argument, and use it to set DT_SONAME dynamic entry.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update prototype.
(bfd_elf64_size_dynamic_sections): Update prototype.
* bfd-in2.h: Rebuilt.
* elfcode.h (elf_link_create_dynamic_sections): Set type of
_DYNAMIC to STT_OBJECT.
(NAME(bfd_elf,record_link_assignment)): Always create hash table
entry. Set type to STT_OBJECT.
(elf_link_output_extsym): Don't set type of weak defined symbol to
STB_WEAK if symbol was referenced.
* elf32-i386.c (elf_i386_create_dynamic_sections): Set type of
_GLOBAL_OFFSET_TABLE to STT_OBJECT.
(elf_i386_check_relocs): Ignore local PLT32 relocs.
(elf_i386_relocate_section): Treat local PLT32 relocs as PC32.
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.
argument. If it is not NULL, use it to set DT_RPATH.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update prototype.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuilt.
* 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.
hpux-core.c, irix-core.c, lynx-core.c, osf-core.c, ptrace-core.c,
rs6000-core.c, trad-core.c: Remove SEC_ALLOC flag from .reg
sections, .reg sections are not allocated and contain debug
information only.
* osf-core.c (make_bfd_asection, osf_core_core_file_p): Use
bfd_make_section_anyway instead of building unique section names.
Youngdale <ericy@cais.cais.com>.
* elfcode.h (prep_headers): If DYNAMIC, set e_type to ET_DYN.
(elf_link_add_object_symbols): If generating a shared library,
create dynamic sections for first input BFD with the right format.
(elf_link_create_dynamic_sections): Don't create .interp section
if creating a shared library.
(elf_link_input_bfd): Skip dynamic sections in input file.
(elf_bfd_final_link): If creating a shared library, it's OK for
dynobj to have sections which are not SEC_IN_MEMORY.
* elf32-i386.c (elf_i386_size_dynamic_sections): Only set .interp
section if not creating a shared library.
* elf32-sparc.c (elf_sparc_size_dynamic_sections): Likewise.
(bfd_abs_section_ptr, bfd_is_abs_section): Define.
(bfd_und_section): Make const.
(bfd_und_section_ptr, bfd_is_und_section): Define.
(bfd_com_section): Make const.
(bfd_com_section_ptr): Define.
(bfd_ind_section): Make const.
(bfd_ind_section_ptr, bfd_is_ind_section): Define.
(bfd_abs_symbol, bfd_com_symbol): Make const.
(bfd_und_symbol, bfd_ind_symbol): Likewise.
(global_syms): Cast initialization of section field.
(STD_SECTION): Define as const, and cast initializations.
* bfd-in2.h: Rebuilt.
* Many files: Change uses of bfd_abs_section, etc., to use
bfd_abs_section_ptr or bfd_is_abs_section, etc.
when computing reloc sizes. From Eric Youngdale
<ericy@cais.cais.com>.
* elfcode.h (elf_bfd_final_link): Don't try to compute maximum
reloc count or size for a non-ELF file.
(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.
argument, and set it to the .interp section.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update prototype.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuilt.
into a BFD section just because SHF_ALLOC is set; require that it
not use the normal symbol table.
(elf_section_from_bfd_section): Corresponding change.
files.
* elfcode.h (elf_fake_sections): Add prototype.
(bfd_section_from_shdr): Make a BFD section from an SHT_HASH
section, and from an SHT_DYNSYM section, and from the dynamic
string table section.
(elf_object_p): Set D_PAGED if there is a program header.
(elf_make_sections): Remove.
(fix_up_strtabs): Remove.
(elf_fake_sections): Rewrite. Now sets sh_entsize.
(assign_section_numbers): Rewrite. Now sets sh_link and sh_info
for all sections.
(elf_compute_section_file_positions): Don't call obsolete
functions elf_make_sections or fix_up_strtabs.
(swap_out_syms): Set sh_addralign to FILE_ALIGN rather than 4.
(NAME(bfd_elf,write_object_contents)): Permit writing DYNAMIC
objects.
(elf_section_from_bfd_section): Treat SHT_DYNSYM like other normal
sections. If an SHT_REL or SHT_RELA section is allocated or uses
an unusual symbol table, permit a BFD section to map to it.
Permit most SHT_STRTAB sections to have a BFD section mapped to
them.
(elf_bfd_final_link): Don't set sh_link, sh_info or sh_entsize
fields of dynamic sections here; do it in assign_section_numbers.
