ELF. Based on patches by Eric Youngdale <ericy@cais.cais.com>.
* libelf.h (struct elf_link_hash_entry): Remove copy_offset field.
Add got_offset and plt_offset fields.
(ELF_LINK_HASH_REF_DYNAMIC_MULTIPLE): Don't define.
(ELF_LINK_HASH_DEF_DYNAMIC_MULTIPLE): Don't define.
(ELF_LINK_HASH_NEEDS_COPY): Define.
(struct elf_backend_data): Add check_relocs field.
(struct bfd_elf_section_data): Change relocs from PTR to
Elf_Internal_Rela *.
(struct elf_obj_tdata): Add local_got_offsets field.
(elf_local_got_offsets): Define accessor macro.
(bfd_elf32_link_create_dynamic_sections): Declare.
(bfd_elf32_link_record_dynamic_symbol): Declare.
(bfd_elf64_link_create_dynamic_sections): Declare.
(bfd_elf64_link_record_dynamic_symbol): Declare.
* elfcode.h (elf_slurp_reloc_table): Don't use the section data
relocs field.
(elf_link_record_dynamic_symbol): Make globally visible. Use
macro to rename to NAME(bfd_elf,link_record_dynamic_symbol).
(elf_link_add_object_symbols): If creating a shared library, put
make all local symbols dynamic. Don't bother with the
DYNAMIC_MULTIPLE flags. Call the check_relocs backend function if
it is defined.
(elf_link_create_dynamic_sections): Make globally visible. Use
macro to rename to NAME(bfd_elf,link_create_dynamic_sections). If
creating a shared library, make sure that _DYNAMIC is added as a
dynamic symbol.
(elf_link_read_relocs): New function.
(NAME(bfd_elf,record_link_assignment)): If creating a shared
library, always create symbols, and always make them dynamic.
(elf_bfd_final_link): Permit creation of shared libraries.
(elf_link_input_bfd): Use elf_link_read_relocs to get the relocs.
* elf.c (_bfd_elf_link_hash_newfunc): Don't initialize
copy_offset. Initialize got_offset and plt_offset.
* elf32-target.h (elf_backend_check_relocs): Define as 0 if not
defined.
(elf32_bed): Initialize check_relocs field.
* elf64-target.h (elf_backend_check_relocs): Define as 0 if not
defined.
(elf64_bed): Initialize check_relocs field.
* elf32-i386.c (elf_howto_table): Change R_386_PLT32 and
R_386_GOTPC to be pc_relative and pcrel_offset.
(elf_i386_pic_plt0_entry): Define.
(elf_i386_pic_plt_entry): Define.
(elf_i386_create_dynamic_sections): Create a .got.plt section, and
define _GLOBAL_OFFSET_TABLE_ at the start of it. If creating a
shared library, make sure that _GLOBAL_OFFSET_TABLE_ is added as a
dynamic symbol. Don't create .rel.bss if creating a shared
library.
(elf_i386_check_relocs): New function.
(elf_i386_adjust_dynamic_symbol): Don't make a PLT entry if the
symbol already has one. When making a PLT entry, set plt_offset.
Don't create a copy reloc when creating a shared library. Don't
set copy_offset, just set ELF_LINK_HASH_NEEDS_COPY.
(elf_i386_allocate_dynamic_section): Remove.
(elf_i386_size_dynamic_sections): Look through all the sections
rather than assuming we know their names. Remove any empty reloc
or plt sections. Only add a DT_DEBUG entry if not creating a
shared library. Only add a DT_PLTGOT entry if there is a PLT.
Add a DT_TEXTREL entry if required.
(elf_i386_relocate_section): Permit undefined symbols when
creating a shared library. Handle the special relocation types
specially.
(elf_i386_finish_dynamic_symbol): Create a PLT entry if plt_offset
is set. If creating a shared library, produce a PIC PLT entry.
Only mark a PLT symbol as undefined if it was not defined by a
regular object file. Create a GOT entry if got_offset is set.
