1993-02-27 15:05:09 +08:00
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/* Target definitions for 32-bit ELF
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1994-04-07 09:58:27 +08:00
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Copyright 1993, 1994 Free Software Foundation, Inc.
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1993-02-27 15:05:09 +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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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This structure contains everything that BFD knows about a target.
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It includes things like its byte order, name, what routines to call
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to do various operations, etc. Every BFD points to a target structure
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with its "xvec" member.
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There are two such structures here: one for big-endian machines and
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one for little-endian machines. */
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* targets.c (bfd_target): Rearranged fields in target vector.
Removed _bfd_debug_info_start, _bfd_debug_info_end and
_bfd_debug_info_accumulate, which were never used.
(BFD_JUMP_TABLE_GENERIC, BFD_JUMP_TABLE_COPY): Defined.
(BFD_JUMP_TABLE_CORE, BFD_JUMP_TABLE_ARCHIVE): Defined.
(BFD_JUMP_TABLE_SYMBOLS, BFD_JUMP_TABLE_RELOCS): Defined.
(BFD_JUMP_TABLE_WRITE, BFD_JUMP_TABLE_LINK): Defined.
* All backends: Changed to use the new BFD_JUMP_TABLE_* macros
rather than the single JUMP_TABLE macro. Removed many of the
weird macro definitions needed to support the monolithic
JUMP_TABLE.
* bfd-in.h (JUMP_TABLE): Removed.
* libbfd-in.h: Define a bunch of macros, and declare a few
functions, for use with the new BFD_JUMP_TABLE_* macros.
* libbfd.c (_bfd_dummy_new_section_hook): Removed.
(bfd_false): Set bfd_error_invalid_operation.
(bfd_nullvoidptr): Likewise.
(bfd_n1): New function.
(_bfd_nocore_core_file_matches_executable_p): Renamed from
_bfd_dummy_core_file_matches_executable_p.
(_bfd_nocore_core_file_failing_command): Similar rename. Set
bfd_error_invalid_operation.
(_bfd_nocore_core_file_failing_signal): Likewise.
(_bfd_generic_get_section_contents): Renamed from
bfd_generic_get_section_contents. Changed all callers.
(_bfd_generic_set_section_contents): Similar rename.
* ieee.c: #if 0 out ieee_bfd_debug_info_start,
ieee_bfd_debug_info_end, ieee_bfd_debug_info_accumulate. They
were never called.
* bfd-in2.h: Rebuilt.
* libbfd.h: Rebuilt.
1994-04-07 06:00:40 +08:00
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#define bfd_elf32_close_and_cleanup _bfd_generic_close_and_cleanup
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#define bfd_elf32_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
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#ifndef bfd_elf32_get_section_contents
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#define bfd_elf32_get_section_contents _bfd_generic_get_section_contents
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1993-04-29 06:49:48 +08:00
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#endif
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1993-05-26 04:11:26 +08:00
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#define bfd_elf32_bfd_get_relocated_section_contents \
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1993-02-27 15:05:09 +08:00
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bfd_generic_get_relocated_section_contents
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1993-05-26 04:11:26 +08:00
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#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
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#define bfd_elf32_bfd_make_debug_symbol \
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1993-02-27 15:05:09 +08:00
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((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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* bfd-in2.h, libbfd.h, libcoff.h: Rebuilt.
* bfd-in.h (JUMP_TABLE): Add new entries to the jump table
for bfd_copy_private_section_data, bfd_copy_private_bfd_data,
and bfd_is_local_label.
* targets.c: Add new entries to the bfd_target structure.
* bfd.c (bfd_copy_private_bfd_data): New definition.
* section.c (bfd_copy_private_section_data): New definition.
* syms.c (bfd_is_local_label): New definition.
* libbfd-in.h (bfd_generic_is_local_label): Declare.
* libbfd.c (bfd_generic_is_local_label): New function.
* *-core.c: Provide default definitions for new functions in
the target vector which all point to bfd_false.
* aout-target.h, coffcode.h, elf32-target.h elf64-target.h, ieee.c
libaout.h, libecoff.h, nlm-target.h, oasys.c, srec.c, tekhex.c
Default new vectors for copying private backend data to bfd_true.
