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path: root/bfd/elf32-i386.c
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1995-01-12* sunos.c (m68k_plt_first_entry, sparc_plt_first_entry): Now const.Ken Raeburn1-4/+4
* elf32-i386.c (elf_i386_plt0_entry, elf_i386_plt_entry): Ditto. * archures.c (archures_init_table): Now const. (bfd_arch_init): Adjusted type of local var `ptable'.
1995-01-12Change "reloc_howto_type" typedef to be "const", since all uses of it are (orKen Raeburn1-1/+1
should be) anyways.
1994-12-20 * elf32-i386.c (elf_i386_relocate_section): Correct and expand theIan Lance Taylor1-8/+26
list of cases for which relocation need not be computed. * elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
1994-10-27 * libelf.h (struct bfd_elf_section_data): Add field dynindx.Ian Lance Taylor1-6/+12
* elfcode.h (NAME(bfd_elf,size_dynamic_sections)): Don't finalize the .dynsym, .dynstr or .hash sections until after the backend size_dynamic_sections routine, so that it can add dynamic symbols if it wants to. * elf32-i386.c (elf_i386_adjust_dynamic_symbol): Don't define the symbol to be in the .plt section when generating a shared library if it is a defined symbol. * elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise. (elf32_sparc_size_dynamic_sections): When generating a shared library, allocate space for a dynamic symbol for each output section, storing the index in the dynindx field of the ELF section data. Adjust the other dynindx fields to account for this. (elf32_sparc_adjust_dynindx): New static function. (elf32_sparc_relocate_section): When copying a reloc into a shared library, use the original addend as appropriate. Convert an R_SPARC_32 reloc into an R_SPARC_RELATIVE reloc. Use the dynamic symbol index of the output section, not the normal symbol index. (elf32_sparc_finish_dynamic_sections): Don't die if a section does not exist when setting the value of the dynamic tags. Write out a dynamic symbol for each output section.
1994-10-21fix BFD_ASSERT callsIan Lance Taylor1-3/+3
1994-10-21remove unused variableIan Lance Taylor1-1/+0
1994-10-21 Fix the ELF linker to not require an interpreter if no dynamicIan Lance Taylor1-237/+310
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.
1994-10-17 Use a hash table when writing out ELF symbol names.Ian Lance Taylor1-202/+826
* elfcode.h (elf_stringtab_init): New static function. (bfd_new_strtab, bfd_add_to_strtab, bfd_add_2_to_strtab): Remove. Change all callers to use elf_stringtab_init or _bfd_stringtab_add, and get stringtab lengths using _bfd_stringtab_size. (elf_fake_sections): Change ignored argument to pointer to boolean, and set the boolean to true if an error occurs. If an error has already occurred, don't do anything. (assign_section_numbers): Just set sh_size, not contents. (elf_compute_section_file_positions): Pass the address of a boolean to elf_fake_sections. Pass the address of a bfd_strtab_hash to swap_out_syms. Write out the .strtab section. (prep_headers): Change shstrtab to bfd_strtab_hash. (swap_out_syms): Take a pointer to a bfd_strtab_hash as an argument. Set it to the symbol names. (NAME(bfd_elf,write_object_contents)): Write out the section header names using _bfd_stringtab_emit. (elf_debug_section): Remove first argument; get the section name via the bfd_section pointer. Change caller. (elf_bfd_final_link): Write out the symbol names using _bfd_stringtab_emit. Likewise for the .dynstr section contents. Free the symbol names at the end of the function. (elf_link_input_bfd): Remove the last argument, output_names, from relocate_section. Save the old symbol contents before calling elf_link_output_sym, and restore them afterward. * libelf.h (struct elf_link_hash_table): Change dynstr field to struct bfd_strtab_hash. (struct elf_backend_data): Remove last argument, output_names, from elf_backend_relocate_section field. (struct strtab): Don't define. (struct elf_obj_tdata): Change strtab_ptr field to struct bfd_strtab_hash. * elf32-hppa.c (elf32_hppa_relocate_section): Remove last argument, output_names. * elf32-i386.c (elf_i386_relocate_section): Likewise. * elf32-mips.c (mips_elf_relocate_section): Likewise. * elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
1994-07-22 * aoutx.h (aout_link_check_ar_symbols): When changing a symbol toIan Lance Taylor1-44/+16
common, set the alignment. (aout_link_add_symbols): Restrict the alignment of a common symbol to the alignment power given by the architecture. * elf.c (_bfd_elf_link_hash_newfunc): Don't initialize align. Do initialize copy_offset. * elf32-i386.c (elf_i386_adjust_dynamic_symbol): Use copy_offset field rather than align field. Get alignment using bfd_log2 rather than switch. * elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise. * elf32-i386.c (elf_i386_finish_dynamic_symbol): Use copy_offset, not align. * elf32-sparc.c (elf32_sparc_finish_dynamic_symbol): Likewise.
1994-06-23 Preliminary support for generating shared libraries, from EricIan Lance Taylor1-6/+11
Youngdale <ericy@cais.cais.com>. * elfcode.h (prep_headers): If DYNAMIC, set e_type to ET_DYN. (elf_link_add_object_symbols): If generating a shared library, create dynamic sections for first input BFD with the right format. (elf_link_create_dynamic_sections): Don't create .interp section if creating a shared library. (elf_link_input_bfd): Skip dynamic sections in input file. (elf_bfd_final_link): If creating a shared library, it's OK for dynobj to have sections which are not SEC_IN_MEMORY. * elf32-i386.c (elf_i386_size_dynamic_sections): Only set .interp section if not creating a shared library. * elf32-sparc.c (elf_sparc_size_dynamic_sections): Likewise.
