2009-04-30 Nick Clifton <nickc@redhat.com>
* common.h (STT_GNU_IFUNC): Define.
elfcpp
2009-04-30 Nick Clifton <nickc@redhat.com>
* (enum STT): Add STT_GNU_IFUNC.
gas
2009-04-30 Nick Clifton <nickc@redhat.com>
* config/obj-elf.c (obj_elf_type): Add support for a
gnu_indirect_function type.
* config/tc-i386.c (tc_i386_fix_adjustable): Do not adjust fixups
against indirect function symbols.
* doc/as.texinfo (.type): Document the support for the
gnu_indirect_function symbol type.
* NEWS: Mention the new feature.
gas/testsuite
2009-04-30 Nick Clifton <nickc@redhat.com>
* gas/elf/elf.exp: Extend type test to include an ifunc symbol.
Provide an alternative test for targets which do not support ifunc
symbols.
(type.s): Add entry for an ifunc symbol.
(type.e): Add ifunc entry to expected symbol dump.
(section2.e-armelf): Add entry for ifunc symbol.
(type-noifunc.s): New file.
(type-noifunc.e): New file.
bfd/
2009-04-30 Nick Clifton <nickc@redhat.com>
* elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs
section pointer.
(struct elf_obj_data): Add has_ifunc_symbols boolean.
* elf.c (swap_out_syms): Convert BSF_GNU_INDIRECT_FUNCTION flags
into a STT_GNU_IFUNC symbol type.
(_bfd_elf_is_function_type): Accept STT_GNU_IFUNC as a function
type.
(_bfd_elf_set_osabi): Set the osasbi field to ELFOSABI_LINUX if
the binary contains ifunc symbols.
* elfcode.h (elf_slurp_symbol_table): Translate the STT_GNU_IFUNC
symbol type into a BSF_GNU_INDIRECT_FUNCTION flag.
* elf32-i386.c (is_indirect_function): New function.
(elf_i386_check_relocs): Create an ifunc output section.
(allocate_dynrelocs): Create dynamic relocs in the ifunc output
section if necessary.
(elf_i386_relocate_section): Emit a reloc against an ifunc symbol
if necessary.
(elf_i386_add_symbol_hook): New function. Set the
has_ifunc_symbols field of the elf_obj_data structure if an ifunc
symbol is encountered.
(elf_backend_post_process_headers): Define.
(elf_backend_add_symbol_hook): Define.
(elf_i386_post_process_headers): Rename to
elf_i388_fbsd_post_process_headers.
* elf64-x86_64.c (IS_X86_64_PCREL_TYPE): New macro.
(is_indirect_function): New function.
(elf64_x86_64_check_relocs): Create an ifunc output section.
(allocate_dynrelocs): Create dynamic relocs in the ifunc output
section if necessary.
(elf64_x86_64_relocate_section): Emit a reloc against an ifunc
symbol if necessary.
(elf_i386_add_symbol_hook): Set the has_ifunc_symbols field of the
elf_obj_data structure if an ifunc symbol is encountered.
(elf_backend_post_process_headers): Define.
* elflink.c (_bfd_elf_adjust_dynamic_symbol): Always create a PLT
if we have ifunc symbols to handle.
(get_ifunc_reloc_section_name): New function. Computes the name
for an ifunc section.
(_bfd_elf_make_ifunc_reloc_section): New function. Creates a
section to hold ifunc relocs.
* syms.c (BSF_GNU_INDIRECT_FUNCTION): Define.
(bfd_print_symbol_vandf): Handle ifunc symbols.
(bfd_decode_symclass): Likewise.
* bfd-in2.h: Regenerate.
binutils
2009-04-30 Nick Clifton <nickc@redhat.com>
* readelf.c (dump_relocations): Display a relocation against an
ifunc symbol as if it were a function invocation.
(get_symbol_type): Handle STT_GNU_IFUNC.
ld
2009-04-30 Nick Clifton <nickc@redhat.com>
* NEWS: Mention support for IFUNC symbols.
ld/testsuite
2009-04-30 Nick Clifton <nickc@redhat.com>
* ld-ifunc: New directory.
* ld-ifunc/ifunc.exp: New file: Run the IFUNC tests.
* ld-ifunc/prog.c: New file.
* ld-ifunc/lib.c: New file.
* elf-bfd.h (NUM_SHDR_ENTRIES): Cope with an empty section.
* elflink.c (elf_link_read_relocs_from_section): Use
NUM_SHDR_ENTRIES. Gracefully handle the case where there are
relocs but no symbol table.
* elf32-arm.c (elf32_arm_check_relocs): Likewise.
bfd/
* elf-attrs.c (is_default_attr): Support defaultless attributes.