Create a copy reloc if ELF_LINK_HASH_NEEDS_COPY is set.
(elf_i386_finish_dynamic_sections): Change the handling of
DT_RELSZ to simply subtract out the size of .rel.plt. If creating
a shared library, produce PIC PLT code.
(elf_backend_check_relocs): Define.
* elf32-sparc.c (elf_sparc_howto_table): Change R_SPARC_GOT10,
R_SPARC_GOT22, and R_SPARC_PC10 to not warn about reloc overflow.
(elf32_sparc_create_dynamic_sections): If creating a shared
library, make sure that _GLOBAL_OFFSET_TABLE_ is added as a
dynamic symbol, and set the type to STT_OBJECT. Likewise for
_PROCEDURE_LINKAGE_TABLE_. Don't create .rel.bss if creating a
shared library.
(elf32_sparc_check_relocs): New function.
(elf32_sparc_adjust_dynamic_symbol): Don't make a PLT entry if the
symbol already has one. When making a PLT entry, set plt_offset.
Don't create a copy reloc when creating a shared library. Don't
set copy_offset, just set ELF_LINK_HASH_NEEDS_COPY.
(elf32_sparc_allocate_dynamic_section): Remove.
(elf32_sparc_size_dynamic_sections): Look through all the sections
rather than assuming we know their names. Only add a DT_DEBUG
entry if not creating a shared library. Add a DT_TEXTREL entry if
required.
(elf32_sparc_relocate_section): Permit undefined symbols when
creating a shared library. Handle the special relocation types
specially.
(elf32_sparc_finish_dynamic_symbol): Create a PLT entry if plt_offset
is set. Only mark a PLT symbol as undefined if it was not defined
by a regular object file. Create a GOT entry if got_offset is
set. Create a copy reloc if ELF_LINK_HASH_NEEDS_COPY is set.
(elf32_sparc_finish_dynamic_sections): Store dynobj in a local
variable.
(elf_backend_check_relocs): Define.
common, set the alignment.
(aout_link_add_symbols): Restrict the alignment of a common symbol
to the alignment power given by the architecture.
* elf.c (_bfd_elf_link_hash_newfunc): Don't initialize align. Do
initialize copy_offset.
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Use copy_offset
field rather than align field. Get alignment using bfd_log2
rather than switch.
* elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise.
* elf32-i386.c (elf_i386_finish_dynamic_symbol): Use copy_offset,
not align.
* elf32-sparc.c (elf32_sparc_finish_dynamic_symbol): Likewise.
* elfcode.h (elf_link_add_object_symbols): If symbol is defined as
weak, set ELF_LINK_HASH_DEFINED_WEAK.
(elf_link_output_extsym): If symbol is defined as weak, mark it
STB_WEAK.
(shdr_name): Remove; unused.
* elfcode.h (elf_slurp_reloc_table): Rewrote to handle both REL
and RELA relocs. Free up the unswapped relocs. Permit the relocs
to be cached in the section_data. Correct the reloc address.
(elf_slurp_reloca_table): Remove.
(elf_canonicalize_reloc): Rewrote.
(elf_link_input_bfd): Permit the relocs to be cached in the
section data.
* elfcode.h (swap_symbol_in, swap_symbol_out): Externalize.
(elf_compute_section_file_positions): Pass link_info to
the begin_write_processing hook.
(bfd_elf_write_object_contents): Pass NULL for new link_info
argument to final_write_processing hook.
(elf_link_output_sym): Accept new "input_section" argument for
the symbols's input section. All callers changed. Call the
link_output_symbol_hook if it's defined.
(elf_bfd_final_link): Call the final_write_processing hook if
it's defined.
* libelf.h (elf_backend_link_output_symbol_hook): Declare.
(elf_backend_begin_write_processing): Add new "info" argument.
(elf_backend_final_write_processing): Likewise.
