(struct elf_backend_data): Add can_refcount.
* elf.c (_bfd_elf_link_hash_newfunc): Get rid of a few casts. Set
got.refcount and plt.refcount from init_refcount.
(_bfd_elf_link_hash_table_init): Set up init_refcount.
(_bfd_elf_link_hash_copy_indirect): Reference got/plt.refcount
rather than got/plt.offset, and test for <= 0 rather than -1.
* elflink.h (size_dynamic_sections): Set init_refcount to -1.
* elfxx-target.h (elf_backend_can_refcount): Define.
(elfNN_bed): Init can_refcount.
* linker.c (_bfd_link_hash_newfunc): Get rid of a few casts.
(_bfd_generic_link_hash_newfunc): Likewise.
* elf32-cris.c (cris_elf_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
* elf32-hppa.c (elf32_hppa_check_relocs): Modify for refcounts
starting from zero.
(elf32_hppa_copy_indirect_symbol): Make static to agree with
prototype.
(elf_backend_can_refcount): Define.
* elf32-i386.c (elf_i386_check_relocs): Modify for refcounts
starting from zero.
(allocate_dynrelocs): Set plt/got.offset rather than *.refcount.
(elf_i386_finish_dynamic_symbol): Expand SHN_UNDEF comment.
(elf_i386_finish_dynamic_sections): Use local var so line < 80 chars.
(elf_backend_can_refcount): Define.
(elf_i386_copy_indirect_symbol): Make static to agree with
prototype. Formatting fix.
* elf32-m68k.c (elf_m68k_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
* elf32-ppc.c (ppc_elf_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
* elf32-s390.c (elf_s390_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
* elf64-s390.c (elf_s390_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
* elf64-x86-64.c (elf64_x86_64_check_relocs): Modify for refcounts
starting from zero.
(elf_backend_can_refcount): Define.
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
last.
(elf_link_sort_relocs): Adjust accordingly.
* elf64-alpha.c (struct alpha_elf_link_hash_entry): Add reltext flag.
(elf64_alpha_check_relocs): Set it if section this reloc is against
is read-only. Set DF_TEXTREL if a RELATIVE reloc is needed against
read-only section.
(elf64_alpha_calc_dynrel_sizes): Set DF_TEXTREL flag if relocation
is is against read-only section.
(elf64_alpha_size_dynamic_sections): Use DF_TEXTREL flag, don't
check section names.
(elf64_alpha_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
(struct elf_backend_data): Add elf_backend_reloc_type_class.
(_bfd_elf_reloc_type_class): New.
* elfxx-target.h (elf_backend_reloc_type_class): Define.
(elfNN_bed): Add elf_backend_reloc_type_class.
* elf.c (_bfd_elf_reloc_type_class): New.
* elf32-i386.c (elf_i386_check_relocs): Set DF_TEXTREL if the reloc
is against read-only section.
(elf_i386_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(elf_i386_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elf32-sparc.c (elf32_sparc_check_relocs): Set DF_TEXTREL if the
reloc is against read-only section.
(elf32_sparc_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(elf32_sparc_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elf64-sparc.c (sparc64_elf_check_relocs): Set DF_TEXTREL if the
reloc is against read-only section.
(sparc64_elf_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(sparc64_elf_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elfxx-ia64.c (struct elfNN_ia64_link_hash_table): Add reltext field.
(elfNN_ia64_hash_table_create): Clear ia64_info.
(get_reloc_section): Set DF_TEXTREL if the reloc is against read-only
section.
(elfNN_ia64_size_dynamic_sections): Use ia64_info->reltext flag
instead of looking up section names for DT_TEXTREL.
(elfNN_ia64_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elflink.h (size_dynamic_sections): Add spare DT_NULL tags.
(struct elf_link_sort_rela): New.
(elf_link_sort_cmp1, elf_link_sort_cmp2, elf_link_sort_relocs): New.
(elf_bfd_final_link): Call elf_link_sort_relocs.
Convert one spare DT_NULL into DT_RELCOUNT resp. DT_RELACOUNT if
necessary.
* bfdlink.h (struct bfd_link_info): Add combreloc and
spare_dynamic_tags fields.