(bfd_elf_add_obj_attr_int): Get type from _bfd_elf_obj_attrs_arg_type.
(bfd_elf_add_obj_attr_string): Likewise.
(bfd_elf_add_obj_attr_int_string): Likewise.
(_bfd_elf_parse_attributes): Allow for unknown flag bits in type.
* elf-bfd.h (struct obj_attribute): Document new flag bit.
* elf32-arm.c (elf32_arm_obj_attrs_arg_type): Specify that
Tag_nodefaults has no default value.
(elf32_arm_merge_eabi_attributes): Modify the Tag_nodefaults
comment to reflect the new state.
gas/
* read.c (s_vendor_attribute): Allow for unknown flag bits in type.
Julian Brown <julian@codesourcery.com>
bfd/
* elf-bfd.h (NUM_KNOWN_OBJ_ATTRIBUTES): Set to 71 to include all known
ARM attributes in ABI 2.07.
* elf32-arm.c (get_secondary_compatible_arch): New function.
(set_secondary_compatible_arch): New function.
(tag_cpu_arch_combine): New function.
(elf32_arm_copy_one_eabi_other_attribute): Delete function.
(elf32_arm_copy_eabi_other_attribute_list): Delete function.
(elf32_arm_merge_eabi_attributes): Rename order_312 to order_021 to
make it fit with order_01243.
Add support for Tag_also_compatible_with,
Tag_CPU_unaligned_access, Tag_T2EE_use, Tag_Virtualization_use,
Tag_MPextension_use, Tag_nodefaults and Tag_conformance.
Improve/tidy up support for Tag_CPU_raw_name, Tag_CPU_name,
Tag_CPU_arch, Tag_ABI_HardFP_use, Tag_VFP_HP_extension,
Tag_ABI_FP_denormal, Tag_ABI_PCS_GOT_use, Tag_ABI_align8_needed,
Tag_VFP_arch and Tag_ABI_FP_16bit_format.
Rework the way unknown attributes are handled.
Defer errors until all attributes have been processed.
gas/
* config/tc-arm.c (cpu_arch): Change ARM_ARCH_V6M to 11.
include/elf/
* arm.h (TAG_CPU_ARCH_V6_M, TAG_CPU_ARCH_V6S_M): New defines.
(MAX_TAG_CPU_ARCH, TAG_CPU_ARCH_V4T_PLUS_V6_M): New defines.
(Tag_NEON_arch): Rename to Tag_Advanced_SIMD_arch to match ARM ABI
version 2.07.
(Tag_undefined39, Tag_nodefaults): New enum values.
(Tag_also_compatible_with, Tag_T2EE_use): Likewise.
(Tag_conformance, Tag_Virtualization_use): Likewise.
(Tag_undefined69, Tag_MPextension_use): Likewise.
bfd/
* elf-attrs.c (bfd_elf_add_obj_attr_compat): Rename to
bfd_elf_add_obj_attr_int_string.
Read Tag_compatibility from its new location in the attribute array,
rather than the attribute list.
(_bfd_elf_copy_obj_attributes): bfd_elf_add_obj_attr_compat ->
bfd_elf_add_obj_attr_int_string.
(_bfd_elf_parse_attributes): Likewise.
(_bfd_elf_merge_object_attributes): There's now only one
Tag_compatibility, and it's in the array, not the list.
* elf-bfd.h (NUM_KNOWN_OBJ_ATTRIBUTES): Set to 33 to include
Tag_compatibility.
(bfd_elf_add_obj_attr_compat): Rename to
bfd_elf_add_obj_attr_int_string.
(bfd_elf_add_proc_attr_compat): Rename to
bfd_elf_add_proc_attr_int_string.
* elf32-arm.c (elf32_arm_merge_eabi_attributes): Explicitly don't handle
Tag_compatibility.
gas/
* read.c (s_vendor_attribute): bfd_elf_add_obj_attr_compat ->
bfd_elf_add_obj_attr_int_string.
EF_IA_64_ARCHVER_1): New macros. Minor reformatting.
* bfd/Makefile.am (BFD32_BACKENDS): Add new object vmsutil.lo
(BFD32_BACKENDS_CFILES): Add new file vmsutil.c
(vmsutil.lo): Add dependency rule
* bfd/Makefile.in: Regenerate
* bfd/config.bfd (ia64*-*-*vms*): Add case.
* bfd/configure.in (bfd_elf64_ia64_vms_vec): Add case.
* bfd/configure: Regenerate
* bfd/vmsutil.[ch]: New files
* bfd/elf-bfd.h (struct bfd_elf_special_section): Change type of
attr to bfd_vma.