* elf32-target.h (elf_backend_link_output_symbol_hook): Provide
a default definition.
(elf32_bed): Add elf_backend_link_output_symbol_hook.
* elf64-target.h: Likewise.
* Major rework of the PA ELF code. Uses the new style BFD
linker, major cleanups.
* hppa_stubs.h: Rewrite from scratch. Much smaller and simpler.
* elf32-hppa.h: Delete all symbol extension related code.
(hppa_look_for_stubs_in_section): Delete decl.
(elf32_hppa_size_stubs, elf32_hppa_build_stubs): New decls.
* elf32-hppa.c: Symbol extension stuff moved form elf32-hppa.h
into elf32-hppa.c. Do not include aout64.h.
(typdef hppa_stub_type): Delete.
(elf32_hppa_stub_name_list_struct): Delete.
(elf32_hppa_stub_description_struct): Delete.
(arg_reloc_type): Use simpler enumerations. All references changed.
(arg_location, arg_reloc_relocation): Likewise.
(elf32_hppa_symextn_map_struct): Delete.
(get_symbol_value): Delete.
(elf32_hppa_get_sym_extn): Delete.
(find_stubs, new_stubs, type_of_mismatch): Delete.
(find_stub_by_name, add_stub_by_name): Delete.
(hppa_elf_stub_finish, hppa_elf_stub_reloc): Delete.
(hppa_elf_arg_reloc_needed): Renamed. Simplify.
(hppa_elf_build_linker_stub, hppa_elf_create_stub_sec): Delete.
(hppa_elf_long_branch_needed_p): Delete.
(hppa_look_for_stubs_in_section): Delete.
(hppa_elf_get_section_contents): Delete.
(elf32_hppa_backend_symbol_processing): Delete.
(elf32_hppa_backend_section_processing): Delete.
(elf32_hppa_backend_section_from_shdr): Delete.
(elf32_hppa_backend_fake_sections): Delete.
(elf32_hppa_backend_section_from_bfd_section): Delete.
(NEW_INSTRUCTION): Delete.
(CURRENT_STUB_OFFSET): Delete.
(elf32_hppa_relocate_section): New function.
(elf32_hppa_bfd_final_link_relocate): New function.
(elf32_hppa_size_symext): New function.
(elf32_hppa_link_output_symbol_hook): New function.
(elf32_hppa_read_symext_info): New function.
(elf32_hppa_add_symbol_hook): New function.
(elf32_hppa_name_of_stub): New function.
(elf32_hppa_size_of_stub): New function.
(elf32_hppa_build_one_sub): New function.
(elf32_hppa_build_stubs): New function.
(elf32_hppa_size_stubs): New function.
(linker, stub and argument hash tables): Add appropriate
structures, definitions and functions to implement all three
hash tables.
(hppa_elf_relocate_insn): Don't need argument location information
in this function.
(add_entry_to_symext_chain): Accept a symbol's argument location
information rather than the symbol itself. All callers changed.
(hppa_elf_gen_reloc_type): Simplify.
(hppa_elf_set_section_contents): Stub section is no longer special.
(hppa_elf_reloc): Greatly simplify.
(elf32_hppa_begin_write_processing): Accept link_info argument.
Handle being called from the BFD backend linker.
(elf32_hppa_final_write_processing): Likewise.
(elf_hppa_tc_make_sections): No longer call stub_finish.
to prototype.
* elfcode.h (elf_link_input_bfd): New argument "output_names"
added to prototype of relocate_section. Pass the output symbol
names to relocate_section.
* elf32-i386.c (elf_i386_relocate_section): Use "output_names" to
determine the name of a local symbol.
* elf32-mips.c (mips_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
(elf_dt_needed_name): New accessor macro.
* elfcode.h (elf_link_add_object_symbols): If elf_dt_needed_name
is set, use that instead of the filename for the DT_NEEDED dynamic
entry.
* elf.c (bfd_elf_set_dt_needed_name): New function.