* emultempl/elf32.em (place_orphan): Place orphan .rel* sections
into .rel.dyn resp. .rela.dyn if combreloc.
(get_script): If .x linker script is equal to .xn, only put it
once into the binary.
Add .xc and .xsc scripts.
(parse_args): Handle -z combreloc and -z nocombreloc.
* scripttempl/elf.sc (.rela.sbss): Fix a typo.
For .xc and .xsc scripts put all .rel* or .rela* input sections
but .rel*.plt and PLT-like sections into .rel.dyn resp. .rela.dyn.
* genscripts.sh (GENERATE_COMBRELOC_SCRIPT): Set if SCRIPT_NAME
is elf.
Strip trailing whitespace from script.
Generate .xc and .xsc scripts if requested.
* ldmain.c (main): Initialize link_info.combreloc and
link_info.spare_dynamic_tags.
* lexsup.c (OPTION_SPARE_DYNAMIC_TAGS): Define.
(ld_options): Add --spare-dynamic-tags option.
(parse_args): Likewise.
* ld.texinfo: Document -z combreloc and -z nocombreloc.
* ldint.texinfo: Document .xc and .xsc linker scripts.
* NEWS: Add notes about -z combreloc and SHF_MERGE.
elf_backend_emit_relocs: New field: Function for emitting
relocs.
elf_backend_count_relocs: New field: Function for determining
the number of relocs to be emitted.
* elfxx-target.h: Provide default (NULL) values for
elf_backend_emit_relocs and elf_backend_count_relocs.
* elflink.h (elf_link_size_reloc_section): Make the hash table
big enough to hold the relocs counted by either reloc_count or
o->reloc_count.
(elf_bfd_final_link) emit_relocs: New boolean, set if relocs
should be emitted, either because of a command line option
stored in the info structure or because the target provides a
special reloc emitting function.
If the target provides a reloc counting function use it,
unless performing a relocatable link or emitting all relocs.
Also set the SEC_RELOC flag on any output section which will
contain relocs.
(elf_link_input_bfd): emit_relocs: New boolean, set if relocs
should be emitted, either because of a command line option
stored in the info structure or because the target provides a
special reloc emitting function.
If the target provides a reloc emitting function, use it,
unless performing a relocatable link or emitting all relocs.
export_dynamic. All users changed to use info member.
NAME(bfd_elf,size_dynamic_sections)): Remove parameter
export_dynamic, instead use member in parameter info.
* bfd-in.h (bfd_elf32_size_dynamic_sections,
bfd_elf64_size_dynamic_sections): Update prototype.
* bfd-in2.h: Regenerate.
* elflink.h (elf_info_failed): Add a new field, verdefs.
(NAME(bfd_elf,size_dynamic_sections): Pass verdefs to
elf_export_symbol.
(elf_export_symbol): Check eif->verdefs to decide if a symbol
should be exported.
* elflink.h (elf_link_add_object_symbols): Fix a typo. Allocate
versymhdr->sh_size bytes for extversym instead of hdr->sh_size.
Remove the unused veriable `dynver'.
* elfcode.h: Include "libiberty.h".
* elflink.h (elf_link_add_object_symbols): Set
elf_dt_name (abfd) to basename of the bfd filename.
(NAME(bfd_elf,size_dynamic_sections)): Set vn_file to basename
of the bfd filename.
* elf.c (_bfd_elf_link_hash_hide_symbol): Set dynindx to -1
only for ELF_LINK_FORCED_LOCAL.
* elf32-hppa.c (elf32_hppa_hide_symbol): Likewise.
* elf32-mips.c (_bfd_mips_elf_hide_symbol): Likewise.
* elfxx-ia64.c (elfNN_ia64_hash_hide_symbol): Likewise.
* elflink.h (elf_fix_symbol_flags): Set ELF_LINK_FORCED_LOCAL
if the symbol has hidden or internal visibility.
* elf-bfd.h (elf_link_hash_table): Add runpath.
* bfd-in.h (bfd_elf_get_runpath_list): New prototype.
* bfd-in2.h: Rebuilt.
* elf.c (_bfd_elf_link_hash_table_init): Initialize the
"runpath" field to NULL.
(bfd_elf_get_runpath_list): New function.
* elflink.h (elf_link_add_object_symbols): Record DT_RPATH and
DT_RUNPATH entries.