Default new vector for determining if a symbol is a local label
to bfd_generic_is_local_label.
* som.c (som_bfd_copy_private_section_data): New function.
(som_bfd_is_local_label): New function.
(som_bfd_copy_private_bfd_data): For now default to bfd_true.
* elf32-hppa.c (hppa_elf_is_local_label): New function.
1994-03-16 15:02:05 +08:00
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#ifndef bfd_elf32_bfd_copy_private_section_data
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#define bfd_elf32_bfd_copy_private_section_data \
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((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_true)
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#endif
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#ifndef bfd_elf32_bfd_copy_private_bfd_data
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#define bfd_elf32_bfd_copy_private_bfd_data \
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((boolean (*) PARAMS ((bfd *, bfd *))) bfd_true)
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#endif
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#ifndef bfd_elf32_bfd_is_local_label
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#define bfd_elf32_bfd_is_local_label bfd_generic_is_local_label
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#endif
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1994-04-22 01:01:12 +08:00
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#ifndef bfd_elf32_get_dynamic_reloc_upper_bound
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#define bfd_elf32_get_dynamic_reloc_upper_bound \
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_bfd_nodynamic_get_dynamic_reloc_upper_bound
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#endif
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#ifndef bfd_elf32_canonicalize_dynamic_reloc
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#define bfd_elf32_canonicalize_dynamic_reloc \
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_bfd_nodynamic_canonicalize_dynamic_reloc
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#endif
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* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
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#ifdef elf_backend_relocate_section
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#ifndef bfd_elf32_bfd_link_hash_table_create
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#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
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#endif
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#else /* ! defined (elf_backend_relocate_section) */
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/* If no backend relocate_section routine, use the generic linker. */
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#ifndef bfd_elf32_bfd_link_hash_table_create
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#define bfd_elf32_bfd_link_hash_table_create \
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_bfd_generic_link_hash_table_create
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#endif
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#ifndef bfd_elf32_bfd_link_add_symbols
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#define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
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#endif
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#ifndef bfd_elf32_bfd_final_link
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#define bfd_elf32_bfd_final_link _bfd_generic_final_link
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#endif
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#endif /* ! defined (elf_backend_relocate_section) */
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1993-07-27 02:46:37 +08:00
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#ifndef elf_info_to_howto_rel
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#define elf_info_to_howto_rel 0
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#endif
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#ifndef ELF_MAXPAGESIZE
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#define ELF_MAXPAGESIZE 1
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#endif
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* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
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#ifndef elf_backend_collect
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#define elf_backend_collect false
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#endif
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1993-11-19 01:10:42 +08:00
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#ifndef elf_backend_sym_is_global
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#define elf_backend_sym_is_global 0
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#endif
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* elfcode.h (elf_object_p): Rather than looking through an array
of architectures, get the ELF EM_xxx code from the backend
information. Let the generic ELF target match any EM_xxx code not
matched by another ELF target. Call elf_backend_object_p to let
the backend do more checks and set global information.
* libelf.h (struct elf_backend_data): Added elf_machine_code and
elf_backend_object_p fields.
(struct bfd_elf_arch_map): Removed.
(bfd_elf_arch_map, bfd_elf_arch_map_size): Don't declare.
* elf32-target.h, elf64-target.h: Initialize elf_machine_code
field with ELF_MACHINE_CODE. Initialize elf_backend_object_p
field with elf_backend_object_p (if it is defined).
* elf32-gen.c, elf32-hppa.c, elf32-i386.c, elf32-i860.c,
elf32-m68k.c, elf32-m88k.c, elf32-mips.c, elf32-sparc.c,
elf64-gen.c (ELF_MACHINE_CODE): Defined.
* elf32-mips.c: Include ecoffswap.h to get ECOFF swapping
routines.
(mips_elf_object_p): Set the right machine number.
(mips_elf_ecoff_debug_swap): Defined.
(elf_backend_object_p): Defined to be mips_elf_object_p.
(elf_backend_ecoff_debug_swap): Defined to be
mips_elf_ecoff_debug_swap.
* elf.c (bfd_elf_arch_map, bfd_elf_arch_map_size): Removed.