* elf32-target.h, elf64-target.h: Add D_PAGED to permitted object
flags.
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.
* elf32-hppa.c: Change .hppa_linker_stubs to .PARISC.stubs,
likewise for other PA specific sections.
(hppa_elf_relocate_unwind_table): Delete unused
function.
(elf_hppa_howto_table): Completely new table based on 94-02-02
draft PA ELF spec. Change relocation tags appropriately
throughout elf32-hppa.c
(hppa_elf_gen_reloc_type): Rewrite and simplify based on 94-02-02
spec.
(hppa_elf_reloc): Likewise.
(hppa_look_for_stubs_in_section): Likewise
(ELF_MACHINE_CODE): Change to EM_PARISC.
* elf32-hppa.h: Include "elf/hppa.h". Change relocation tags
appropriately throughout elf32-hppa.h.
(elf32_hppa_reloc_type): New table based on 94-02-02 draft PA ELF
spec.
(R_HPPA_ABS_CALL, R_HPPA_COMPLEX*, R_HPPA_UNWIND): Delete definitions.
* elfcode.h (prep_headers): Use EM_PARISC instead of EM_HPPA.
* reloc.c (bfd_reloc_code_real): Delete unused HPPA relocations.
* som.h (R_HPPA_ABS_CALL, R_HPPA_COMPLEX): Delete definitions.
* libhppa.h (hppa_field_adjust): Avoid adding constant_value into
the final value twice for LR and RR field selectors.
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.
to create sections. Check return value of recursive calls.
(bfd_section_from_phdr): Check return value of bfd_make_section.
(elf_symbol_from_bfd_symbol): Likewise.
(elf_object_p): Check return value of bfd_section_from_shdr.
(section_from_elf_index): Likewise.
(elf_slurp_symbol_table): Check return value of
section_from_elf_index.
(bfd_prstatus): Return boolean value. Check return value of
bfd_make_section.
(bfd_fpregset): Likewise.
(bfd_prpsinfo): Return boolean value.
(elf_corefile_note): Check return values of bfd_prstatus,
bfd_fpregset, and bfd_prpsinfo.
(elf_core_file_p): Check return value of elf_corefile_note.
bfd_default_set_arch_mach. Accept bfd_arch_m68k as well as
bfd_arch_unknown.
* elfcode.h (elf_set_arch_mach): Don't check a list of ELF
architectures, just see if the desired architecture matches what
the ELF backend permits.
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.
section->relocation is NULL; malloc might have returned NULL when
given a zero size if there were no relocations.
* bout.c (b_out_canonicalize_reloc): Likewise.
* coffcode.h (coff_canonicalize_reloc): Likewise.
* ecoff.c (ecoff_canonicalize_reloc): Likewise.
* elfcode.h (elf_canonicalize_reloc): Likewise.
* mipsbsd.c (MY(canonicalize_reloc)): Likewise.
* i386lynx.c (NAME(lynx,canonicalize_reloc)): Likewise.
* nlmcode.h (nlm_canonicalize_reloc): Likewise.
* som.c (som_canonicalize_reloc): Likewise.
* hp300hpux.c (MY(slurp_reloc_table)): Likewise. Also, if malloc
returns NULL, don't report an error if we asked for zero bytes.
* i386lynx.c (NAME(lynx,slurp_reloc_table)): If malloc returns
NULL, don't report an error if we asked for zero bytes.
* nlmcode.h (nlm_slurp_reloc_fixups): Likewise.
read. (bfd_error_system_call or bfd_error_file_truncated).
* som.c: Do not blindly set bfd_error_system_call after a
failing bfd_read, bfd_write, or bfd_seek. In a few places
(like som_object_p) override the error status set by bfd_read.
* aix386-core.c, aout-encap,c archive.c, bout.c: Likewise.
* coff-rs6000.c, coffgen.c ecoff.c, elf.c: Likewise.
* elf32-hppa.c, elfcode.h, hp300hpux.c, i386lynx.c: Likewise.
* nlm32-alpha.c, nlm32-i386.c, nlm32-sparc.c: Likewise.
* som.c: Check return values from several bfd_{seek,read,write}
calls that we just assumed were not failing.
cruft (like the #pragma alloca for AIX).
In addition to that problem, the C alloca calls xmalloc, which
means checking for being out of memory can't work right. The
following changes remove all uses of alloca from BFD.
* hosts/solaris2.h: Remove alloca cruft.
* som.c: Replace alloca with a fixed size auto array.