* bfd-in.h (bfd_elf_set_dt_needed_name): Declare.
* bfd-in2.h: Rebuilt.
support yet.
* elf32-mips.c (bfd_mips_elf32_swap_gptab_in): New function.
(bfd_mips_elf32_swap_gptab_out): New function.
(mips_elf_object_p): If last symbol is LOCAL, set elf_bad_symtab.
(mips_elf_final_write_processing): Set sh_info field for .gptab.*
sections.
(mips_elf_fake_sections): Set sh_entsize for .gptab.* sections.
(mips_elf_read_ecoff_info): Read and free external symbols last,
not first, for clarity.
(struct mips_elf_link_hash_entry): Define new structure.
(struct mips_elf_link_hash_table): Define new structure.
(mips_elf_link_hash_lookup): Define new macro.
(mips_elf_link_hash_traverse): Define new macro.
(mips_elf_hash_table): Define new macro.
(mips_elf_link_hash_newfunc): New static function.
(mips_elf_link_hash_table_create): New static function.
(mips_elf_add_symbol_hook): New static function.
(struct extsym_info): Define new structure.
(mips_elf_get_extr, mips_elf_set_index): Remove.
(mips_elf_output_extsym): New static function.
(gptab_compare): New static function.
(mips_elf_final_link): Rewrite to use ELF backend linker, and to
merge gptab information in input files.
(mips_elf_relocate_hi16): New static function.
(mips_elf_relocate_section): New static function.
(bfd_elf32_bfd_link_hash_table_create): Define as macro before
including elf32-target.h.
(elf_backend_relocate_section): Likewise.
(elf_backend_add_symbol_hook): Likewise.
* elf.c (_bfd_elf_link_hash_newfunc): Rename from
elf_link_hash_newfunc and make globally visible. Change caller.
(_bfd_elf_link_hash_table_init): New function, broken out of
_bfd_elf_link_hash_table_create.
(_bfd_elf_link_hash_table_create): Use
_bfd_elf_link_hash_table_init.
* libelf.h (struct elf_obj_tdata): Add new field bad_symtab.
(elf_bad_symtab): Define new accessor macro.
(_bfd_elf_link_hash_newfunc): Declare.
(_bew_elf_link_hash_table_init): Declare.
* elfcode.h (elf_object_p): Call backend object_p hook after
swapping in all the section headers.
(map_program_segments): Correct typo: Internal for External.
(elf_link_add_object_symbols): If elf_bad_symtab is set, read all
the symbols. Skip STB_LOCAL symbols rather than giving an error.
(elf_bfd_final_link): If elf_bad_symtab is set, allocate space for
all symbols, not just locals.
(elf_link_output_extsym): Only skip a symbol not mentioned by a
regular file if it is mentioned by a dynamic object.
(elf_link_input_bfd): If elf_bad_symtab is set, read all the
symbols.
code repeated three times in bfd_section_from_shdr in elfcode.h.
* libelf.h (_bfd_elf_make_section_from_shdr): Declare.
* elfcode.h (bfd_section_from_shdr): Use new function
_bfd_elf_make_section_from_shdr to create BFD sections. If a
reloc section does not use the main symbol table, or it is part of
the process image, treat it as a normal section, not relocs.
* elf32-mips.c (mips_elf_section_from_shdr): Use new function
_bfd_elf_make_section_from_shdr.
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.
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.
handling.
* elfcode.h (bfd_section_from_shdr): Handle dynamic symbol table.
* elfcode.h (elf_slurp_symbol_table): Take additional parameter
to select static or dynamic symbol table and return number of
symbols slurped or -1 on error.
* elfcode.h (elf_get_symtab): Set bfd symcount from
elf_slurp_symbol_table result.
* elfcode.h (elf_get_dynamic_symtab_upper_bound,
elf_canonicalize_dynamic_symtab): New functions to handle dynamic
symbol table.