* bfd/elfxx-ia64.c (elfNN_vms_post_process_headers,
elfNN_vms_section_processing, elfNN_vms_final_write_processing,
elfNN_vms_close_and_cleanup, elfNN_vms_section_from_shdr,
elfNN_vms_object_p): New functions
* bfd/targets.c (bfd_elf64_ia64_vms_vec): New target.
* gas/configure.tgt(ia64-*-*vms*): New target.
* gas/dwarf2dbg.h (dwarf2_loc_mark_labels): Make extern.
* gas/tc.h (md_number_to_chars): Declare iff undefined.
* gas/config/obj-elf.c (obj_elf_change_section): Change type of
arg attr to bfd_vma.
(obj_elf_parse_section_letters): Return a bfd_vma. Change type of
variables attr, md_attr to bfd_vma.
(obj_elf_section_word): Likewise.
(obj_elf_section): Change type of variable attr to bfd_vma
* gas/config/obj-elf.h (obj_elf_change_section): Change type of
arg attr to bfd_vma
* gas/config/tc-ia64.c (bfdver.h,time.h): Include.
(ia64_elf_section_letter): Now returns a bfd_vma.
Handle VMS specific attributes.
(ia64_elf_section_flags): Arg attr now a bfd_vma.
(ia64_init): Don't turn on dependency checking for VMS.
(ia64_target_format): Check for VMS flag bit.
(do_alias): Hande decc$ functions.
(get_vms_time): New function.
(ia64_vms_note): New function.
* gas/config/tc-ia64.h (ia64_elf_section_letter): Now returns a bfd_vma.
(ia64_elf_section_flags): Arg attr now a bfd_vma.
(tc_init_after_args): Define for VMS.
* gas/config/tc-alpha.c (alpha_elf_section_letter): Return a bfd_vma.
(alpha_elf_section_flags): Change type of arg attr to bfd_vma.
* gas/config/tc-alpha.h: Likewise.
* gas/config/tc-i386.c (x86_64_section_letter): Return a bfd_vma.
(x86_64_section_word): Return a bfd_vma.
* gas/config/tc-i386.h: Likewise.
* gas/config/tc-ip2k.c (ip2k_elf_section_flags): Change type of arg
attr to bfd_vma.
* gas/config/tc-ip2k.h: Likewise.
* gas/config/tc-mep.c (mep_elf_section_letter): Return a bfd_vma.
(mep_elf_section_flags): Change type of arg attr to bfd_vma.
* gas/config/tc-mep.h: Likewise.
* gas/config/tc-ppc.c (ppc_section_letter): Return a bfd_vma.
(ppc_section_word): Return a bfd_vma.
(ppc_section_flags): Change type of arg attr to bfd_vma.
* gas/config/tc-ppc.h: Likewise.
* gas/config/te-vms.h (DWARF2_DIR_SHOULD_END_WITH_SEPARATOR,
DWAR2_FILE_TIME_NAME, DWARF2_FILE_SIZE_NAME, DWARF2_FILEN_NAME):
New file with new macros
* gas/dwarf2dbg.c (get_filenum, out_file_list): Default and call new
macros.
* common.h (STT_IFUNC): Define.
elfcpp/
* elfcpp.h (enum STT): Add STT_IFUNC.
bfd/
* syms.c (struct bfd_symbol): Add new flag BSF_INDIRECT_FUNCTION.
Remove redundant flag BFD_FORT_COMM_DEFAULT_VALUE. Renumber flags
to remove gaps.
(bfd_print_symbol_vandf): Return 'i' for BSF_INDIRECT_FUNCTION.
(bfd_decode_symclass): Likewise.
* elf.c (swap_out_syms): Translate BSF_INDIRECT_FUNCTION into
STT_IFUNC.
(elf_find_function): Treat STT_IFUNC in the same way as STT_FUNC.
(_bfd_elf_is_function_type): Likewise.
* elf32-arm.c (arm_elf_find_function): Likewise.
(elf32_arm_adjust_dynamic_symbol): Likewise.
(elf32_arm_swap_symbol_in): Likewise.
(elf32_arm_additional_program_headers): Likewise.
* elf32-i386.c (is_indirect_symbol): New function.
(elf_i386_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf_i386_relocate_section): Likewise.
* elf64-x86-64.c (is_indirect_symbol): New function.
(elf64_x86_64_check_relocs): Also generate dynamic relocs for
relocations against STT_IFUNC symbols.
(allocate_dynrelocs): Likewise.
(elf64_x86_64_relocate_section): Likewise.
* elfcode.h (elf_slurp_symbol_table): Translate STT_IFUNC into
BSF_INDIRECT_FUNCTION.
* elflink.c (_bfd_elf_adjust_dynamic_reloc_section): Add support
for STT_IFUNC symbols.
(get_ifunc_reloc_section_name): New function.
(_bfd_elf_make_ifunc_reloc_section): New function.
* elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs field.
* bfd-in2.h: Regenerate.
gas/
* config/obj-elf.c (obj_elf_type): Add support for STT_IFUNC type.
* doc/as.texinfo: Document new feature.
* NEWS: Mention new feature.
gas/testsuite/
* gas/elf/type.s: Add test of STT_IFUNC symbol type.
* gas/elf/type.e: Update expected disassembly.
* gas/elf/elf.exp: Update grep of symbol types.
ld/
* NEWS: Mention new feature.
* pe-dll.c (process_def_file): Replace use of redundant
BFD_FORT_COMM_DEFAULT_VALUE with 0.
* scripttempl/elf.sc: Add .rel.ifunc.dyn and .rela.ifunc.dyn
sections.
ld/testsuite/
* ld-mips-elf/reloc-1-n32.d: Updated expected output for reloc
descriptions.
* ld-mips-elf/reloc-1-n64.d: Likewise.
* ld-i386/ifunc.d: New test.
* ld-i386/ifunc.s: Source file for the new test.
* ld-i386/i386.exp: Run the new test.
given name matches the name of the reloc-containing section
associated with the given section.
(get_dynamic_reloc_section_name): New function. Computes the name
of the section that contains the dynamic relocs associated with
the given section.
(_bfd_elf_get_dynamic_reloc_section): New function. Returns a
pointer to the section containing the dynamic relocs associated
with the given section.
(_bfd_elf_make_dynamic_reloc_section): New function. Creates a
section to contain the dynamic relocs associated with a given
section.
* elf-bfd.h: Prototype the new functions.
* elf-m10300.c (mn10300_elf_check_relocs): Use new functions.
(mn10300_elf_final_link_relocs): Likewise.
* elf32-arm.c (reloc_section_p): Delete - replaced by new
functions.
(elf32_arm_final_link_relocate): Use new functions.
(elf32_arm_check_relocs): Likewise.
* elf32-cris.c (cris_elf_relocate_section): Likewise.
(elf_cris_check_relocs): Likewise.
* elf32-hppa.c (elf32_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_check_relocs): Likewise.
(i370_elf_relocate_section): Likewise.
* elf32-i386.c (elf_i386_check_relocs): Likewise.
* elf32-m32r.c (m32r_elf_relocate_section): Likewise.
(m32r_elf_check_relocs): Likewise.
* elf32-m68k.c (elf_m68k_check_relocs): Likewise.
* elf32_ppc.c (ppc_elf_check_relocs): Likewise.
(ppc_elf_relocate_section): Likewise.
* elf32-s390.c (elf_s390_check_relocs): Likewise.
* elf32-sh.c (sh_elf_relocate_section): Likewise.
(sh_elf_check_relocs): Likewise.
* elf32-vax.c (elf_vax_check_relocs): Likewise.
(elf_vax_relocate_section): Likewise.
* elf64-alpha.c (elf64_alpha_check_relocs): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
* elf64-s390.c (elf_s390_check_relocs): Likewise.
* elf64-sh64.c (sh_elf64_relocate_section): Likewise.
* elf64-x86-64.c (elf64_x86_64_check_relocs): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise.
* elf32-bfin.c (bfin_check_relocs): Remove redundant local
variable 'sreloc'.
(bfin_relocate_section): Likewise.
* elf32-v850.c (v850_elf_check_relocs): Likewise.
(_bfd_elf_default_got_elt_size): Declare.
* elflink.c (struct alloc_got_off_arg): Replace member got_elt_size
by new member info.
(elf_gc_allocate_got_offsets): Adjust for calling bed->got_elt_size
to get the element size instead of using a gofarg entry.
(bfd_elf_gc_common_finalize_got_offsets): Similar.
(_bfd_elf_default_got_elt_size): New function.
* elfxx-target.h: New macro elf_backend_got_elt_size.
(elfNN_bed): Use it.
* elf-bfd.h (elf_backend_data): Add a "rela_plts_and_copies_p" field.
* elfxx-target.h (elf_backend_rela_plts_and_copies_p): New macro.
(elfNN_bed): Use it.
* elf.c (_bfd_elf_get_synthetic_symtab): Use rela_plts_and_copies_p
instead of default_use_rela_p to choose between ".rel.plt" and
".rela.plt".
* elflink.c (_bfd_elf_create_dynamic_sections): Use
rela_plts_and_copies_p instead of default_use_rela_p to choose
between ".rel.plt" and ".rela.plt", and between ".rel.bss" and
".rela.bss".
* elf-bfd.h (enum elf_object_id): New enum, used to identify
target specific extensions to the elf_obj_tdata structure.
(struct elf_obj_tdata): New field 'object_id'.