* elf32-mips.c (elf_mips_howto_table): Don't complain on overflow
for R_MIPS_26. Correct overflow detection requires matching the
upper four bits of the destination against the PC. From Ted Lemon
<mellon@pepper.ncd.com>.
* elf32-hppa.c (elf_hppa_reloc_type_lookup): Return type
should point to const data.
1993-11-10 05:08:58 +08:00
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#ifndef elf_backend_object_p
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1993-11-19 01:10:42 +08:00
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#define elf_backend_object_p 0
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* elfcode.h (elf_object_p): Rather than looking through an array
of architectures, get the ELF EM_xxx code from the backend
information. Let the generic ELF target match any EM_xxx code not
matched by another ELF target. Call elf_backend_object_p to let
the backend do more checks and set global information.
* libelf.h (struct elf_backend_data): Added elf_machine_code and
elf_backend_object_p fields.
(struct bfd_elf_arch_map): Removed.
(bfd_elf_arch_map, bfd_elf_arch_map_size): Don't declare.
* elf32-target.h, elf64-target.h: Initialize elf_machine_code
field with ELF_MACHINE_CODE. Initialize elf_backend_object_p
field with elf_backend_object_p (if it is defined).
* elf32-gen.c, elf32-hppa.c, elf32-i386.c, elf32-i860.c,
elf32-m68k.c, elf32-m88k.c, elf32-mips.c, elf32-sparc.c,
elf64-gen.c (ELF_MACHINE_CODE): Defined.
* elf32-mips.c: Include ecoffswap.h to get ECOFF swapping
routines.
(mips_elf_object_p): Set the right machine number.
(mips_elf_ecoff_debug_swap): Defined.
(elf_backend_object_p): Defined to be mips_elf_object_p.
(elf_backend_ecoff_debug_swap): Defined to be
mips_elf_ecoff_debug_swap.
* elf.c (bfd_elf_arch_map, bfd_elf_arch_map_size): Removed.
* elf32-mips.c (elf_mips_howto_table): Don't complain on overflow
for R_MIPS_26. Correct overflow detection requires matching the
upper four bits of the destination against the PC. From Ted Lemon
<mellon@pepper.ncd.com>.
* elf32-hppa.c (elf_hppa_reloc_type_lookup): Return type
should point to const data.
1993-11-10 05:08:58 +08:00
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#endif
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1993-08-25 09:15:07 +08:00
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#ifndef elf_backend_symbol_processing
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1993-11-19 01:10:42 +08:00
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#define elf_backend_symbol_processing 0
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1993-08-25 09:15:07 +08:00
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#endif
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#ifndef elf_backend_symbol_table_processing
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1993-11-19 01:10:42 +08:00
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#define elf_backend_symbol_table_processing 0
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1993-08-25 09:15:07 +08:00
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#endif
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#ifndef elf_backend_section_processing
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1993-11-19 01:10:42 +08:00
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#define elf_backend_section_processing 0
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1993-08-25 09:15:07 +08:00
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#endif
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#ifndef elf_backend_section_from_shdr
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1993-11-19 01:10:42 +08:00
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#define elf_backend_section_from_shdr 0
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1993-08-25 09:15:07 +08:00
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#endif
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#ifndef elf_backend_fake_sections