* elf32-target.h, elf64-target.h (BFD_JUMP_TABLE_DYNAMIC):
Change to handle dynamic symbol table, provide default definitions
for dynamic relocs.
* aoutx.h (howto_table_std, NAME(aout,swap_std_reloc_out),
NAME(aout,swap_std_reloc_in), aout_link_input_section_std,
aout_link_reloc_link_order): Handle r_jmptable and r_relative
relocations.
function elf_backend_begin_write_processing when just beginning to
write an object file.
* libelf.h (elf_backend_begin_write_processing): Declare.
* elf{32,64}-target.h (elf_backend_begin_write_processing): Provide
a default definition.
(elf{32,64}_bed): Add elf_backend_begin_write_processing.
* elf32-hppa.h (elf_hppa_tc_symbol): Delete extern declaration.
(elf_hppa_tc_make_sections): Likewise.
* elf32-hppa.c (symext_chain_built): Delete.
(symext_chain_size): Renamed from symextn_contents_real_size.
(elf32_hppa_backend_{begin,final}_write_processing): New functions.
(add_entry_to_symext_chain): New function.
(hppa_elf_set_section_contents): Ignore writes to the symbol extension
section until it's been rebuilt internally.
(hppa_elf_get_section_contents): Symbol extension section is no
longer special.
(elf_backend_{begin,final}_write_processing): Define.
(elf_hppa_tc_make_sections): Simplify now that much code has
migrated into elf32_hppa_backend_{being,final}_write_processing.
information, and to write some of out directly rather than saving
it in memory. Several new functions and structures, and new
arguments to existing functions.
* ecoff.c (ecoff_compute_reloc_file_positions): Compute
sym_filepos as well.
(ecoff_get_extr): Use ifdmap instead of ifdbase.
(ecoff_write_object_contents): Don't compute sym_filepos here.
Only output symbols if outsymbols is not NULL.
(ecoff_bfd_final_link): Adjust for changes in ecoff_debug_info and
bfd_ecoff_debug functions. Write out debugging information here.
(ecoff_final_link_debug_accumulate): Adjust for changes in
bfd_ecoff_debug functions.
(ecoff_link_write_external): Use ifdmap rather than ifdbase.
* elf32-mips.c (mips_elf_read_ecoff_info): Read external symbols
first, to put them in the first memory buffer. Clear fdr field.
(mips_elf_get_extr): Use pointer to unswapped external symbol.
(mips_elf_final_link): Adjust for changes in bfd_ecoff functions.
Preserve .text, .data and .bss even if they are empty. Save
pointer to unswapped external symbol rather than copying it.
Don't free up the external symbols.
* libelf.h (elf_symbol_type): Change mips_extr to PTR.
* bfd-in.h (bfd_ecoff_debug_init, bfd_ecoff_debug_free): Declare.
(bfd_ecoff_debug_accumulate): Update declaration.
(bfd_ecoff_debug_accumulate_other): Rename declaration from
bfd_ecoff_debug_link_other and update.
(bfd_ecoff_write_accumulated_debug): Declare.
* bfd-in2.h: Rebuilt.
* Makefile.in: Rebuilt dependencies.
more efficient backend code can be written for specific object
files. Only existing efficient backend is a.out.
* seclet.c, seclet.h: Removed.
* hash.c, linker.c, genlink.h: New files.
* bfd-in.h: Removed bfd_error_vector. Declared hash table
structures and functions.
(JUMP_TABLE): Removed bfd_seclet_link, added
bfd_link_hash_table_create, bfd_link_add_symbols and
bfd_final_link.
* All backends: Changed accordingly.
* bfd-in2.h: Rebuilt.
* bfd.c (struct _bfd): Added link_next and archive_pass fields.
Removed ld_symbols field.
(bfd_nonrepresentable_section, bfd_undefined_symbol,
bfd_reloc_value_truncated, bfd_reloc_is_dangerous,
bfd_error_vector): Removed.
(bfd_default_error_trap, bfd_error_trap,
bfd_error_nonrepresentabltrap): Removed.