* aoutx.h, elfcode.h, nlmcode.h, bout.c, coff-alpha.c, ecoff.c,
ecofflink.c, elf32-hppa.c, elf32-mips.c, linker.c, reloc.c, som.c:
Replace alloca with malloc and appropriate error checking and
freeing.
* linker.c: Replace alloca with obstack_alloc.
* libbfd.h: Rebuilt.
* ecoff.c, ecofflink.c, ecoffswap.h, srec.c: Likewise.
* elf32-i386.c: Likewise.
* elfcode.h (bfd_section_from_shdr): Make i unsigned; remove old
#if 0 code.
(elf_write_phdrs): Make i unsigned.
(map_program_segments): Make i and n_left unsigned.
(assign_file_positions_except_relocs): Make i unsigned.
(write_shdrs_and_ehdr): Make count unsigned.
(assign_file_positions_for_relocs): Make i unsigned.
(NAME(bfd,elf_write_object_contents)): Make count unsigned.
(section_from_elf_index): Make index argument unsigned.
Support for PowerPC NetWare.
* config.bfd (powerpc-*-netware*): New target; use ppc-nlm.
* config/ppc-nlm.mt: New file.
* configure.in (nlm32_powerpc_vec): New target vector; use
nlm32-powerpc.o, nlm32.o, nlm.o.
* targets.c (nlm32_powerpc_vec): Declare.
* Makefile.in (BFD32_BACKENDS): Add nlm32-powerpc.o.
(CFILES): Should add nlm32-powerpc.c, but didn't, because the
dependencies can't be sanitized.
end-sanitize-powerpc-netware
Initial support for PowerPC ELF. Done without an ABI, and
probably to be changed when I get an ABI.
* config.bfd (powerpc-*-sysv4*): New target; use ppc-elf.
* config/ppc-elf.mt: New file.
* configure.in (bfd_elf32_powerpc_vec): New target vector; use
elf32-powerpc.o, elf32.o, elf.o.
* elf32-powerpc.c: New file.
* elfcode.h (prep_headers): Add bfd_arch_powerpc case.
(elf_set_arch_mach): Likewise.
* targets.c (bfd_elf32_powerpc_vec): Declare.
* Makefile.in (BFD32_BACKENDS): Add elf32-powerpc.o.
(CFILES): Add elf32-powerpc.c.
Rebuilt dependencies.
the DYNAMIC flag for the BFD.
(NAME(bfd_elf,write_object_contents)): Don't try to write out a
BFD with the DYNAMIC flag set, since we don't generate the program
header table correctly.
section has no ELF section data.
(elf_make_sections): Set addralign of reloc section to 4.
(elf_fake_sections): Likewise.
(map_program_segments): Don't consider section 0.
(assign_file_positions_except_relocs): Don't consider section 0.
In the main loop, skip the symtab and strtab sections, since their
positions are set elsewhere.
(swap_out_syms): Set addralign of symtab section to 4. Set
addralign of strtab sections to 1.
(assign_file_positions_for_relocs): Don't consider section 0.
(write_object_contents): Don't write out section 0.
(sym_is_global): Take abfd argument. Call
elf_backend_sym_is_global if it is not NULL.
(elf_map_symbols): Pass abfd to sym_is_global.
(write_object_contents): Call elf_backend_final_write_processing
if it is defined.
(align_file_position): New function.
(elf_locate_sh): Disabled function deleted.
(assign_file_positions_for_symtab_and_strtabs): Align position, then place
symtab, then do other sections.
(map_program_segments): Align program header.
(assign_file_positions_except_relocs): Align section headers.
(assign_file_positions_for_relocs): Align relocation sections.
Fixes ld/3584.
* elfcode.h (bfd_section_from_shdr): If section is SHT_PROGBITS,
and the name starts with .debug, .line or .stab, set
SEC_DEBUGGING.
* elf32-target.h (TARGET_BIG_SYM, TARGET_LITTLE_SYM): Added
SEC_DEBUGGING to section_flags.
* elf64-target.h (TARGET_BIG_SYM, TARGET_LITTLE_SYM): Added
SEC_DEBUGGING and SEC_CODE to section_flags.
* bfd-in2.h: Updated.
SHF_PROGBITS or SHT_STRTAB section if SEC_ALLOC is set. Never set
SEC_DATA for a SHF_NOBITS section.
* nlm32-i386.c (nlm_i386_mangle_relocs): Check SEC_LOAD rather
than SEC_CODE | SEC_DATA. Add some casts to avoid warnings.