(elf_object_id, elf_program_header_size, elf_symtab_hdr): New
macros for accessing fields in the elf_obj_tdata structure.
(bfd_elf_mkobject): Rename to bfd_elf_make_generic_object.
(bfd_elf_allocate_object): New function.
* elf.c (bfd_elf_mkobject): Rename to bfd_elf_make_generic_object
and implement by calling bfd_elf_allocate_object.
(bfd_elf_allocate_object): New function: Allocates an
elf_obj_tdata structure, possibly with a target specific
extension.
* elfxx-target.h (bfd_elfNN_mkobject): Use
bfd_elf_make_generic_object as the default value.
* elf32-arm.c (elf32_arm_obj_tdata): Rename to elf_arm_obj_tdata
for consistency with other, similar structures.
(is_arm_elf): New macro. Checks a BFD to make sure that is an ARM
ELF bfd.
(elf32_arm_mkobject): Call bfd_elf_allocate_object.
(bfd_elf32_arm_vfp11_erratum_scan): Use is_arm_elf macro to check
the bfd being processed.
(bfd_elf32_arm_vfp11_fix_veneer_locations): Likewise.
(bfd_elf32_arm_set_target_relocs): Likewise.
(bfd_elf32_arm_final_link_relocate): Likewise.
(bfd_elf32_arm_copy_private_bfd_data): Likewise.
(bfd_elf32_arm_merge_eabi_attributes): Likewise.
(bfd_elf32_arm_merge_private_bfd_data): Likewise.
(bfd_elf32_arm_check_relocs): Likewise.
(bfd_elf32_arm_gc_mark_extra_sections): Likewise.
(bfd_elf32_arm_size_dynamic_sections): Likewise.
(bfd_elf32_arm_process_before_allocation): Use elf_symtab_hdr.
(bfd_elf32_arm_init_maps): Likewise.
(bfd_elf32_arm_final_link_relocate): Likewise.
(bfd_elf32_arm_relocate_section): Likewise.
(bfd_elf32_arm_gc_sweep_hook): Likewise.
(bfd_elf32_arm_check_relocs): Likewise.
(bfd_elf32_arm_size_dynamic_sections): Likewise.
* elf32-i386.c (elf_i386_mkobject): Call bfd_elf_allocate_object.
(is_i386_elf): New macro. Checks a BFD to make sure that is an x86
ELF bfd.
(elf_i386_check_relocs): Use is_i386_elf macro to check the bfd
being processed.
(elf_i386_size_dynamic_sections): Likewise.
(elf_i386_relocate_section): Likewise.
(elf_i386_check_relocs): Use elf_symtab_hdr.
(elf_i386_gc_sweep_hook): Likewise.
(elf_i386_size_dynamic_sections): Likewise.
(elf_i386_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_mkobject): Call bfd_elf_allocate_object.
(elf_create_pointer_linker_section): Use is_ppc_elf_target to
verify that the bfd before accessing target specific fields.
(ppc_elf_check_relocs): Likewise.
(elf_finish_pointer_linker_section): Likewise.
(elf_create_pointer_linker_section): Use elf_symtab_hdr.
(ppc_elf_check_relocs): Likewise.
(ppc_elf_gc_sweep_hook): Likewise.
(ppc_elf_tls_optimize): Likewise.
(ppc_elf_size_dynamic_sections): Likewise.
(ppc_elf_relax_section): Likewise.
(ppc_elf_relocate_section): Likewise.
* elf32-s390.c (struct elf_s390_obj_tdata): Add a comment
reminding programmers to keep this structure in sync with the one
defined in elf64-s390.c.
(elf_s390_mkobject): Call bfd_elf_allocate_object.
(is_s390_elf): New macro. Checks a BFD to make sure that is an s390
ELF bfd.
(elf_s390_check_relocs): Use is_s390_elf macro to check the bfd
being processed.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
(elf_s390_check_relocs): Use elf_symtab_hdr.
(elf_s390_gc_sweep_hook): Likewise.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
* elf32-sh.c (sh_elf_mkobject): Call bfd_elf_allocate_object.
(is_sh_elf): New macro. Checks a BFD to make sure that is an SH
ELF bfd.
(sh_elf_size_dynamic_sections): Use is_sh_elf macro to check the
bfd being processed.
(sh_elf_relocate_section): Likewise.
(sh_elf_check_relocs): Likewise.
(sh_elf_copy_private_data): Likewise.
(sh_elf_relax_section): Use elf_symtab_hdr.
(sh_elf_size_dynamic_sections): Likewise.
(sh_elf_relocate_section): Likewise.
(sh_elf_get_relocated_section_contents): Likewise.
(sh_elf_gc_sweep_hook): Likewise.
(sh_elf_check_relocs): Likewise.
* elf64-alpha.c (elf64_alpha_mkobject): Call bfd_elf_allocate_object.