(bfd_get_relocated_section_contents): Pass link_info. Pass
link_order instead of seclet. Pass symbols.
(bfd_relax_section): Pass link_info.
(bfd_seclet_link): Removed.
(bfd_link_hash_table_create, bfd_link_add_symbols,
bfd_final_link): New macros.
* libbfd-in.h: If __GNUC__ is defined and alloca is not, define
alloca as __builtin_alloca. Declare internal linking functions.
* libbfd.h: Rebuilt.
* libbfd.c (bfd_seek): Comment out fseek assertion. It's worked
for months.
* reloc.c (reloc_howto_type): Added error_message argument to
special_function field. Changed all callers and all definitions.
(bfd_get_reloc_size): Make argument a const pointer.
(bfd_perform_relocation): Add error_message argument to hold
string set if return value if bfd_reloc_dangerous. Changed all
callers.
(_bfd_final_link_relocate, _bfd_relocate_contents): New functions.
* section.c (asection): Renamed seclets_head and seclets_tail to
link_order_head and link_order_tail.
* targets.c (bfd_target): Replaced seclet argument with link_info
and link_order and symbols arguments in
bfd_get_relocated_section_contents. Added symbols argument to
bfd_relax_section. Removed bfd_seclet_link. Added
bfd_link_hash_table_create, bfd_link_add_symbols and
bfd_final_link.
* libaout.h (struct aoutdata): Added external_syms,
external_sym_count, external_strings, sym_hashes fields.
(obj_aout_external_syms, obj_aout_external_sym_count,
obj_aout_external_strings, obj_aout_sym_hashes): New accessor
macros.
(WRITE_HEADERS): Only output symbols if outsymbols is not NULL.
* aoutx.h: Wrote new back end linker routines.
(translate_to_native_sym_flags): Return boolean value. Don't use
bfd_error_vector.
(NAME(aout,write_syms)): Return boolean value. Check return value
of translate_to_native_sym_flags and bfd_write.
* aout-target.h (final_link_callback): New function.
(MY_bfd_final_link): New function.
* aout-adobe.c (aout_adobe_write_object_contents): Check return
value of aout_32_write_syms.
* hp300hpux.c (MY(write_object_contents)): Likewise.
* i386lynx.c (WRITE_HEADERS): Likewise.
* libaout.h (WRITE_HEADERS): Likewise.
* bout.c: Changed functions to use link_info->callbacks rather
than bfd_error_vector, and link_orders rather than seclets.
* coff-alpha.c: Likewise.
* coff-h8300.c: Likewise.
* coff-h8500.c: Likewise.
* coff-sh.c: Likewise.
* coff-z8k.c: Likewise.
* elf32-hppa.c: Likewise.
* reloc16.c: Likewise.
* coff-alpha.c (alpha_ecoff_get_relocated_section_contents): Look
up _gp in the hash table rather than in outsymbols.
* coff-a29k.c (a29k_reloc): Pass errors back in new error_message
argument rather than printing them.
* coffcode.h (bfd_coff_reloc16_extra_cases): Take link_info and
link_order arguments rather than seclet. Changed all uses and
definitions.
(bfd_coff_reloc16_estimate): Pass link_info arguments. Changed
all uses and definitions.
* libcoff.h: Rebuilt.
* ecoff.c (ecoff_get_extr): If symbol is defined by linker, but
not by ECOFF, make it scAbs.
(ecoff_bfd_final_link): Renamed from ecoff_bfd_seclet_link and
rewritten.
* elf32-mips.c (mips_elf_final_link): Renamed from
mips_elf_seclet_link and rewritten.
* elf32-hppa.c (elf32_hppa_stub_description): Added link_info
field.
(new_stub, add_stub_by_name, hppa_elf_build_arg_reloc_stub,
hppa_elf_build_long_branch_stub, hppa_look_for_stubs_in_section):
Added link_info arguments. Changed all callers.