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1993-11-19 01:10:42 +08:00
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#define elf_backend_fake_sections 0
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1993-08-25 09:15:07 +08:00
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#endif
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#ifndef elf_backend_section_from_bfd_section
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1993-11-19 01:10:42 +08:00
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#define elf_backend_section_from_bfd_section 0
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#endif
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* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
|
|
|
#ifndef elf_backend_add_symbol_hook
|
|
|
|
#define elf_backend_add_symbol_hook 0
|
|
|
|
#endif
|
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
|
|
|
#ifndef elf_backend_create_dynamic_sections
|
|
|
|
#define elf_backend_create_dynamic_sections 0
|
|
|
|
#endif
|
|
|
|
#ifndef elf_backend_adjust_dynamic_symbol
|
|
|
|
#define elf_backend_adjust_dynamic_symbol 0
|
|
|
|
#endif
|
|
|
|
#ifndef elf_backend_size_dynamic_sections
|
|
|
|
#define elf_backend_size_dynamic_sections 0
|
|
|
|
#endif
|
* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
|
|
|
#ifndef elf_backend_relocate_section
|
|
|
|
#define elf_backend_relocate_section 0
|
|
|
|
#endif
|
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
|
|
|
#ifndef elf_backend_finish_dynamic_symbol
|
|
|
|
#define elf_backend_finish_dynamic_symbol 0
|
|
|
|
#endif
|
|
|
|
#ifndef elf_backend_finish_dynamic_sections
|
|
|
|
#define elf_backend_finish_dynamic_sections 0
|
|
|
|
#endif
|
1994-04-08 02:12:25 +08:00
|
|
|
#ifndef elf_backend_begin_write_processing
|
|
|
|
#define elf_backend_begin_write_processing 0
|
|
|
|
#endif
|
1993-11-19 01:10:42 +08:00
|
|
|
#ifndef elf_backend_final_write_processing
|
|
|
|
#define elf_backend_final_write_processing 0
|
1993-08-25 09:15:07 +08:00
|
|
|
#endif
|
1993-11-10 00:33:28 +08:00
|
|
|
#ifndef elf_backend_ecoff_debug_swap
|
1993-11-19 01:10:42 +08:00
|
|
|
#define elf_backend_ecoff_debug_swap 0
|
1993-11-10 00:33:28 +08:00
|
|
|
#endif
|
1993-08-25 09:15:07 +08:00
|
|
|
|
1993-06-22 11:06:29 +08:00
|
|
|
static CONST struct elf_backend_data elf32_bed =
|
1993-02-27 15:05:09 +08:00
|
|
|
{
|
1993-06-03 05:24:35 +08:00
|
|
|
#ifdef USE_REL
|
|
|
|
0, /* use_rela_p */
|
|
|
|
#else
|
|
|
|
1, /* use_rela_p */
|
|
|
|
#endif
|
|
|
|
0, /* elf_64_p */
|
|
|
|
ELF_ARCH, /* arch */
|
* elfcode.h (elf_object_p): Rather than looking through an array
of architectures, get the ELF EM_xxx code from the backend
information. Let the generic ELF target match any EM_xxx code not
matched by another ELF target. Call elf_backend_object_p to let
the backend do more checks and set global information.
* libelf.h (struct elf_backend_data): Added elf_machine_code and
elf_backend_object_p fields.
(struct bfd_elf_arch_map): Removed.
(bfd_elf_arch_map, bfd_elf_arch_map_size): Don't declare.
* elf32-target.h, elf64-target.h: Initialize elf_machine_code
field with ELF_MACHINE_CODE. Initialize elf_backend_object_p
field with elf_backend_object_p (if it is defined).
* elf32-gen.c, elf32-hppa.c, elf32-i386.c, elf32-i860.c,
elf32-m68k.c, elf32-m88k.c, elf32-mips.c, elf32-sparc.c,
elf64-gen.c (ELF_MACHINE_CODE): Defined.
* elf32-mips.c: Include ecoffswap.h to get ECOFF swapping
routines.
(mips_elf_object_p): Set the right machine number.
(mips_elf_ecoff_debug_swap): Defined.
(elf_backend_object_p): Defined to be mips_elf_object_p.
(elf_backend_ecoff_debug_swap): Defined to be
mips_elf_ecoff_debug_swap.
* elf.c (bfd_elf_arch_map, bfd_elf_arch_map_size): Removed.
* elf32-mips.c (elf_mips_howto_table): Don't complain on overflow
for R_MIPS_26. Correct overflow detection requires matching the
upper four bits of the destination against the PC. From Ted Lemon
<mellon@pepper.ncd.com>.
* elf32-hppa.c (elf_hppa_reloc_type_lookup): Return type
should point to const data.