1994-05-19 Add support for ELF shared libraries. Loosely based on work byIan Lance Taylor1-11/+766
Eric Youngdale <ericy@cais.com>. * libelf.h (struct elf_backend_data): Add new fields for dynamic linking: elf_backend_create_dynamic_sections, elf_backend_adjust_dynamic_symbol, elf_backend_size_dynamic_sections, elf_backend_finish_dynamic_symbol, elf_backend_finish_dynamic_sections. (struct elf_link_hash_entry): Change type of align field to bfd_size_type. Add fields dynindx, dynstr_index, weakdef, elf_link_hash_flags. (struct elf_link_hash_table): Add fields dynobj, dynsymcount, dynstr, bucketcount. (bfd_elf32_swap_reloc_in, bfd_elf32_swap_reloc_out): Declare. (bfd_elf32_swap_reloca_in, bfd_elf32_swap_reloca_out): Declare. (bfd_elf32_swap_dyn_in, bfd_elf32_swap_dyn_out): Declare. (bfd_elf32_add_dynamic_entry): Declare. (bfd_elf64_swap_reloc_in, bfd_elf64_swap_reloc_out): Declare. (bfd_elf64_swap_reloca_in, bfd_elf64_swap_reloca_out): Declare. (bfd_elf64_swap_dyn_in, bfd_elf64_swap_dyn_out): Declare. (bfd_elf64_add_dynamic_entry): Declare. * elfcode.h (Elf_External_Dyn): Define. (elf_swap_reloc_in): Define as macro using NAME. Make externally visible. (elf_swap_reloc_out): Likewise. (elf_swap_reloca_in, elf_swap_reloca_out): Likewise. (elf_swap_dyn_in, elf_swap_dyn_out): Define as macro using NAME and as new externally visible function. (elf_fake_sections): Set section type of dynamic sections based on section names. (elf_write_phdrs): Remove. (assign_file_position_for_section): Add new align argument. Change all callers. (get_program_header_size): New static function. (struct seg_info): Remove. (map_program_segments): Completely rewrite. (assign_file_positions_except_relocs): Completely rewrite. (assign_file_positions_for_relocs): Don't set a file position for sections which already have one. Don't bother to align the file position here. (section_from_elf_index): Handle SHT_HASH and SHT_DYNAMIC section types. (elf_section_from_bfd_section): Likewise. (elf_slurp_symbol_table): If section_from_elf_index fails, just use bfd_abs_section rather than returning an error. (elf_sizeof_headers): Make useful. (elf_link_record_dynamic_symbol): New static function. (elf_link_add_object_symbols): Handle dynamic objects. (elf_link_create_dynamic_sections): New static function. (elf_add_dynamic_entry): Define as macro using NAME and as new externally visible function. (NAME(bfd_elf,record_link_assignment)): New function. (elf_buckets): New static variable. (NAME(bfd_elf,size_dynamic_sections)): New function. (struct elf_final_link_info): Add dynsym_sec and hash_sec fields. (elf_bfd_final_link): Handle dynamic linking. Create a section symbol for all ELF sections, not all BFD sections. Store section symbol index in target_index field, not index field. Traverse over global symbols even if stripping. (elf_link_output_extsym): Output dynamic symbols. Mark symbols defined by dynamic objects as undefined. (elf_link_input_bfd): Ignore dynamic objects. Use target_index field for section relocs, and make sure it is set. (elf_reloc_link_order): Use target_index field for section relocs, and make sure it is set. * elf.c (elf_link_hash_newfunc): Initialize dynindx, dynstr_index, weakdef and elf_link_hash_flags fields. (_bfd_elf_link_hash_table_create): Initialize dynobj, dynsymcount, dynstr and bucketcount fields. * elf32-target.h: Initialize new dynamic linking fields. * elf64-target.h: Likewise. * elf32-i386.c: New functions for dynamic linking support. * elf32-sparc.c: Likewise. * bfd-in.h (bfd_elf32_record_link_assignment): Declare. (bfd_elf64_record_link_assignment): Declare. (bfd_elf32_size_dynamic_sections): Declare. (bfd_elf64_size_dynamic_sections): Declare. * bfd-in2.h: Rebuilt.
1994-02-26 * aoutx.h, archive.c: Add casts to avoid warnings from SVR4 cc.Ian Lance Taylor1-20/+64
* ecoff.c, ecofflink.c, ecoffswap.h, srec.c: Likewise. * elf32-i386.c: Likewise. * elfcode.h (bfd_section_from_shdr): Make i unsigned; remove old #if 0 code. (elf_write_phdrs): Make i unsigned. (map_program_segments): Make i and n_left unsigned. (assign_file_positions_except_relocs): Make i unsigned. (write_shdrs_and_ehdr): Make count unsigned. (assign_file_positions_for_relocs): Make i unsigned. (NAME(bfd,elf_write_object_contents)): Make count unsigned. (section_from_elf_index): Make index argument unsigned.
1993-08-04 * coff-h8500.c (rtype2howto): Do an fprintf to stderr rather thanIan Lance Taylor1-0/+127
using printf. * coff-z8k.c (rtype2howto): Likewise. * coffcode.h (dummy_reloc16_extra_cases): Likewise. * elf32-i386.c (TRACE): Likewise. * hp300hpux.c (convert_sym_type, swap_std_reloc_in): Likewise. * rs6000-core.c (rs6000coff_get_section_contents): Likewise. * coffgen.c (coff_print_symbol): Do an fprintf to the file argument rather than using printf.