(is_alpha_elf): New macro. Checks a BFD to make sure that is an
Alpha ELF bfd.
(elf64_alpha_create_got_section): Use is_alpha_elf macro to check
the bfd being processed.
(elf64_alpha_create_dynamic_section): Likewise.
(elf64_alpha_check_relocs): Likewise.
(elf64_alpha_size_got_sections): Likewise.
(elf64_alpha_relax_section): Likewise.
(elf64_alpha_relocate_section): Likewise.
(elf64_alpha_final_link): Likewise.
(elf64_alpha_check_relocs): Use elf_symtab_hdr.
(elf64_alpha_relax_section): Likewise.
(elf64_alpha_relocate_section_r): Likewise.
(elf64_alpha_relocate_section): Likewise.
* elf64-ppc.c (ppc64_elf_mkobject): Call bfd_elf_allocate_object.
(ppc64_elf_check_relocs): Use is_ppc64_elf_target to check the bfd
being processed.
(opd_entry_value): Likewise.
(allocate_dynrelocs): Likewise.
(ppc64_elf_relocate_section): Likewise.
(ppc64_elf_check_relocs): Use elf_symtab_hdr.
(opd_entry_value): Likewise.
(ppc64_elf_gc_sweep_hook): Likewise.
(get_sym_h): Likewise.
(ppc64_elf_edit_opd): Likewise.
(ppc64_elf_tls_optimize): Likewise.
(ppc64_elf_edit_toc): Likewise.
(ppc64_elf_size_dynamic_sections): Likewise.
(toc_adjusting_stub_needed): Likewise.
(ppc64_elf_size_stubs): Likewise.
(ppc64_elf_relocate_section): Likewise.
* elf64-s390.c (struct elf_s390_obj_tdata): Add a comment
reminding programmers to keep this structure in sync with the one
defined in elf32-s390.c.
(elf_s390_mkobject): Call bfd_elf_allocate_object.
(is_s390_elf): New macro. Checks a BFD to make sure that is an s390
ELF bfd.
(elf_s390_check_relocs): Use is_s390_elf macro to check the bfd
being processed.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
(elf_s390_check_relocs): Use elf_symtab_hdr.
(elf_s390_gc_sweep_hook): Likewise.
(elf_s390_size_dynamic_sections): Likewise.
(elf_s390_relocate_section): Likewise.
* elf64-x86_64.c (elf64_x86_64_mkobject): Call bfd_elf_allocate_object.
(is_x86_64_elf): New macro. Checks a BFD to make sure that is an
x86_64 ELF bfd.
(elf64_x86_64_check_relocs): Use is_x86_64_elf macro to check the bfd
being processed.
(elf64_x86_64_size_dynamic_sections): Likewise.
(elf64_x86_64_relocate_section): Likewise.
(elf64_x86_64_check_relocs): Use elf_symtab_hdr.
(elf64_x86_64_gc_sweep_hook): Likewise.
(elf64_x86_64_size_dynamic_sections): Likewise.
(elf64_x86_64_relocate_section): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_mkobject): Call bfd_elf_allocate_object.
(is_sparc_elf): New macro. Checks a BFD to make sure that is a Sparc
ELF bfd.
(_bfd_sparc_elf_check_relocs): Use is_sparc_elf macro to check the
bfd being processed.
(_bfd_sparc_elf_gc_sweep_hook): Likewise.
(_bfd_sparc_elf_size_dynamic_sections): Likewise.
(_bfd_sparc_elf_check_relocs): Use elf_symtab_hdr.
(_bfd_sparc_elf_gc_sweep_hook): Likewise.
(_bfd_sparc_elf_size_dynamic_sections): Likewise.
(_bfd_sparc_elf_relocate_section): Likewise.
PR 5604
* elf-bfd.h (struct elf_backend_data): Add gc_keep. Remove param
names from others.
(_bfd_elf_gc_keep): Declare.
* elfxx-target.h (elf_backend_gc_keep): Define.
(elfNN_bed): Init new field.
* elflink.c (_bfd_elf_gc_keep): New function.
(bfd_elf_gc_sections): Call gc_keep.
* elf64-ppc.c (elf_backend_gc_keep): Define.
(struct _ppc64_elf_section_data): Move .opd related fields to
a struct so they don't occupy the same storage. Adjust accesses
throughout file.
(ppc64_elf_gc_keep): New function, split out from..
(ppc64_elf_gc_mark_hook): ..here. Don't call _bfd_elf_gc_mark
to mark .opd section, just set gc_mark.
(ppc64_elf_edit_opd): Remove no_opd_opt parm. Don't set opd->adjust
unless we are changing .opd. Test non-NULL opd->adjust at all
accesses throughout file.
