(ppc64_elf_check_relocs): Don't set up function descriptor symbol
strings to point inside function code sym string.
(func_desc_adjust): Likewise.
(ppc64_elf_hide_symbol): Rewrite code to look up function code sym.
reloading local sym addend mistakenly removed in 2002-05-01 change.
* dwarf2.c (struct line_head): Make prologue_length a bfd_vma.
(read_abbrevs): Change "offset" param to bfd_vma.
(parse_comp_unit): Change "version" and addr_size to unsigned ints.
Change "abbrev_offset" to bfd_vma.
(read_indirect_string): Use correct conversion chars in error
message format string, cast bfd_vma's to unsigned long.
(read_abbrevs): Likewise.
(read_attribute_value): Likewise.
(decode_line_info): Likewise.
(scan_unit_for_functions): Likewise.
(parse_comp_unit): Likewise.
16 bit reloc.
<R_PPC64_SECTOFF_DS>: Likewise.
(ppc64_elf_reloc_type_lookup): Map from BFD_RELOC_16_BASEREL to
SECTOFF reloc.
* elf32-ppc.c (ppc_elf_howto_raw <R_PPC_SECTOFF>): Correct.
(ppc_elf_reloc_type_lookup): Map from BFD_RELOC_16_BASEREL to
SECTOFF reloc.
(ppc64_elf_ha_reloc): New function.
(ppc64_elf_brtaken_reloc): New function.
(ppc64_elf_sectoff_reloc): New function.
(ppc64_elf_sectoff_ha_reloc): New function.
(ppc64_elf_toc_reloc): New function.
(ppc64_elf_toc_ha_reloc): New function.
(ppc64_elf_toc64_reloc): New function.
(ppc64_elf_unhandled_reloc): New function.
(ppc64_elf_howto_raw): Use the above.
<R_PPC64_RELATIVE>: Mark pc_relative, pcrel_offset.
<R_PPC64_SECTOFF>: Not pc_relative or pcrel_offset. Fix dst_mask.
<R_PPC64_SECTOFF_DS>: Likewise.
(IS_ABSOLUTE_RELOC): Update.
(struct ppc_link_hash_table): Add have_undefweak.
(ppc64_elf_link_hash_table_create): Init.
(func_desc_adjust): Set have_undefweak.
(ppc64_elf_func_desc_adjust): Call func_desc_adjust earlier. Only
add the .sfpr blr when have_undefweak.
(ppc64_elf_setup_section_lists): Check hash table flavour.
(ppc64_elf_next_input_section): Move output_section->owner test to
ppc64elf.em.
(ppc64_elf_set_toc): Rename to ppc64_elf_toc, remove info param
and relocatable test. Return TOCstart and don't set elf_gp.
(ppc64_elf_relocate_section): Correct BRTAKEN/BRNTAKEN branch
offset calculation. Add assert on weak sym branch tweaks.
* elf64-ppc.h (ppc64_elf_set_toc): Delete.
(ppc64_elf_toc): Declare.
(ppc64_elf_next_input_section): Update.
* emultempl/ppc64elf.em (gld${EMULATION_NAME}_after_allocation):
Adjust for ppc64_elf_set_toc change. #include libbfd.h.
(build_section_lists): Do output_section tests here.
(ppc64_elf_relocate_section): Use them. Don't look for plt calls
on R_PPC64_ADDR24 relocs. Require a nop or no link reg on plt
call branches. Correct undefined weak destination.
(ppc64_elf_func_desc_adjust): Always create at least one blr in
.sfpr, and correct case where either only savef* or restf* is
needed.
Long branch stubs, multiple stub sections.
* elf64-ppc.h (ppc64_elf_setup_section_lists): Declare.
(ppc64_elf_next_input_section): Declare.
* elf64-ppc.c: Move linker-only prototypes.
(STUB_SUFFIX): Define.
(enum ppc_stub_type): New.
(struct ppc_stub_hash_entry): New.
(struct ppc_branch_hash_entry): New.
(struct ppc_link_hash_entry): Add stub_cache, oh.
(struct ppc_link_hash_table): Add stub_hash_table etc. Remove
sstub. Add sbrlt, srelbrlt, has_14bit_branch, stub_iteration.
Rename plt_overflow to stub_error.
(ppc_stub_hash_lookup): Define.
(ppc_branch_hash_lookup): Define.
(stub_hash_newfunc): New function.
(branch_hash_newfunc): New function.
(link_hash_newfunc): Init new fields.
(ppc64_elf_link_hash_table_create): Likewise.
(ppc64_elf_link_hash_table_free): New function.
