|
|
|
|
|
#define elf_backend_finish_dynamic_symbol \
|
|
|
|
|
|
elf32_sparc_finish_dynamic_symbol
|
|
|
|
|
|
#define elf_backend_finish_dynamic_sections \
|
|
|
|
|
|
elf32_sparc_finish_dynamic_sections
|
* archures.c (bfd_mach_sparc_v9): Renamed from bfd_mach_sparc64.
start-sanitize-v8plus
(bfd_mach_sparc_{v8plus,v8plusa}): Define.
end-sanitize-v8plus
(bfd_mach_sparc_v9a): Define.
* bfd-in2.h: Regenerated.
* aoutx.h (aout,machine_type): bfd_mach_sparc64 renamed to
bfd_mach_sparc_v9.
* config.bfd (sparc64-*-sysv4*,sparc64-*-solaris2*): Set targ_defvec
to bfd_elf32_sparc_vec.
* cpu-sparc.c (arch_info_struct): Renamed from sparc_arch_info.
start-sanitize-v8plus
Add v8plus{,a} support.
end-sanitize-v8plus
Add v9a support.
start-sanitize-v8plus
* elf32-sparc.h: #include "elf/sparc.h".
(elf32_sparc_set_private_flags, elf32_sparc_copy_private_bfd_data,
elf32_sparc_merge_private_bfd_data, elf32_sparc_object_p,
elf32_sparc_final_write_processing): New functions.
(bfd_elf32_bfd_set_private_flags, bfd_elf32_bfd_copy_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data, elf_backend_object_p,
elf_backend_final_write_processing): Define.
end-sanitize-v8plus
1996-01-23 01:15:49 +08:00
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#define bfd_elf32_bfd_merge_private_bfd_data \
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elf32_sparc_merge_private_bfd_data
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#define elf_backend_object_p elf32_sparc_object_p
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#define elf_backend_final_write_processing \
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elf32_sparc_final_write_processing
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
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#define elf_backend_want_got_plt 0
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1995-11-28 01:42:27 +08:00
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#define elf_backend_plt_readonly 0
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 10:22:00 +08:00
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#define elf_backend_want_plt_sym 1
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1993-07-20 03:12:59 +08:00
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#include "elf32-target.h"
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