* elf64-ppc.h (ppc64_elf_edit_opd): Update prototype.
ld/
PR 5604
* ldlang.c (lang_gc_sections): Move code to set SEC_KEEP on entry
syms to _bfd_elf_gc_keep.
* emultempl/ppc64elf.em (ppc_before_allocation): Don't call
ppc64_elf_edit_opd if no_opd_opt.
PR ld/5526
* elf-bfd.h (eh_cie_fde): Add u.cie.u.full_cie and u.cie.merged
fields. Rename u.cie.u.merged to u.cie.u.merged_with.
(eh_frame_sec_info): Add a cies field.
(eh_frame_hdr_info): Add a merge_cies field.
* elf-eh-frame.c (cie): Add a reloc_index member to the personality
union.
(_bfd_elf_begin_eh_frame_parsing): Set hdr_info->merge_cies instead
of hdr_info->cies.
(_bfd_elf_parse_eh_frame): Remove tmp_cie. Ccreate an array of
cie structures in all cases and use it instead of extended_cies.
If merging, store the cie array in sec_info->cies and point each
CIE's eh_fde_cie at the associated element. Do not try to
calculate the value of the personality routine here; record the
offset of the relocation instead. Do not merge CIEs here.
(_bfd_elf_end_eh_frame_parsing): Do not free hdr_info->cies here...
(_bfd_elf_discard_section_eh_frame_hdr): ...do it here instead.
(_bfd_elf_gc_mark_fdes): Mark the original (unmerged) CIE.
(find_merged_cie): New function.
(_bfd_elf_gc_mark_fdes): Use it. Free sec_info->cies.
ld/testsuite/
PR ld/5526
* ld-elf/eh6.s, ld-elf/eh6.d: New test.
Scan the segment map looking for the segment containing a
specified function.
* elf-bfd.h: Prototype the new function.
* elf-hppa.h (elf_hppa_osec_to_segment): Delete.
(elf_hppa_record_segment_addrs): Use new function.
* elf32-bfin.c (_bfdfdpic_osec_to_segment): Use new function.
* elf32-frv.c (_frvfdpic_osec_to_segment): Use new function.
* elf32-hppa.c (hppa_record_segment_addr): Use new function.
* elfxx-ia64.c (elfNN_ia64_relocate_section): Use new function.
* elf-bfd.h (eh_cie_fde): Replace u.cie.merged with a union of
a merged field and a sec field.
(eh_frame_hdr_info): Remove offsets_adjusted.
* elf-eh-frame.c (_bfd_elf_parse_eh_frame): Update accesses to
the CIE merged field.
(_bfd_elf_gc_mark_fdes): Likewise.
(_bfd_elf_discard_section_eh_frame): Likewise. Set u.cie.u.sec
when clearing the removed flag.
(_bfd_elf_eh_frame_section_offset): Remove offsets_adjusted handling.
(_bfd_elf_write_section_eh_frame): Likewise. Apply output_offsets
where appropriate.
* elf-bfd.h (eh_cie_fde): Move add_fde_encoding and
per_encoding_relative to u.cie. Add commentary.
* elf-eh-frame.c (cie): Remove make_relative.
(extra_augmentation_string_bytes): Update use of add_fde_encoding.
(extra_augmentation_data_bytes): Likewise. Use an FDE's own
add_augmentation_size field, rather than referring to the CIE.
(_bfd_elf_parse_eh_frame): Don't set the struct cie
make_relative field; set the eh_cie_fde field directly.
Update setting of add_fde_encoding and per_encoding_relative.
Copy make_relative and add_augmentation_size from the CIE
to the FDE.
(_bfd_elf_discard_section_eh_frame): Use the FDE's own
make_relative field.
(_bfd_elf_eh_frame_section_offset): Likewise.
(_bfd_elf_write_section_eh_frame): Update accesses to
add_fde_encoding and per_encoding_relative. Use the FDE's
own make_relative and add_augmentation_size fields.
* elf-bfd.h (eh_cie_fde): Remove need_lsda_relative.
Move make_lsda_relative to u.cie.
* elf-eh-frame.c (cie): Rename make_lsda_relative to
can_make_lsda_relative.
(_bfd_elf_parse_eh_frame): Don't set the old eh_cie_fde
make_lsda_relative field. Update after cie renaming.
Set u.cie.make_lsda_relative if can_make_lsda_relative
and if we find a relocation against the LSDA.
(_bfd_elf_discard_section_eh_frame): Copy make_lsda_relative when
changing a CIE's group representative.
(_bfd_elf_eh_frame_section_offset): Don't set need_ldsa_relative here.
(_bfd_elf_write_section_eh_frame): Check u.cie.make_lsda_relative
rather than need_lsda_relative.