1993-11-10 05:08:58 +08:00
|
|
|
ELF_MACHINE_CODE, /* elf_machine_code */
|
1993-11-10 00:33:28 +08:00
|
|
|
ELF_MAXPAGESIZE, /* maxpagesize */
|
* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
|
|
|
elf_backend_collect,
|
1993-11-19 01:10:42 +08:00
|
|
|
elf_info_to_howto,
|
|
|
|
elf_info_to_howto_rel,
|
|
|
|
elf_backend_sym_is_global,
|
|
|
|
elf_backend_object_p,
|
|
|
|
elf_backend_symbol_processing,
|
|
|
|
elf_backend_symbol_table_processing,
|
|
|
|
elf_backend_section_processing,
|
|
|
|
elf_backend_section_from_shdr,
|
|
|
|
elf_backend_fake_sections,
|
|
|
|
elf_backend_section_from_bfd_section,
|
* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
|
|
|
elf_backend_add_symbol_hook,
|
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_backend_create_dynamic_sections,
|
|
|
|
elf_backend_adjust_dynamic_symbol,
|
|
|
|
elf_backend_size_dynamic_sections,
|
* elfcode.h: Include bfdlink.h. Added several new functions to do
linking.
(ELF_R_TYPE): Define.
(bfd_add_to_strtab): Return unsigned long. Change check for
realloc failure.
(elf_fake_sections): Check return value of bfd_add_to_strtab.
(elf_compute_section_file_positions): Add link_info argument.
Call elf_backend_begin_write_processing hook and prep_headers
here. Only call swap_out_syms if link_info is NULL. Set up
.shstrtab section here. Pass dosyms argument to
assign_file_positions_except_relocs. Set output_has_begun flag.
(assign_file_positions_for_symtab_and_strtabs): Add dosyms
argument, and use it to control setting .symtab and .strtab file
positions.
(assign_file_positions_except_relocs): Add dosyms argument, and
pass it on.
(prep_headers): Check return value of bfd_add_to_strtab.
(swap_out_syms): Likewise. Also, don't set up .shstrtab here.
(NAME(bfd_elf,write_object_contents)): Some calls moved into
elf_compute_section_file_positions.
(elf_set_section_contents): Likewise.
(elf_slurp_symbol_table): SHN_LORESERV corrected to SHN_LORESERVE.
* libelf.h: Include bfdlink.h.
(struct elf_backend_data): Add fields collect,
elf_add_symbol_hook, elf_backend_relocate_section.
(struct bfd_elf_section_data): Add field rel_hashes.
(struct elf_obj_tdata): Remove fields internal_syms and symbols.
Add field sym_hashes.
(obj_symbols, obj_internal_syms): Remove definitions.
(elf_sym_hashes): Define.
(struct elf_link_hash_entry): Define.
(struct elf_link_hash_table): Define.
(elf_link_hash_lookup): Define.
(elf_link_hash_traverse): Define.
(elf_hash_table): Define.
(_bfd_elf_link_hash_table_create): Declare.
(bfd_elf32_bfd_link_add_symbols): Declare.
(bfd_elf32_bfd_final_link): Declare.
(bfd_elf64_bfd_link_add_symbols): Declare.
(bfd_elf64_bfd_final_link): Declare.
* elf.c: Include bfdlink.h.
(elf_link_hash_newfunc): New function.
(_bfd_elf_link_hash_table_create): New function.
* elf32-target.h (elf_backend_relocate_section): If not defined,
define as 0 and use generic linker. Otherwise, use ELF backend
linker.
(elf_backend_collect): If not defined, define as false.
(elf_backend_add_symbol_hook): If not defined, define as 0.
(elf32_bed): Initialize new fields.
* elf64-target.h: Same changes as elf32-target.h.
* elf32-i386.c: Include bfdlink.h.
(elf_i386_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-sparc.c: Include bfdlink.h.
(elf_info_to_howto): Change type of dst from Elf32_Internal_Rela
to Elf_Internal_Rela (they're the same type anyhow).
(elf_sparc_relocate_section): New function.
(elf_backend_relocate_section): Define.
* elf32-mips.c (elf_backend_collect): Define.