(ppc_stub_name): New function.
(ppc_get_stub_entry): New function.
(ppc_add_stub): New function.
(create_linkage_sections): Use bfd_make_section_anyway. Create
.branch_lt and .rela.branch_lt sections. Don't create .stub.
(ppc64_elf_check_relocs): Set has_14bit_branch on R_PPC64_REL14*,
and set up for plt call stubs. Link func and func desc syms.
(ppc64_elf_gc_sweep_hook): Handle REL14* as per REL24.
(func_desc_adjust): Avoid hash lookup when func desc sym available
via shortcut, and set links when processing.
(ppc64_elf_hide_symbol): Likewise.
(allocate_dynrelocs): Don't allocate stub section here.
(ppc64_elf_size_dynamic_sections): Handle sbrlt and srelbrlt.
Remove sstub code.
(ppc_type_of_stub): New function.
(build_one_stub): Delete.
(ppc_build_one_stub): New function.
(ppc_size_one_stub): New function.
(ppc64_elf_setup_section_lists): New function.
(ppc64_elf_next_input_section): New function.
(group_sections): New function.
(get_local_syms): New function.
(ppc64_elf_size_stubs): Rewrite.
(ppc64_elf_build_stubs): Rewrite.
(ppc64_elf_relocate_section): Look up stub entry for REL24
relocs. Don't propagate REL14* to dynamic objects. Look for long
branch stubs if REL14* or REL24 relocs won't reach.
(bfd_elf64_bfd_link_hash_table_free): Define.
(struct ppc_link_hash_table): Add sfpr.
(ppc64_elf_link_hash_table_create): Init it.
(ppc64_elf_create_dynamic_sections): Split creation of .stub and
.glink out to..
(create_linkage_sections): ..here. Make .sfpr too.
(ppc64_elf_check_relocs): Call create_linkage_sections, and set
dynobj early.
(MIN_SAVE_FPR, MAX_SAVE_FPR): Define.
(ppc64_elf_func_desc_adjust): Look for missing ._savef* and
._restf* functions, and create as needed.
(func_desc_adjust): Only force_local for shared libs.
* emulparams/elf64ppc.sh (OTHER_TEXT_SECTIONS): Define.
against section syms in readonly sections. Don't do the global
sym check if we find one.
* elf64-s390.c (elf_s390_size_dynamic_sections): Likewise.
* elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise.
* elf32-s390.c (elf_s390_size_dynamic_sections): Likewise.
(elf_s390_grok_prstatus): Add missing prototype.
(NO_OPD_RELOCS): Define.
(ppc64_elf_check_relocs): Use it.
(ppc64_elf_relocate_section): Here too.
(build_one_stub): Don't point function syms at the stub. Instead,
hijack plt.offset.
(ppc64_elf_relocate_section): Check whether REL24 relocs should
really go to the stub. Make all dynamic relocs in opd against
locals.
(ppc64_elf_finish_dynamic_symbol): Allow for non-standard use of
plt.offset.
is_func_descriptor fields.
(link_hash_newfunc): Init them.
(ppc64_elf_check_relocs): Only R_PPC24_REL24 syms starting with a
dot are candidates for plt entries. When processing .opd relocs,
set function descriptor strings to point inside function code
string, and set new ppc_link_hash_entry fields.
(ppc64_elf_gc_sweep_hook): Don't sweep R_PPC64_REL24 relocs.
(ppc64_elf_adjust_dynamic_symbol): Remove most code dealing with
function descriptors. It's now done in..
(func_desc_adjust): New.
(ppc64_elf_func_desc_adjust): New.
(define elf_backend_always_size_sections): Define.
(ppc64_elf_hide_symbol): New.
(define elf_backend_hide_symbol): Define.
(allocate_dynrelocs): Remove code looking up function descriptors
as that has been done earlier.
(ppc64_elf_size_dynamic_sections): Use htab shortcut to elf hash
table.
(ppc64_elf_finish_dynamic_symbol): Likewise. Remove code looking
up function descriptor.
(build_one_stub): Look up the function code sym. Check for
invalid plt offsets.
(ppc64_elf_relocate_section): Tweak calls to undefined weak syms.
Convert R_PPC64_TOC relocs to R_PPC64_RELATIVE in shared libs.
include/elf/ChangeLog
* external.h (Elf_External_Sym_Shndx): Declare.
* internal.h (struct elf_internal_sym <st_shndx>): Make it an
unsigned int.
* common.h (SHN_BAD): Define.
bfd/ChangeLog
* configure.in: Bump bfd version.
* configure: Regenerate.