* elf-bfd.h (eh_cie_fde): Add u.fde.next_for_section and
u.cie.gc_mark.
(bfd_elf_section_data): Add fde_list.
(elf_fde_list): New macro.
(elf_obj_tdata): Add eh_frame_section.
(elf_eh_frame_section): New macro.
(_bfd_elf_gc_mark_reloc): Remove last parameter.
(_bfd_elf_gc_mark_fdes): Declare.
* elf-eh-frame.c (_bfd_elf_get_eh_frame_sec_info): Chain the FDEs
for each input section.
(mark_entry, _bfd_elf_gc_mark_fdes): New functions.
* elflink.c (_bfd_elf_gc_mark_reloc): Remove is_eh parameter.
(_bfd_elf_gc_mark): Update call accordingly. Mark the relocations
againts the section's FDEs. Don't mark the bfd's elf_eh_frame_section.
(bfd_elf_gc_sections): Parse each input bfd's .eh_frame before
marking any input sections. Remove the current EH handling.
* section.c (bfd_section): Remove gc_mark_from_eh.
* ecoff.c (bfd_debug_section): Update initializer accordingly.
* elf-bfd.h (eh_cie_fde): Add u.cie. Document how u.fde.cie_inf
changes when removed == 0.
(eh_frame_hdr_info): Add parsed_eh_frames.
(_bfd_elf_begin_eh_frame_parsing): Declare.
(_bfd_elf_parse_eh_frame): Declare.
(_bfd_elf_end_eh_frame_parsing): Declare.
* elf-eh-frame.c (_bfd_elf_begin_eh_frame_parsing): New function.
(_bfd_elf_parse_eh_frame): New function, split out from
_bfd_elf_discard_section_eh_frame. Make a first pass through the
buffer to calculate the number of entries and CIEs. Allocate memory
for them before the main loop. Replace current extended cie
representation with a pair of pointers, one to the local eh_cie_fde
and one to the full struct cie. Allocate a separate array of struct
cies if not merging. Merge CIEs during the main loop and set up each
u.cie.merged field. Point an FDE's cie_inf field directly at the
local CIE. Initially assume that all entries should be removed.
(_bfd_elf_end_eh_frame_parsing): New function.
(_bfd_elf_discard_section_eh_frame): Assume that the section has
already been parsed. Use a separate pass to mark entries that
need to be kept. Use the u.cie.merged field to track a CIE's
group representative.
* elflink.c (bfd_elf_discard_info): Call _bfd_elf_parse_eh_frame
before _bfd_elf_discard_section_eh_frame. Wrap loop with calls to
_bfd_elf_begin_eh_frame_parsing and _bfd_elf_end_eh_frame_parsing.
* elf-bfd.h (eh_cie_fde): Put cie_inf in a union. Add a reloc_index
field. Use bitfields for fde_encoding, lsda_encoding and lsda_offset.
* elf-eh-frame.c (extra_augmentation_data_bytes): Adjust cie_inf
accesses after the above change.
(_bfd_elf_eh_frame_section_offset): Likewise.
(_bfd_elf_write_section_eh_frame): Likewise.
(_bfd_elf_discard_section_eh_frame): Likewise. Set up reloc_index.
* elf-bfd.h (_bfd_elf_gc_mark_rsec, _bfd_elf_gc_mark_reloc): Declare.
(_bfd_elf_gc_mark): Use elf_gc_mark_hook_fn.
* elflink.c (init_reloc_cookie, fini_reloc_cookie)
(init_reloc_cookie_rels, fini_reloc_cookie_rels): New functions,
split out from...
(bfd_elf_discard_info): ...here.
(init_reloc_cookie_for_section): New function.
(fini_reloc_cookie_for_section): Likewise.
(_bfd_elf_gc_mark_rsec, _bfd_elf_gc_mark_reloc): New functions,
split out from...
(_bfd_elf_gc_mark): ...here. Use init_reloc_cookie_for_section
and fini_reloc_cookie_for_section.
* elf-bfd.h (struct elf_obj_tdata): New BUILD_ID_SIZE, BUILD_ID.
* elf.c (elfcore_read_notes): Split to ...
(elf_read_notes) ... here ...
(elf_parse_notes): ... and here. Check `bfd_get_format (abfd)' with
the former subfunctions called only for BFD_CORE.
Call ELFOBJ_GROK_GNU_NOTE for BFD_OBJECT files with the owner "GNU".
(_bfd_elf_make_section_from_shdr): Call ELF_PARSE_NOTES for SHT_NOTEs.
(bfd_section_from_phdr): Update the call for renamed ELFCORE_READ_NOTES.
(elfobj_grok_gnu_build_id, elfobj_grok_gnu_note): New functions.
Code advisory: Roland McGrath