* elflink.h (elf_merge_symbol): Take one more argument,
dt_needed, to indicate if the symbol comes from a DT_NEEDED
entry. Don't overide the existing weak definition if dt_needed
is true.
(elf_link_add_object_symbols): Pass dt_needed to
elf_merge_symbol ().
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): Don't check
info->new_dtags when setting DT_FLAGS_1. It will only be set
by the new linker options. It shouldn't break anything.
* elf32-arm.h (elf32_arm_size_dynamic_sections): Also set
DF_TEXTREL if DT_TEXTREL is set.
* elf32-i370.c (i370_elf_size_dynamic_sections): Likewise.
* elf32-i386.c (elf_i386_size_dynamic_sections): Likewise.
* elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise.
* elf32-mips.c (_bfd_mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_size_dynamic_sections): Likewise.
* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise.
* elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise.
* elf64-ia64.c (elf64_ia64_size_dynamic_sections): Likewise.
* elf64-sparc.c (sparc64_elf_size_dynamic_sections): Likewise.
* bfd/elflink.h (NAME(bfd_elf,size_dynamic_sections)): Also
set DF_SYMBOLIC for symbolic link. Also set DT_RUNPATH if
DT_RPATH is set.
Set the DT_FLAGS and DT_FLAGS_1 entries if necessary.
* bfd-in.h (bfd_elf_set_dt_needed_soname): New.
* bfd-in2.h: Rebuild.
* elf-bfd.h (elf_obj_tdata): Add dt_soname.
(elf_dt_soname): New.
* elf.c (bfd_elf_set_dt_needed_soname): New.
* elflink.h (elf_link_add_object_symbols): Add the DT_NEEDED
entry if the shared object loaded by DT_NEEDED is used to
resolve the reference in a regular object.
* elflink.h (elf_link_adjust_relocs): Check for and call backend
specifific swap_reloc_{in,out} and swap_reloca_{in,out} if
available.
(elf_link_output_relocs): Likewise.
(elf_reloc_link_order): Likewise.
* elflink.h (elf_fix_symbol_flags): Follow the link for the
indirect symbol for the ELF_LINK_NON_ELF bit.
(elf_link_output_extsym): Don't output the indirect symbol even
if the ELF_LINK_NON_ELF bit is set.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Clear the
visibility bits if the symbol is undefined. Correctly handle
weak undefined symbols with hidden and internal attributes.
* elflink.h (elf_link_add_object_symbols): Always turn the
symbol into local if it has the hidden or internal attribute.
* elflink.h (elf_link_add_object_symbols): Reset dynindx for
hidden and internal symbols.
(elf_fix_symbol_flags): Clear NEEDS_PLT for symbols with
visibility.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Do not
assign a PLT or GOT entry to symbols with hidden and
internal visibility.
* elflink.h (elf_bfd_final_link): Call output_extsym for global
symbols converted to local symbols even when stripping all
symbols.
(elf_link_output_extsym): Process global symbols converted to
local symbols even if they are being stripped.
hide_symbol members.
(elf_link_hash_copy_indirect): New.
(elf_link_hash_hide_symbol): New.
* elflink.h (elf_link_add_object_symbols): Break out copy from
indirect new new symbol to elf.c.
(elf_link_assign_sym_version): Break out privatization of
non-exported symbol to elf.c.
* elf.c (_bfd_elf_link_hash_copy_indirect): New.
(_bfd_elf_link_hash_hide_symbol): New.
(_bfd_elf_link_hash_table_init): Init copy_indirect and hide_symbol.
If it passed as non-NULL, use it to check whether any input BFD
has an input section which uses this output section. Change all
callers.
* bfd-in2.h: Rebuild.
* bfd-in.h: Move declarations of bfd_get_elf_phdr_upper_bound and
bfd_get_elf_phdrs in from bfd-in2.h, correcting patch of
1999-11-29.
* bfd-in2.h: Rebuild.
Change LD for ELF so that archive elements whoes archive map contains a
reference to a common symbol will get linkled in.
Add new field to bfd_target structure and initialise it for all bfd targets.
* elflink.h (elf_adjust_dynamic_symbol): Copy REF_REGULAR_NONWEAK
and NON_GOT_REF from weak defined symbol to real symbol.