1994-05-10 00:58:36 +08:00
|
|
|
elf_backend_relocate_section,
|
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_backend_finish_dynamic_symbol,
|
|
|
|
elf_backend_finish_dynamic_sections,
|
1994-04-08 02:12:25 +08:00
|
|
|
elf_backend_begin_write_processing,
|
1993-11-19 01:10:42 +08:00
|
|
|
elf_backend_final_write_processing,
|
|
|
|
elf_backend_ecoff_debug_swap
|
1993-02-27 15:05:09 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
#ifdef TARGET_BIG_SYM
|
|
|
|
bfd_target TARGET_BIG_SYM =
|
|
|
|
{
|
|
|
|
/* name: identify kind of target */
|
|
|
|
TARGET_BIG_NAME,
|
|
|
|
|
|
|
|
/* flavour: general indication about file */
|
|
|
|
bfd_target_elf_flavour,
|
|
|
|
|
|
|
|
/* byteorder_big_p: data is big endian */
|
|
|
|
true,
|
|
|
|
|
|
|
|
/* header_byteorder_big_p: header is also big endian */
|
|
|
|
true,
|
|
|
|
|
|
|
|
/* object_flags: mask of all file flags */
|
|
|
|
(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
|
|
|
|
DYNAMIC | WP_TEXT),
|
|
|
|
|
|
|
|
/* section_flags: mask of all section flags */
|
|
|
|
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
|
1993-09-23 23:14:12 +08:00
|
|
|
SEC_CODE | SEC_DATA | SEC_DEBUGGING),
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* leading_symbol_char: is the first char of a user symbol
|
|
|
|
predictable, and if so what is it */
|
|
|
|
0,
|
|
|
|
|
|
|
|
/* ar_pad_char: pad character for filenames within an archive header
|
|
|
|
FIXME: this really has nothing to do with ELF, this is a characteristic
|
|
|
|
of the archiver and/or os and should be independently tunable */
|
|
|
|
'/',
|
|
|
|
|
|
|
|
/* ar_max_namelen: maximum number of characters in an archive header
|
|
|
|
FIXME: this really has nothing to do with ELF, this is a characteristic
|
|
|
|
of the archiver and should be independently tunable. This value is
|
|
|
|
a WAG (wild a** guess) */
|
|
|
|
15,
|
|
|
|
|
|
|
|
/* align_power_min: minimum alignment restriction for any section
|
|
|
|
FIXME: this value may be target machine dependent */
|
|
|
|
3,
|
|
|
|
|
|
|
|
/* Routines to byte-swap various sized integers from the data sections */
|
1993-09-08 02:32:33 +08:00
|
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* Routines to byte-swap various sized integers from the file headers */
|
1993-09-08 02:32:33 +08:00
|
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* bfd_check_format: check the format of a file being read */
|
|
|
|
{ _bfd_dummy_target, /* unknown format */
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_object_p, /* assembler/linker output (object file) */
|
1993-02-27 15:05:09 +08:00
|
|
|
bfd_generic_archive_p, /* an archive */
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_core_file_p /* a core file */
|
1993-02-27 15:05:09 +08:00
|
|
|
},
|
|
|
|
|
|
|
|
/* bfd_set_format: set the format of a file being written */
|
|
|
|
{ bfd_false,
|
1993-06-25 05:30:26 +08:00
|
|
|
bfd_elf_mkobject,
|
1993-02-27 15:05:09 +08:00
|
|
|
_bfd_generic_mkarchive,
|
|
|
|
bfd_false
|
|
|
|
},
|
|
|
|
|
|
|
|
/* bfd_write_contents: write cached information into a file being written */
|
|
|
|
{ bfd_false,
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_write_object_contents,
|
1993-02-27 15:05:09 +08:00
|
|
|
_bfd_write_archive_contents,
|
|
|
|
bfd_false
|
|
|
|
},
|
|
|
|
|
* targets.c (bfd_target): Rearranged fields in target vector.
Removed _bfd_debug_info_start, _bfd_debug_info_end and
_bfd_debug_info_accumulate, which were never used.
(BFD_JUMP_TABLE_GENERIC, BFD_JUMP_TABLE_COPY): Defined.
(BFD_JUMP_TABLE_CORE, BFD_JUMP_TABLE_ARCHIVE): Defined.
(BFD_JUMP_TABLE_SYMBOLS, BFD_JUMP_TABLE_RELOCS): Defined.