* elfcode.h (elf_slurp_symbol_table): Don't quit if outsymbols is
not NULL.
* oasys.c (oasys_write_sections): Return boolean value rather than
using bfd_error_vector.
(oasys_write_object_contents): Check return value of
oasys_write_sections.
* hosts/std-host.h: Don't declare qsort or strtol.
* Makefile.in: Rebuild dependencies.
(BFD_LIBS): Removed seclet.o. Added hash.o and linker.o.
(CFILES): Removed seclet.c. Added hash.c and linker.c.
(HFILES): Removed seclet.h. Added genlink.h.
routines.
* ecoff.c (ecoff_clear_output_flags, ecoff_rel, ecoff_dump_seclet,
ecoff_add_string, ecoff_get_debug): Removed. Functionality now in
ecofflink.c.
(ecoff_get_extr, ecoff_set_index): New functions.
(ecoff_slurp_symbolic_info): Don't save raw_size.
(ecoff_bfd_seclet_link): Rewrote to use ecofflink.c functions.
(ecoff_compute_section_file_positions): Don't set EXEC_P just
because there is a start address.
(ecoff_write_object_contents): Handle external symbols here. Use
ecofflink.c functions to write out debugging information.
* elf32-mips.c (mips_elf_read_ecoff_info, mips_elf_get_extr,
mips_elf_set_index): New functions.
(mips_elf_seclet_link): Discard empty sections, the .options
section and .gptab sections. Handle linking .mdebug section.
* libecoff.h (ecoff_data_type): Removed raw_size and ifdbase.
* libelf.h (elf_symbol_type): Added mips_extr to tc_data union.
* bfd-in.h: Added prototypes for routines in ecofflink.c (some are
called by gas, so they are public).
* bfd-in2.h: Rebuilt.
* Makefile.in (BFD_LIBS): Added ecofflink.o.
(CFILES): Added ecofflink.c.
(ecofflink.o): New target. Rebuilt dependencies.
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.
(struct elf_backend_data): Added elf_backend_ecoff_debug_swap
field. Removed unused write_relocs field.
* elf32-target.h: Adjusted elf_backend_data initialization
accordingly.
* elf64-target.h: Corrected elf_backend_data initialization to
fill in all fields and to set elf_64_p to 1.
handle MIPS specific sections.
* libelf.h (elf_backend_data): Pass fourth argument to
elf_backend_section_from_bfd_section to permit it to control the
section index to use.
(elf_obj_tdata): Add gp and gp_size fields.
(elf_gp, elf_gp_size): New accessor macros.
* elfcode.h: Removed a number of unused local variables.
(elf_fake_sections): Clear section header before calling
elf_backend_fake_sections, not after.
(prep_headers): Return true at end.
(elf_section_from_bfd_section): Pass retval argument to
elf_backend_section_from_bfd_section.
* elf32-hppa.c (elf32_hppa_backend_section_from_bfd_section):
Accept and ignore new retval argument.
* bfd.c: Include libelf.h.
(bfd_set_gp_size): Handle ELF targets.
* Makefile.in (bfd.o): Depends upon libelf.h.
(elf32-mips.o): Depends upon $(INCDIR)/elf/mips.h.
special function for all reloc entries.
* elf32-target.h (TARGET_LITTLE_SYM): Add SEC_CODE to
section_flags.
* libelf.h (elf_symbol_type): Remove desc, type and other fields.
* Makefile.in (elf32-*.o): These depend upon elf32-target.h.
(bfd_shdr_from_section): Ditto.
(write_relocs): Don't change section contents for addend.
(elf_locate_sh): Return type is now always elf_internal_shdr, since the other
types were really aliases for this type anyways. Don't compile this function,
since it is static and doesn't appear to be used in this file.
(sym_is_global): Return non-zero for weak symbols. Abort if sec ptr is null.
(swap_out_syms): Reorder tests so function symbols can be weak.
(elf_slurp_symbol_table): Don't use BSF_EXPORT.