* elf-bfd.h (elf_size_info <swap_symbol_out>): Add shndx param.
(bfd_elf32_swap_symbol_in): Likewise.
(bfd_elf32_swap_symbol_out): Likewise.
(bfd_elf64_swap_symbol_in): Likewise.
(bfd_elf64_swap_symbol_out): Likewise.
(elf_reloc_cookie): Add locsym_shndx field. Make locsyms a PTR.
(elf_obj_tdata): Add num_elf_sections, symtab_shndx_hdr and
symtab_shndx_section.
(elf_numsections): Define.
(elf_symtab_shndx): Define.
* elf.c (setup_group): Use elf_numsections rather than header e_shnum.
(bfd_elf_find_section): Likewise.
(bfd_section_from_elf_index): Likewise.
(bfd_section_from_shdr): Likewise. Handle SHT_SYMTAB_SHNDX.
(bfd_section_from_r_symndx): Read symbol shndx extension, and
translate st_shndx for > SHN_HIRESERVE.
(assign_section_numbers): Skip reserved sections. Assign
symtab_shndx_section and elf_numsections. Exclude reserved
sections from e_shnum. Set up symtab_shndx_hdr.
(_bfd_elf_compute_section_file_positions): Handle symtab_shndx_hdr.
(map_sections_to_segments): Don't map eh_frame_hdr unless required.
(assign_file_positions_except_relocs): Use elf_numsections rather
than header e_shnum. Skip reserved sections and symtab_shndx_section.
(prep_headers): Set name for symtab_shndx_hdr.
(_bfd_elf_assign_file_positions_for_relocs): Use elf_numsections.
(_bfd_elf_write_object_contents): Likewise. Skip reserved sections.
(_bfd_elf_section_from_bfd_section): Check bfd_{abs,com,und}_section
first. Use elf_section_data if available. Use elf_numsections.
Start scan at index 1.
(copy_private_bfd_data ): Comment fixes.
(MAP_ONESYMTAB): Define above SHN_HIOS.
(MAP_DYNSYMTAB): Likewise.
(MAP_STRTAB): Likewise.
(MAP_SHSTRTAB): Likewise.
(MAP_SYM_SHNDX): New define.
(_bfd_elf_copy_private_symbol_data): Handle symtab_shndx_section.
(swap_out_syms): Swap out SHT_SYMTAB_SHNDX section too.
* elfcode.h (elf_swap_symbol_in): Add shndx param, and handle shndx
extension.
(elf_swap_symbol_out): Likewise.
(elf_object_p): Set elf_numsections, and use instead of e_shnum.
Initialialise reserved elf_elfsections to point at shdr[0]. Remove
redundant bfd_release calls.
(elf_slurp_symbol_table): Read symbol shndx extension, and use with
elf_swap_symbol_in. Translate st_shndx for > SHN_HIRESERVE too.
* elflink.h (elf_link_is_defined_archive_symbol): Read symbol shndx
extension, and use with elf_swap_symbol_in.
(elf_link_record_local_dynamic_symbol): Likewise.
(elf_link_add_object_symbols): Likewise. Also translate st_shndx
for elf sections > SHN_HIRESERVE.
(NAME(bfd_elf,size_dynamic_sections)): Adjust elf_swap_symbol_out
call.
(struct elf_final_link_info): Add locsym_shndx and symshndxbuf.
(elf_bfd_final_link): Allocate the above, and tidy code allocating
other buffers. Use elf_numsections instead of e_shnum. Adjust
elf_swap_symbol_out calls.
(elf_link_output_sym): Swap out symbol shndx extension too.
(elf_link_flush_output_syms): And flush them to disk.
(elf_link_output_extsym): Use SHN_BAD. Adjust elf_swap_symbol_out
calls.
(elf_gc_mark): Read symbol shndx extension, and use with
elf_swap_symbol_in.
(elf_link_input_bfd): Likewise, Translate st_shndx for elf sections
> SHN_HIRESERVE too. Use SHN_BAD.
(elf_reloc_symbol_deleted_p): Use symbol shndx extensions with
elf_swap_symbol_in. Translate st_shndx > SHN_HIRESERVE too.
(elf_bfd_discard_info): Read symbol shndx extension. Don't attempt
to continue after a bfd error.
* elf-m10200.c (mn10200_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Translate SHN_UNDEF,
SHN_ABS, SHN_COMMON and elf sections > SHN_HIRESERVE to bfd
sections too. Remove dead code.
(mn10200_elf_relax_delete_bytes): Use symbol shndx extension
when swapping in symbols. Tidy code adjusting global syms.