* elf32-i386.c (elf_i386_check_relocs): Set NON_GOT_REF.
(elf_i386_adjust_dynamic_symbol): If NON_GOT_REF is not set, don't
create a COPY reloc.
* elf32-sparc.c (elf32_sparc_check_relocs): Set NON_GOT_REF.
(elf32_sparc_adjust_dynamic_symbol): If NON_GOT_REF is not set,
don't create a COPY reloc.
for special section symbols.
* elflink.h (elf_merge_symbol): If we have no old BFD, check
BSF_DYNAMIC on the section symbol to see whether the old BFD is
dynamic.
elf-section data to allocate just the right amount of relocation
space. Don't allocate the hash space twice.
(elf_bfd_final_link): Calculate the amount of space to allocate in
each relocation section.
* elflink.h (elf_bfd_final_link): Copy the whole isym, not just
some fields.
* elf64-sparc.c (sparc64_elf_output_arch_syms): Declare used
variables and initialize them.
* elf-bfd.h (struct elf_backend_data): Add
print_symbol_all and output_arch_syms backend methods.
* elfxx-target.h: Likewise.
* elf64-sparc.c (sparc64_elf_bfd_link_hash_table_create,
sparc64_elf_add_symbol_hook, sparc64_elf_output_arch_syms,
sparc64_elf_get_symbol_type, sparc64_elf_symbol_processing): New
functions.
(sparc64_elf_size_dynamic_sections): Leave space for STT_REGISTER
symbols in .dynsym, add their names into .dynstr. Put those symbols
into dynlocal.
(sparc64_elf_finish_dynamic_sections): Fix up DT_SPARC_REGISTER
pointers to STT_REGISTER symbols in dynsym section.
(sparc64_elf_print_symbol_all): New function.
* elf.c (bfd_elf_print_symbol): Allow special backend symbol
printing using the print_symbol_all hook.
(elf_bfd_final_link): Use it.
(elf_link_input_bfd): Deal with the fact that there can be
two relocation sections for a single section.
(elf_reloc_link_order): Likewise.
* elf32-mips.c (_bfd_mips_elf_final_link): Don't set GP for
a relocateable object.
(_bfd_mips_elf_relocate_section): Handle relocateable links.
as appropriate. Fill in structure initializations. Add variable
initializations. Add casts.
* dwarf1.c (parse_line_table): Change eachLine to unsigned long.
(dwarf1_unit_find_nearest_line): Change i to unsigned long.
field equals the new rel_count field.
(elf_link_input_bfd): When doing a relocateable link, use the new
rel_count field rather than the reloc_count field.
(elf_reloc_link_order): Likewise.
(elf_finish_pointer_linker_section): Likewise.
Based on patch from H.J. Lu <hjl@gnu.org>:
* elflink.h (elf_merge_symbol): Permit a non-weak definition in a
shared library to override a weak definition in a regular object.
fields.
(_bfd_elf_init_reloc_shdr): New function.
* elf.c (_bfd_elf_new_section_hook): Use bfd_zalloc, rather than
bfd_alloc followed by memset.
(_bfd_elf_init_reloc_shdr): New function, split out from ...
(elf_fake_sections): Here.
(assign_section_numbers): Assign section numbers for the second
relocation section, if required.
* elflink.h (elf_link_output_relocs): New function.
(elf_link_size_reloc_section): Likewise.
(elf_bfd_final_link): Use elf_link_size_reloc_section.
(elf_link_input_bfd): Use elf_link_output_relocs.
* elf32-mips.c (_bfd_mips_elf_fake_sections): Use
_bfd_elf_init_reloc_shdr to initialize rel_hdr2.
* elflink.c (_bfd_elf_link_adjust_dynindx): Define it.
* elflink.h (elf_link_remove_section_and_adjust_dynindices): New
function.
(bfd_elf_size_dynamic_sections): Use it.
Alan Modra
Nick Clifton
Jakub Jelinek
Catherine Moore
Hans-Peter Nilsson
H.J. Lu
Kazu Hirata
Ulf Carlsson
Ian Lance Taylor
Richard Henderson
Andreas Schwab
Jeff Law
Mark Mitchell