(elf_slurp_reloca_table): Make RELOC_PROCESSING section smaller by
extracting out some common code. Abort if BFD section symbol has null name.
(elf_slurp_reloc_table): Translate ELF section symbols into BFD section
symbols. Don't read section contents to fill in addend field.
* Merged from OSF:
Tue Jun 15 14:38:32 1993 Michael Meissner (meissner@osf.org)
* libelf.h (struct Elf_Sym_Extra): New structure to contain ELF
specific information for a symbol. Put in elf_sym_num, which
gives the external symbol number in the elf object file, since
local symbols must come before global symbols.
(elf_sym_extra): New macro.
(elf_symtab_map): Delete, in favor of using Elf_Sym_Extra.
* elfcode.h (elf_map_symbols): Use Elf_Sym_Extra to map internal
symbol number to external number. Store the address of the
Elf_Sym_Extra field for the symbol in the udata field.
(elf_write_object_contents): Use Elf_Sym_Extra to map out symbols.
Sun Jun 20 16:30:11 1993 Michael Meissner (meissner@osf.org)
* elfcode.h (elf_obj_tdata): Add field to count the size of the
array of pointers to section symbols.
(elf_map_symbols): Bump the max index of the section symbols so
that we don't overwrite memory. Store the max index into the
elf_obj_tdata field.
Sat Jun 19 10:12:27 1993 Michael Meissner (meissner@osf.org)
* elfcode.h (elf_obj_tdata): Add pointer to an array of pointers
to the section symbols we created. Remove unused field internal_syms.
(elf_map_symbols): Fill in array of pointers to section symbols. Only create
section symbols for sections that have SEC_ALLOC set, and have non-zero size.
(elf_symbol_from_bfd_symbol): If udata is NULL, and this is a section symbol,
look up the section in the list of section symbols, and set the udata pointer
appropriately. Otherwise, if udata is still NULL, fail an assertion, and use
0, instead of dropping core.
for 32 bits nor for 64.
Tue Jun 15 14:38:32 1993 Michael Meissner (meissner@osf.org)
* libelf.h (elf_hash): Change declaration to bfd_elf_hash, since
that is what is in elf.c.
Deleted `thunk' structure, merged into tdata, duplicate data eliminated.
Rearranged functions, grouping by function.
Broke up many functions in elfcode.h, re-ordered many parts of file writing
to handle unpredictable state of section relocation table as provided by
various applications.
Still needs cleanup: Merge functions back together, split out data structure
with only data that is used only when writing out object file.
* elf.c (bfd_elf_generic_reloc): New function, taken from coff-mips.c.
* elf32-sparc.c (elf_sparc_howto_table): Use it, to work around
bfd_perform_relocation lossage.
* elfcode.h (elf_new_section_hook): Do nothing for now.
(elf_write_object_contents): Output common symbols the way ELF
wants them.
Wed Jun 23 16:20:07 1993 Ken Raeburn (raeburn@poseidon.cygnus.com)
* libelf.h (struct elf_obj_tdata and associated macros): Moved
here from elfcode.h. A couple of size-specific structure pointers
were changed to PTR; uses fixed appropriately.
(elf32_symbol_type, elf64_symbol_type): Separated definitions.
(bfd_elf_mkobject): Renamed from bfd_elf32_mkobject.
(bfd_elf32_mkobject, bfd_elf64_mkobject, elf_mkobject): New
temporary macros to ease name change.
* elf.c (elf_read, elf_mkobject, elf_get_str_section,
elf_string_from_elf_section, bfd_elf_find_section): Moved here
from elfcode.h.
* doc/Makefile.in (libbfd.h): Process elf.c too.
* Makefile.in (elf.o): Note new dependencies.
* elfcode.h: Lots of stuff moved elsewhere. Deleted some unused
code, tweaked some debug hooks.
(elf_slurp_reloca_table): Translate ELF section symbols into BFD
section symbols.