Don't swap in global syms.
(mn10200_elf_symbol_address_p): Likewise. Remove extsyms param.
(mn10200_elf_get_relocated_section_contents): Read symbol shndx
extension, and use with swap_symbol_in. Rename "size" -> "amt"
to maximize code in common with other files. Translate st_shndx
for > SHN_HIRESERVE too. Remove dead code.
* elf-m10300.c (mn10300_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Remove dead code.
(mn10300_elf_relax_delete_bytes): As for elf-m10200.c.
(mn10300_elf_symbol_address_p): Likewise.
(mn10300_elf_get_relocated_section_contents): Likewise.
* elf32-h8300.c (elf32_h8_relax_section): As for elf-m10300.c.
(elf32_h8_relax_delete_bytes): Likewise.
(elf32_h8_symbol_address_p): Likewise.
(elf32_h8_get_relocated_section_contents): Likewise.
* elf32-hppa.c (elf32_hppa_size_stubs): Read symbol shndx
extension, and use with swap_symbol_in.
* elf64-hppa.c (elf64_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Adjust call to
bfd_elf32_swap_symbol_out.
* elf32-m32r.c (m32r_elf_get_relocated_section_contents): Translate
elf sections > SHN_HIRESERVE too.
* elf32-m68k.c (bfd_m68k_elf32_create_embedded_relocs): Only read
local syms. Read symbol shndx extension, and use with swap_symbol_in.
* elf32-mips.c (_bfd_mips_elf_final_write_processing): Use
elf_numsections rather than header e_shnum.
* elf32-sh.c (sh_elf_relax_section): As for elf-m10300.c.
(sh_elf_relax_delete_bytes): Likewise.
(sh_elf_get_relocated_section_contents): Likewise. Only read local
symbols.
* elf32-v850.c (v850_elf_symbol_processing): Use an unsigned int to
hold section index. Use elf_numsections rather than e_shnum.
Rename "index" -> "indx" to avoid shadowing warning.
(v850_elf_add_symbol_hook): Likewise.
* elf64-alpha.c (elf64_alpha_relax_section): Only read local syms.
Read symbol shndx extension, and use with swap_symbol_in.
* elf32-xstormy16.c (xstormy16_elf_relax_section): Likewise.
Translate SHN_COMMON and elf sections > SHN_HIRESERVE too.
* elfxx-ia64.c (elfNN_ia64_relax_section): Likewise.
(elfNN_ia64_aix_add_symbol_hook): Use elf_numsections.
* elf-m10300.c (mn10300_elf_gc_mark_hook): Remove unnecessary checks
before calling bfd_section_from_elf_index on local syms.
* elf32-arm.h (elf32_arm_gc_mark_hook): Likewise.
* elf32-avr.c (elf32_avr_gc_mark_hook): Likewise.
* elf32-cris.c (cris_elf_gc_mark_hook): Likewise.
* elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise.
* elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise.
* elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise.
* elf32-i386.c (elf_i386_gc_mark_hook): Likewise.
* elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise.
* elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise.
* elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise.
* elf32-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise.
* elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise.
* elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise.
* elf32-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf32-sh.c (sh_elf_gc_mark_hook): Likewise.
* elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise.
* elf32-v850.c (v850_elf_gc_mark_hook): Likewise.
* elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise.
* elf64-mips.c (mips_elf64_gc_mark_hook): Likewise.
* elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise.
* elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise.
* elf64-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise.
binutils/ChangeLog
* readelf.c (symtab_shndx_hdr): New global.
(SECTION_HEADER_INDEX): Define.
(SECTION_HEADER_NUM): Define.
(SECTION_HEADER): Define.
(GET_ELF_SYMBOLS): Pass two params rather than three.
(get_32bit_elf_symbols): Take file and section args. Read and
use SHT_SYMTAB_SHNDX.
(get_64bit_elf_symbols): Likewise.
(dump_relocations): Use SECTION_HEADER to index "section_headers".
(process_section_headers): Likewise. Use SECTION_HEADER_NUM too.
Remember symtab_shdx_hdr.
(process_program_headers): Scan from index 1 for segment map.
(slurp_ia64_unwind_table): Use SECTION_HEADER to index
"section_headers".
(process_relocs): Likewise. Also adjust call to GET_ELF_SYMBOLS.
(process_unwind): Likewise.
(process_version_sections): Likewise.
(process_symbol_table): Likewise.
(display_debug_info): Likewise.
(process_dynamic_segment): Fake up a symtab section for changed
GET_ELF_SYMBOLS.