(BFD_JUMP_TABLE_WRITE, BFD_JUMP_TABLE_LINK): Defined.
* All backends: Changed to use the new BFD_JUMP_TABLE_* macros
rather than the single JUMP_TABLE macro. Removed many of the
weird macro definitions needed to support the monolithic
JUMP_TABLE.
* bfd-in.h (JUMP_TABLE): Removed.
* libbfd-in.h: Define a bunch of macros, and declare a few
functions, for use with the new BFD_JUMP_TABLE_* macros.
* libbfd.c (_bfd_dummy_new_section_hook): Removed.
(bfd_false): Set bfd_error_invalid_operation.
(bfd_nullvoidptr): Likewise.
(bfd_n1): New function.
(_bfd_nocore_core_file_matches_executable_p): Renamed from
_bfd_dummy_core_file_matches_executable_p.
(_bfd_nocore_core_file_failing_command): Similar rename. Set
bfd_error_invalid_operation.
(_bfd_nocore_core_file_failing_signal): Likewise.
(_bfd_generic_get_section_contents): Renamed from
bfd_generic_get_section_contents. Changed all callers.
(_bfd_generic_set_section_contents): Similar rename.
* ieee.c: #if 0 out ieee_bfd_debug_info_start,
ieee_bfd_debug_info_end, ieee_bfd_debug_info_accumulate. They
were never called.
* bfd-in2.h: Rebuilt.
* libbfd.h: Rebuilt.
1994-04-07 06:00:40 +08:00
|
|
|
BFD_JUMP_TABLE_GENERIC (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_COPY (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_CORE (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
|
|
|
|
BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_RELOCS (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_WRITE (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_LINK (bfd_elf32),
|
1994-04-22 01:01:12 +08:00
|
|
|
BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* backend_data: */
|
1993-05-26 04:11:26 +08:00
|
|
|
(PTR) &elf32_bed,
|
1993-02-27 15:05:09 +08:00
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef TARGET_LITTLE_SYM
|
|
|
|
bfd_target TARGET_LITTLE_SYM =
|
|
|
|
{
|
|
|
|
/* name: identify kind of target */
|
|
|
|
TARGET_LITTLE_NAME,
|
|
|
|
|
|
|
|
/* flavour: general indication about file */
|
|
|
|
bfd_target_elf_flavour,
|
|
|
|
|
|
|
|
/* byteorder_big_p: data is big endian */
|
|
|
|
false, /* Nope -- this one's little endian */
|
|
|
|
|
|
|
|
/* header_byteorder_big_p: header is also big endian */
|
|
|
|
false, /* Nope -- this one's little endian */
|
|
|
|
|
|
|
|
/* object_flags: mask of all file flags */
|
|
|
|
(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
|
|
|
|
DYNAMIC | WP_TEXT),
|
|
|
|
|
|
|
|
/* section_flags: mask of all section flags */
|
|
|
|
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
|
1993-09-23 23:14:12 +08:00
|
|
|
SEC_CODE | SEC_DATA | SEC_DEBUGGING),
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* leading_symbol_char: is the first char of a user symbol
|
|
|
|
predictable, and if so what is it */
|
|
|
|
0,
|
|
|
|
|
|
|
|
/* ar_pad_char: pad character for filenames within an archive header
|
|
|
|
FIXME: this really has nothing to do with ELF, this is a characteristic
|
|
|
|
of the archiver and/or os and should be independently tunable */
|
|
|
|
'/',
|
|
|
|
|
|
|
|
/* ar_max_namelen: maximum number of characters in an archive header
|
|
|
|
FIXME: this really has nothing to do with ELF, this is a characteristic
|
|
|
|
of the archiver and should be independently tunable. This value is
|
|
|
|
a WAG (wild a** guess) */
|
|
|
|
15,
|
|
|
|
|
|
|
|
/* align_power_min: minimum alignment restriction for any section
|
|
|
|
FIXME: this value may be target machine dependent */
|
|
|
|
3,
|
|
|
|
|
|
|
|
/* Routines to byte-swap various sized integers from the data sections */