* nlmcode.h: Add some casts to avoid warnings.
(nlm_write_object_contents): Ignore relocs for sections that are
neither code nor data. Just use the symbol value for debugging
symbols; don't offset by the section vma.
sections, not just allocated sections; debugging sections can have
relocs.
(elf_symbol_from_bfd_symbol): If there is an output section, use
the section index from that rather than the input section.
(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.
* elfcode.h (elf_write_object_contents): Don't drop core if
elf_symbol_from returns a NULL pointer when processing a non-elf
symbol, use a 0 size instead.
Tue Jun 15 14:38:32 1993 Michael Meissner (meissner@osf.org)
* elfcode.h (elf_hash): Delete macro mapping elf_hash to
bfd_elf32_hash, since the hash table is independent of the 32/64
bit system.
(elf_write_phdrs): Use precomputed e_phoff rather than making assumptions.
(elf_build_phdrs): Disabled, for now.
(assign_file_position_for_section): Don't change file offset for SHT_NOBITS.
(assign_file_positions_for_symtab_and_strtabs): New function.
(struct seg_info): New type.
(map_program_segments): New function.
(assign_file_positions_except_relocs): For executables, leave section headers
&c for last, and properly align all sections with flag SHF_ALLOC set.
(prep_headers): No longer abort when EXEC_P is set.
(write_shdrs_and_ehdr): Deleted all code relating to program segments.
(various): Deleted some unused code, and debugging "malloc(0)" calls.
(write_relocs): Cache value of last symbol looked up, to save
time if the symbol is referred to repeatedly.
(elf_fake_sections): Check only SEC_RELOC flag, not number of relocs.
(assign_section_numbers): Likewise.
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.
* trad-core.c: Don't include <sys/file.h>.
* i386linux.h: Include <sys/file.h>.
* coff-m68k-un.c: new file to handle names with underscores on
svr3 machines.
* coff-m68k.c (m68k_rtype2howto): added #ifdef ONLY_DECLARE_RELOCS
to not duplicate the function in the executable.
(TARGET_SYM, TARGET_NAME, NAMES_HAVE_UNDERSCORE): new macros needed
by coff-m68k-un.c.
* coffcode.h (MC68KBCSMAGIC): case added.
* targets.c: Add m68kcoffun_vec.
* configure.host: added support for Bull dpx/2.
* config/dpx2.mh, hosts/dpx2.h: new files.
* Makefile.in: added target coff-m68k-un.
(elf_map_symbols): Write out section symbols for all sections, for now.
(elf_symbol_from_bfd_symbol): Allow match if both symbols are section symbols
for the same section.
(elf_find_nearest_line): Don't print message, just return false.
(bfd_section_from_shdr, case SHT_PROGBITS): If section already exists, still
use its address to fill in the rawdata slot.
(section_from_elf_index): Abort if section pointer is null.
(put_word, get_word): Define as appropriate for architecture word size.
Structure swapping functions changed to use them as appropriate.
(bfd_add_to_strtab): Now static.
(sym_is_global): New function.
(elf_map_symbols): Call it. Now returns void. Removed unused local variable.
(bfd_section_from_shdr): Mark string tables other than for section and symbol
names as normal sections having contents.
(fix_up_strtabs): New function; fixes up ELF header fields for stab sections
with string tables associated.
(elf_write_object_contents): Map fix_up_strtabs over all BFD sections.
Reordered condition tests for symbol flags; default to local-object value
instead of global-object.
(elf_symbol_from_bfd_symbol): Hid conditionally-used variable inside condition
test.
(elf_print_symbol): Use fprintf_vma.
(elf_idx_of_sym, bfd_shdr_from_section): Unused functions commented out.
(sym_is_global): New function.
(bfd_section_from_shdr): Makr stirng tables other than for section and symbol
names as normal sections having contents.
(fix_up_strtabs): New function; fixes up ELF header fields for stab sections
with string tables associated.
(elf_write_object_contents): Map fix_up_strtabs over all BFD sections.
Reordered condition tests for symbol flags; default to local-object value
instead of global-object.
* elfcode.h (new_section_hook): Define here.
elf32-{mips,m88k,generic}.c: New files.
targets.c (target_vector): Include bfd_elf32_{mips,m88k,generic}_vec.
elfcode.h (elf_object_p): Match elf32-generic for all machines which
don't match a different target.
Ken Raeburn
Ian Lance Taylor
Jean Marie Diaz
Peter Schauer
Jeff Law
Jim Kingdon
David MacKenzie
Fred Fish