(get_symbol_index_type): Check SHN_LOOS before SHN_LORESERVE.
(process_program_headers): Kill signed/unsigned warning.
(load_debug_str): Likewise.
(display_debug_info): Likewise.
elf_backend_copy_indirect_symbol so that backend has a chance to
copy other necessary fields.
* elf-bfd.h (struct elf_backend_data): Update description of
elf_backend_copy_indirect_symbol.
* elf.c (_bfd_elf_link_hash_copy_indirect): Bail out after
copying flags if this is a weakdef.
* elfxx-ia64.c (elfNN_ia64_hash_copy_indirect): Likewise.
(elfNN_ia64_aix_add_symbol_hook): Use elf_link_hash_lookup rather
than bfd_link_hash_lookup.
* elf32-i386 (elf_i386_adjust_dynamic_symbol): Don't do copy
reloc processing for weakdefs.
* elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol): Likewise.
* elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise.
result of ELF64_R_TYPE to enum before using in a switch.
(ppc64_elf_gc_mark_hook): Likewise.
(ppc64_elf_gc_sweep_hook): Likewise.
(ppc64_elf_reloc_type_class): Likewise.
(IS_ABSOLUTE_RELOC): Define.
(struct ppc_link_hash_entry): New.
(struct ppc_link_hash_table): New.
(ppc_hash_table): Define.
(link_hash_newfunc): New function.
(ppc64_elf_link_hash_table_create): New function.
(create_got_section): New function.
(ppc64_elf_create_dynamic_sections): Call create_got_section. Stash
pointers to our dynamic sections in hash table.
(ppc64_elf_copy_indirect_symbol): New function.
(ppc64_elf_check_relocs): Remove DEBUG code. Use short-cuts to
dynamic sections. Localise vars. Modify code for refcounts
starting from zero. Don't allocate here, or force symbols dynamic.
Don't copy all relocs if shared, select ones we need. Add code
to track possible copy relocs for non-shared link.
(ppc64_elf_gc_mark_hook): Update comment.
(ppc64_elf_gc_sweep_hook): Sweep dynrelocs too.
(ppc64_elf_adjust_dynamic_symbol): Remove DEBUG code. Rewrite .plt
code for reference counting garbage collection. Don't create .plt
entries for functions that don't comply with ABI naming convention,
and don't allocate .plt space here. Use short-cuts to dynamic
sections. If possible, keep dynamic relocations instead of using
copy relocs. Remove confused comments.
(ppc_adjust_dynindx): Delete.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Define.
(allocate_dynrelocs): New function.
(readonly_dynrelocs): New function.
(ppc64_elf_size_dynamic_sections): Rewrite. Allocate local .got
space here, and call allocate_dynrelocs to allocate space for
global .plt, .got and reloc sections. Use short-cuts to dynamic
sections. Call readonly_dynrelocs to determine whether we need
DT_TEXTREL. Don't generate section symbols here, the generic
ELF linker code does it for us.
(ppc64_elf_final_link): Call regular ELF backend linker rather than
gc variety, since we do our own .got handling.
(ppc64_elf_relocate_section): Remove DEBUG code. Make use of
dynamic section short-cuts. Localise vars, and delay setting.
Handle unknown relocs in main switch statement. Replace ugly
complicated tests for unresolvable relocs with a simple direct
scheme using "unresolved_reloc" var. Test ELF_ST_VISIBILITY
before allowing an undefined sym in a shared lib. Do R_*_DS tests
after main switch, when we've set addend. Do non-addend insn
tweaks before main swithc. Ignore input_section->vma when
calculating reloc offsets as it's always zero. Rewrite dynamic
reloc handling. Consolidate R_*_HA handling. Handle more relocs.
(ppc64_elf_finish_dynamic_symbol): Remove DEBUG code. Make use
of dynamic section short-cuts. Reorganise .plt handling code.
Remove confused comments. Take note of ELF_LINK_FORCED_LOCAL.
Move expressions out of swap_reloca_out function calls.
(ppc64_elf_reloc_type_class): New function.
(ppc64_elf_info_to_howto): Move common expression to local var.
(ppc64_elf_finish_dynamic_sections): Remove DEBUG code. Make use
of dynamic section short-cuts. Don't fiddle with section syms
here as the ELF linker does it for us.
(elf_backend_can_refcount): Define.
(bfd_elf64_bfd_link_hash_table_create): Define.
(elf_backend_copy_indirect_symbol): Define.
(elf_backend_reloc_type_class): Define.
(elf_backend_*, bfd_elf64_bfd_* defines): Sort.
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.
