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Diffstat (limited to 'bfd/ChangeLog')
| -rw-r--r-- | bfd/ChangeLog | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 81aa8ee..6b5a3e3 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,84 @@ +Fri Oct 21 17:13:07 1994 Ian Lance Taylor <ian@sanguine.cygnus.com> + + Fix the ELF linker to not require an interpreter if no dynamic + objects were seen, even when linking PIC code. + * libelf.h (ELF_LINK_HASH_NEEDS_PLT): Define. + (struct elf_link_hash_table): Add field dynamic_sections_created. + * elfcode.h (elf_link_record_dynamic_symbol): Create dynstr if it + doesn't already exist. + (elf_link_add_object_symbols): Create dynamic sections based on + dynamic_sections_created field, not dynobj field. Don't bother to + set dynobj. + (elf_link_create_dynamic_sections): If dynamic sections were + already created, don't do anything. If dynobj is already set, use + it; otherwise, set it to the bfd argument. Don't initialize + dynsymcount. Only create dynstr if it does not exist. Set + dynamic_sections_created to true. + (NAME(bfd_elf,size_dynamic_sections)): Skip most of this function + if no dynamic objects were seen. + (elf_adjust_dynamic_symbol): If a symbol has the + ELF_LINK_HASH_NEEDS_PLT flag set, let the backend adjust it. + (elf_bfd_final_link): Change most decisions based on dynobj to + check dynamic_sections_created instead. + (elf_link_output_extsym): Only handle dynamic symbols if a dynamic + object was seen. + * elf.c (_bfd_elf_link_hash_table_init): Initialize new field + dynamic_sections_created. Set dynsymcount to 1, not 0. + * elf32-i386.c (elf_i386_create_dynamic_sections): Call + elf_i386_create_got_section rather than creating the .got and + .got.plt sections. + (elf_i386_create_got_section): New static function. + (elf_i386_check_relocs): Just call elf_i386_create_got_section if + a GOT table is needed, not bfd_elf32_link_create_dynamic_sections. + Only create the .rel.got section, and only make space for a reloc, + for a global symbol or when generating a shared object. For a + R_386_PLT32 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag. + (elf_i386_adjust_dynamic_symbol): Rework initial assertion to + permit ELF_LINK_HASH_NEEDS_PLT non dynamic symbols. Create a + procedure linkage table entry for such symbols. But, if no + dynamic objects were seen, never create a PLT entry. + (elf_i386_size_dynamic_sections): If no dynamic objects were seen, + skip most of this function, and force the size of the .rel.got + section to zero. + (elf_i386_relocate_section): For a R_386_GOT32 reloc against a global + symbol when no dynamic object was seen, initialize the contents of + the .got section. For a R_386_GOT32 against a local symbol, only + create a R_386_RELATIVE reloc when generating a shared object. + Treat a R_386_PLT32 reloc against a symbol for which we did not + create a PLT entry as a R_386_PC32 reloc. + (elf_i386_finish_dynamic_sections): Only fiddle with the dynamic + entries and the PLT if we saw a dynamic object. + * elf32-sparc.c (elf_sparc_howto_table): Fix R_SPARC_PC22 by + setting rightshift to 10. Fix R_SPARC_WPLT20 by setting + rightshift to 2, size to 2, bitsize to 30, and dst_mask to + 0x3fffffff. + (elf32_sparc_create_dynamic_sections): Don't set the size of the + .plt section. Call elf32_sparc_create_got_section rather than + creating the .got section. + (elf32_sparc_check_relocs): Call elf32_sparc_create_got_section if + a GOT table is needed, not bfd_elf32_link_create_dynamic_sections. + Only create the .rela.got section, and only make space for a + reloc, for a global symbol or when generating a shared object. + Set the alignment of the .rela.got section to 2. For a + R_SPARC_WPLT30 reloc, just set the ELF_LINK_HASH_NEEDS_PLT flag. + (elf32_sparc_adjust_dynamic_symbol): Rework initial assertion to + permit ELF_LINK_HASH_NEDS_PLT non dynamic symbols. Create a + procedure linkage table for such symbols. But, if no dynamic + objects were seen, never create a PLT entry. Initialize the size + of the .plt section. + (elf32_sparc_size_dynamic_sections): If no dynamic objects were + seen, skip most of this function, and force the size of the + .rela.got section to zero. Strip empty reloc sections, and strip + an empty .plt section. + (elf32_sparc_relocate_section): For a GOT reloc against a global + symbol when no dynamic object was seen, initialize the contents of + the .got section. For a GOT reloc against a local symbol, only + create a R_SPARC_RELATIVE reloc when generating a shared object. + Treat a R_SPARC_WPLT30 reloc against a symbol for which we did not + create a PLT entry as a R_SPARC_WDISP30 reloc. + (elf32_sparc_finish_dynamic_sections): Only fiddle with the + dynamic entries and the PLT if we saw a dynamic object. + Thu Oct 20 13:28:45 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com) * elfcode.h (elf_map_symbols): Don't worry about section symbols |