|
1993-09-08 02:32:33 +08:00
|
|
|
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
|
|
|
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
|
|
|
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* Routines to byte-swap various sized integers from the file headers */
|
1993-09-08 02:32:33 +08:00
|
|
|
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
|
|
|
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
|
|
|
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* bfd_check_format: check the format of a file being read */
|
|
|
|
{ _bfd_dummy_target, /* unknown format */
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_object_p, /* assembler/linker output (object file) */
|
1993-02-27 15:05:09 +08:00
|
|
|
bfd_generic_archive_p, /* an archive */
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_core_file_p /* a core file */
|
1993-02-27 15:05:09 +08:00
|
|
|
},
|
|
|
|
|
|
|
|
/* bfd_set_format: set the format of a file being written */
|
|
|
|
{ bfd_false,
|
1993-06-25 05:30:26 +08:00
|
|
|
bfd_elf_mkobject,
|
1993-02-27 15:05:09 +08:00
|
|
|
_bfd_generic_mkarchive,
|
|
|
|
bfd_false
|
|
|
|
},
|
|
|
|
|
|
|
|
/* bfd_write_contents: write cached information into a file being written */
|
|
|
|
{ bfd_false,
|
1993-05-26 04:11:26 +08:00
|
|
|
bfd_elf32_write_object_contents,
|
1993-02-27 15:05:09 +08:00
|
|
|
_bfd_write_archive_contents,
|
|
|
|
bfd_false
|
|
|
|
},
|
|
|
|
|
* targets.c (bfd_target): Rearranged fields in target vector.
Removed _bfd_debug_info_start, _bfd_debug_info_end and
_bfd_debug_info_accumulate, which were never used.
(BFD_JUMP_TABLE_GENERIC, BFD_JUMP_TABLE_COPY): Defined.
(BFD_JUMP_TABLE_CORE, BFD_JUMP_TABLE_ARCHIVE): Defined.
(BFD_JUMP_TABLE_SYMBOLS, BFD_JUMP_TABLE_RELOCS): Defined.
(BFD_JUMP_TABLE_WRITE, BFD_JUMP_TABLE_LINK): Defined.
* All backends: Changed to use the new BFD_JUMP_TABLE_* macros
rather than the single JUMP_TABLE macro. Removed many of the
weird macro definitions needed to support the monolithic
JUMP_TABLE.
* bfd-in.h (JUMP_TABLE): Removed.
* libbfd-in.h: Define a bunch of macros, and declare a few
functions, for use with the new BFD_JUMP_TABLE_* macros.
* libbfd.c (_bfd_dummy_new_section_hook): Removed.
(bfd_false): Set bfd_error_invalid_operation.
(bfd_nullvoidptr): Likewise.
(bfd_n1): New function.
(_bfd_nocore_core_file_matches_executable_p): Renamed from
_bfd_dummy_core_file_matches_executable_p.
(_bfd_nocore_core_file_failing_command): Similar rename. Set
bfd_error_invalid_operation.
(_bfd_nocore_core_file_failing_signal): Likewise.
(_bfd_generic_get_section_contents): Renamed from
bfd_generic_get_section_contents. Changed all callers.
(_bfd_generic_set_section_contents): Similar rename.
* ieee.c: #if 0 out ieee_bfd_debug_info_start,
ieee_bfd_debug_info_end, ieee_bfd_debug_info_accumulate. They
were never called.
* bfd-in2.h: Rebuilt.
* libbfd.h: Rebuilt.
1994-04-07 06:00:40 +08:00
|
|
|
BFD_JUMP_TABLE_GENERIC (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_COPY (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_CORE (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
|
|
|
|
BFD_JUMP_TABLE_SYMBOLS (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_RELOCS (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_WRITE (bfd_elf32),
|
|
|
|
BFD_JUMP_TABLE_LINK (bfd_elf32),
|
1994-04-22 01:01:12 +08:00
|
|
|
BFD_JUMP_TABLE_DYNAMIC (bfd_elf32),
|
1993-02-27 15:05:09 +08:00
|
|
|
|
|
|
|
/* backend_data: */
|
1993-05-26 04:11:26 +08:00
|
|
|
(PTR) &elf32_bed,
|
1993-02-27 15:05:09 +08:00
|
|
|
};
|
|
|
|
#endif
|