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Re: [PATCH] Support -z combreloc in binutils (take 2)
Hi Jakub,
> 2001-08-22 Jakub Jelinek <jakub@redhat.com>
>
> * elf-bfd.h (enum elf_reloc_type_class): New.
> (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.
> (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.
Approved. Please check in at your leisure!
Cheers
Nick