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eea6121ac0
* section.c (struct sec): Rename "_cooked_size" to "size". Rename "_raw_size" to "rawsize". (STD_SECTION): Adjust comments. (bfd_set_section_size, bfd_get_section_contents): Use size. (bfd_malloc_and_get_section): New function. * bfd-in.h (bfd_section_size, bfd_get_section_size): Use size. * coff-sh.c (sh_relax_section): Alloc coff_section_data struct early. Correctly free reloc and contents memory. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Delete FIXME and fake CIE now that we can shink section size to zero. (_bfd_elf_write_section_eh_frame): Likewise.. * elf32-ppc.c (ppc_elf_relax_section): Delay reading section contents. * elf-m10300.c (mn10300_elf_final_link_relocate): Don't use _bfd_stab_section_offset. Use _bfd_elf_section_offset. * stabs.c (_bfd_stab_section_offset_): Remove unused args and unneeded indirection. * elf.c (_bfd_elf_section_offset): .. and update call. * libbfd-in.h (_bfd_stab_section_offset): Update prototype. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. Replace occurrences of "_raw_size" and "_cooked_size" in most places with "size". Set new "rawsize" for stabs, eh_frame, and SEC_MERGE sections. Use "rawsize", if non-zero, for bfd_get_section_contents calls if the section might be a stabs, eh_frame, or SEC_MERGE section. Similarly use "rawsize", if non-zero, in reloc functions to validate reloc addresses. Use new bfd_malloc_and_get_section in most places where bfd_get_section_contents was called. Expand all occurrences of bfd_section_size and bfd_get_section_size. Rename "raw_size" var in grok_prstatus and similar functions to "size". * aix386-core.c (aix386_core_file_p): .. * aix5ppc-core.c (xcoff64_core_p): .. * aout-adobe.c (aout_adobe_callback, aout_adobe_write_object_contents, aout_adobe_set_section_contents): .. * aout-target.h (callback): .. * aout-tic30.c (tic30_aout_callback, tic30_aout_final_link_relocate, MY_bfd_final_link): .. * aoutf1.h (sunos4_core_file_p): .. * aoutx.h (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, translate_from_native_sym_flags, final_link, aout_link_input_section): .. * binary.c (binary_object_p, binary_canonicalize_symtab, binary_set_section_contents): .. * bout.c (b_out_callback, b_out_write_object_contents, b_out_set_section_contents, b_out_bfd_relax_section, b_out_bfd_get_relocated_section_contents): .. * cisco-core.c (cisco_core_file_validate): .. * coff-alpha.c (alpha_ecoff_object_p, alpha_ecoff_get_relocated_section_conten, alpha_relocate_section): .. * coff-arm.c (coff_arm_relocate_section, bfd_arm_allocate_interworking_sections): .. * coff-h8300.c (h8300_reloc16_extra_cases, h8300_bfd_link_add_symbols): .. * coff-mips.c (mips_refhi_reloc, mips_gprel_reloc): .. * coff-ppc.c (coff_ppc_relocate_section, ppc_allocate_toc_section, ppc_bfd_coff_final_link): .. * coff-rs6000.c (xcoff_reloc_type_br, xcoff_ppc_relocate_section): .. * coff-sh.c (sh_relax_section, sh_relax_delete_bytes, sh_align_loads, sh_coff_get_relocated_section_contents): .. * coff64-rs6000.c (xcoff64_write_object_contents, xcoff64_reloc_type_br, xcoff64_ppc_relocate_section): .. * coffcode.h (coff_compute_section_file_positions, coff_write_object_contents): .. * coffgen.c (make_a_section_from_file, coff_write_symbols, coff_section_symbol, build_debug_section): .. * cofflink.c (coff_link_add_symbols, _bfd_coff_final_link, process_embedded_commands, _bfd_coff_link_input_bfd, _bfd_coff_write_global_sym): .. * cpu-arm.c (bfd_arm_update_notes, bfd_arm_get_mach_from_notes): .. * cpu-ns32k.c (do_ns32k_reloc, _bfd_ns32k_final_link_relocate): .. * dwarf1.c (parse_line_table, _bfd_dwarf1_find_nearest_line): .. * dwarf2.c (read_indirect_string, read_abbrevs, decode_line_info, _bfd_dwarf2_find_nearest_line): .. * ecoff.c (bfd_debug_section, ecoff_set_symbol_info, ecoff_compute_section_file_positions, _bfd_ecoff_write_object_contents, ecoff_indirect_link_order): .. * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame, _bfd_elf_discard_section_eh_frame_hdr, _bfd_elf_maybe_strip_eh_frame_hdr, _bfd_elf_eh_frame_section_offset, _bfd_elf_write_section_eh_frame, _bfd_elf_write_section_eh_frame_hdr): .. * elf-hppa.h (elf_hppa_sort_unwind): .. * elf-m10200.c (mn10200_elf_relax_section, mn10200_elf_relax_delete_bytes, mn10200_elf_get_relocated_section_contents): .. * elf-m10300.c (_bfd_mn10300_elf_create_got_section, mn10300_elf_check_relocs, mn10300_elf_relax_section, mn10300_elf_relax_delete_bytes, mn10300_elf_get_relocated_section_contents, _bfd_mn10300_elf_adjust_dynamic_symbol, _bfd_mn10300_elf_discard_copies, _bfd_mn10300_elf_size_dynamic_sections, _bfd_mn10300_elf_finish_dynamic_sections): .. * elf.c (_bfd_elf_print_private_bfd_data, bfd_elf_get_bfd_needed_list, _bfd_elf_make_section_from_phdr, elf_fake_sections, bfd_elf_set_group_contents, map_sections_to_segments, elf_sort_sections, assign_file_positions_for_segments, SECTION_SIZE, copy_private_bfd_data, _bfd_elf_get_dynamic_reloc_upper_bound, _bfd_elf_canonicalize_dynamic_reloc, elfcore_maybe_make_sect, _bfd_elfcore_make_pseudosection, elfcore_grok_prstatus, elfcore_grok_lwpstatus, elfcore_grok_win32pstatus, elfcore_grok_note, elfcore_grok_nto_status, elfcore_grok_nto_gregs, _bfd_elf_rel_local_sym, _bfd_elf_get_synthetic_symtab): .. * elf32-arm.h (bfd_elf32_arm_allocate_interworking_sect, bfd_elf32_arm_process_before_allocation, elf32_arm_adjust_dynamic_symbol, allocate_dynrelocs, elf32_arm_size_dynamic_sections, elf32_arm_finish_dynamic_sections, elf32_arm_write_section): .. * elf32-cris.c (cris_elf_grok_prstatus, elf_cris_finish_dynamic_sections, cris_elf_gc_sweep_hook, elf_cris_adjust_gotplt_to_got, elf_cris_adjust_dynamic_symbol, cris_elf_check_relocs, elf_cris_size_dynamic_sections, elf_cris_discard_excess_dso_dynamics, elf_cris_discard_excess_program_dynamics): .. * elf32-d30v.c (bfd_elf_d30v_reloc, bfd_elf_d30v_reloc_21): .. * elf32-dlx.c (_bfd_dlx_elf_hi16_reloc): .. * elf32-frv.c (_frvfdpic_add_dyn_reloc, _frvfdpic_add_rofixup, _frv_create_got_section, _frvfdpic_assign_plt_entries, elf32_frvfdpic_size_dynamic_sections, elf32_frvfdpic_modify_segment_map, elf32_frvfdpic_finish_dynamic_sections): .. * elf32-h8300.c (elf32_h8_relax_section, elf32_h8_relax_delete_bytes, elf32_h8_get_relocated_section_contents): .. * elf32-hppa.c (hppa_build_one_stub, hppa_size_one_stub, elf32_hppa_adjust_dynamic_symbol, allocate_plt_static, allocate_dynrelocs, elf32_hppa_size_dynamic_sections, group_sections, elf32_hppa_size_stubs, elf32_hppa_set_gp, elf32_hppa_build_stubs, elf32_hppa_finish_dynamic_sections): .. * elf32-i370.c (i370_elf_adjust_dynamic_symbol, i370_elf_size_dynamic_sections, i370_elf_check_relocs, i370_elf_finish_dynamic_sections): .. * elf32-i386.c (elf_i386_grok_prstatus, elf_i386_adjust_dynamic_symbol, allocate_dynrelocs, elf_i386_size_dynamic_sections, elf_i386_relocate_section, elf_i386_finish_dynamic_sections): .. * elf32-i860.c (i860_howto_pc26_reloc, i860_howto_pc16_reloc, i860_howto_highadj_reloc, i860_howto_splitn_reloc): .. * elf32-ip2k.c (ip2k_is_switch_table_128, ip2k_relax_switch_table_128, ip2k_is_switch_table_256, ip2k_relax_switch_table_256, ip2k_elf_relax_section, adjust_all_relocations, ip2k_elf_relax_delete_bytes): .. * elf32-m32r.c (m32r_elf_do_10_pcrel_reloc, m32r_elf_hi16_reloc, m32r_elf_generic_reloc, m32r_elf_adjust_dynamic_symbol, allocate_dynrelocs, m32r_elf_size_dynamic_sections, m32r_elf_relocate_section, m32r_elf_finish_dynamic_sections, m32r_elf_relax_section, m32r_elf_relax_delete_bytes, m32r_elf_get_relocated_section_contents): .. * elf32-m68hc11.c (m68hc11_elf_build_one_stub, m68hc11_elf_size_one_stub, m68hc11_elf_relax_section, m68hc11_elf_relax_delete_bytes): .. * elf32-m68hc12.c (m68hc12_elf_build_one_stub, m68hc12_elf_size_one_stub): .. * elf32-m68hc1x.c (elf32_m68hc11_size_stubs, elf32_m68hc11_build_stubs, m68hc11_elf_special_reloc): .. * elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_gc_sweep_hook, elf_m68k_adjust_dynamic_symbol, elf_m68k_size_dynamic_sections, elf_m68k_discard_copies, elf_m68k_finish_dynamic_sections): .. * elf32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elf32-or32.c (or32_elf_consth_reloc): .. * elf32-ppc.c (ppc_elf_relax_section, ppc_elf_addr16_ha_reloc, elf_create_pointer_linker_section, ppc_elf_create_linker_section, ppc_elf_additional_program_headers, ppc_elf_adjust_dynamic_symbol, allocate_dynrelocs, ppc_elf_size_dynamic_sections, ppc_elf_finish_dynamic_sections, ppc_elf_grok_prstatus, ppc_elf_final_write_processing): .. * elf32-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections, elf_s390_grok_prstatus): .. * elf32-sh.c (sh_elf_reloc_loop, sh_elf_relax_section, sh_elf_relax_delete_bytes, sh_elf_align_loads, sh_elf_adjust_dynamic_symbol, allocate_dynrelocs, sh_elf_size_dynamic_sections, sh_elf_get_relocated_section_contents, sh_elf_finish_dynamic_sections, elf32_shlin_grok_prstatus): .. * elf32-sh64-com.c (sh64_address_in_cranges, sh64_get_contents_type): .. * elf32-sh64.c (sh64_find_section_for_address, sh64_elf_final_write_processing): .. * elf32-sparc.c (sparc_elf_wdisp16_reloc, sparc_elf_hix22_reloc, sparc_elf_lox10_reloc, elf32_sparc_adjust_dynamic_symbol, allocate_dynrelocs, elf32_sparc_size_dynamic_sections, elf32_sparc_relocate_section, elf32_sparc_finish_dynamic_sections): .. * elf32-v850.c (v850_elf_reloc, v850_elf_relax_section): .. * elf32-vax.c (elf_vax_check_relocs, elf_vax_adjust_dynamic_symbol, elf_vax_size_dynamic_sections, elf_vax_discard_copies, elf_vax_instantiate_got_entries, elf_vax_relocate_section, elf_vax_finish_dynamic_sections): .. * elf32-xstormy16.c (xstormy16_elf_24_reloc, xstormy16_elf_check_relocs, xstormy16_relax_plt_check, xstormy16_elf_relax_section, xstormy16_elf_always_size_sections, xstormy16_elf_finish_dynamic_sections): .. * elf32-xtensa.c (xtensa_read_table_entries, elf_xtensa_allocate_got_size, elf_xtensa_allocate_local_got_size, elf_xtensa_size_dynamic_sections, elf_xtensa_do_reloc, bfd_elf_xtensa_reloc, elf_xtensa_relocate_section, elf_xtensa_combine_prop_entries, elf_xtensa_finish_dynamic_sections, elf_xtensa_discard_info_for_section, elf_xtensa_grok_prstatus, get_relocation_opcode, retrieve_contents, find_relaxable_sections, collect_source_relocs, is_resolvable_asm_expansion, remove_literals, relax_section, shrink_dynamic_reloc_sections, relax_property_section, xtensa_callback_required_dependence): .. * elf64-alpha.c (elf64_alpha_reloc_gpdisp, elf64_alpha_relax_section, elf64_alpha_check_relocs, elf64_alpha_adjust_dynamic_symbol, elf64_alpha_calc_got_offsets_for_symbol, elf64_alpha_calc_got_offsets, elf64_alpha_size_plt_section, elf64_alpha_size_plt_section_1, elf64_alpha_always_size_sections, elf64_alpha_calc_dynrel_sizes, elf64_alpha_size_rela_got_section, elf64_alpha_size_rela_got_1, elf64_alpha_size_dynamic_sections, elf64_alpha_emit_dynrel, elf64_alpha_finish_dynamic_sections, elf64_alpha_final_link): .. * elf64-hppa.c (allocate_dynrel_entries, elf64_hppa_size_dynamic_sections, elf64_hppa_finish_dynamic_sections): .. * elf64-mips.c (mips_elf64_gprel32_reloc, mips16_gprel_reloc, mips_elf64_canonicalize_dynamic_reloc, mips_elf64_slurp_reloc_table, elf64_mips_grok_prstatus): .. * elf64-mmix.c (mmix_elf_perform_relocation, mmix_elf_reloc, mmix_elf_relocate_section, mmix_elf_final_link, mmix_set_relaxable_size, _bfd_mmix_after_linker_allocation, mmix_elf_relax_section, mmix_elf_get_section_contents): .. * elf64-ppc.c (ppc64_elf_object_p, ppc64_elf_grok_prstatus, ppc64_elf_check_relocs, ppc64_elf_func_desc_adjust, ppc64_elf_adjust_dynamic_symbol, ppc64_elf_edit_opd, allocate_dynrelocs, ppc64_elf_size_dynamic_sections, ppc_build_one_stub, ppc_size_one_stub, ppc64_elf_next_toc_section, toc_adjusting_stub_needed, group_sections, ppc64_elf_size_stubs, ppc64_elf_build_stubs, ppc64_elf_relocate_section, ppc64_elf_finish_dynamic_sections): .. * elf64-s390.c (s390_elf_ldisp_reloc, elf_s390_adjust_dynamic_symbol, allocate_dynrelocs, elf_s390_size_dynamic_sections, elf_s390_finish_dynamic_sections): .. * elf64-sh64.c (sh_elf64_get_relocated_section_contents, sh_elf64_check_relocs, sh64_elf64_adjust_dynamic_symbol, sh64_elf64_discard_copies, sh64_elf64_size_dynamic_sections, sh64_elf64_finish_dynamic_sections): .. * elf64-sparc.c (sparc64_elf_slurp_reloc_table, init_insn_reloc, sparc64_elf_check_relocs, sparc64_elf_adjust_dynamic_symbol, sparc64_elf_size_dynamic_sections, sparc64_elf_relocate_section, sparc64_elf_finish_dynamic_symbol, sparc64_elf_finish_dynamic_sections): .. * elf64-x86-64.c (elf64_x86_64_grok_prstatus, elf64_x86_64_adjust_dynamic_symbol, allocate_dynrelocs, elf64_x86_64_size_dynamic_sections, elf64_x86_64_relocate_section, elf64_x86_64_finish_dynamic_sections): .. * elfarm-nabi.c (elf32_arm_nabi_grok_prstatus): .. * elfcode.h (elf_slurp_reloc_table): .. * elflink.c (_bfd_elf_create_got_section, elf_add_dt_needed_tag, elf_finalize_dynstr, elf_link_add_object_symbols, bfd_elf_size_dynamic_sections, elf_link_sort_relocs, elf_link_input_bfd, bfd_elf_final_link, bfd_elf_discard_info): .. * elfn32-mips.c (gprel32_with_gp, mips16_gprel_reloc, elf32_mips_grok_prstatus): .. * elfxx-ia64.c (elfNN_ia64_relax_section, allocate_dynrel_entries, elfNN_ia64_size_dynamic_sections, elfNN_ia64_install_dyn_reloc, elfNN_ia64_choose_gp, elfNN_ia64_final_link, elfNN_ia64_finish_dynamic_sections): .. * elfxx-mips.c (mips_elf_create_procedure_table, mips_elf_check_mips16_stubs, _bfd_mips_elf_gprel16_with_gp, _bfd_mips_elf_hi16_reloc, _bfd_mips_elf_generic_reloc, mips_elf_global_got_index, mips_elf_multi_got, mips_elf_create_compact_rel_section, mips_elf_calculate_relocation, mips_elf_allocate_dynamic_relocations, mips_elf_create_dynamic_relocation, _bfd_mips_elf_fake_sections, _bfd_mips_relax_section, _bfd_mips_elf_adjust_dynamic_symbol, _bfd_mips_elf_always_size_sections, _bfd_mips_elf_size_dynamic_sections, _bfd_mips_elf_finish_dynamic_symbol, _bfd_mips_elf_finish_dynamic_sections, _bfd_mips_elf_modify_segment_map, _bfd_mips_elf_discard_info, _bfd_mips_elf_write_section, _bfd_mips_elf_set_section_contents, _bfd_elf_mips_get_relocated_section_contents, _bfd_mips_elf_final_link, _bfd_mips_elf_merge_private_bfd_data): .. * hp300hpux.c (callback): .. * hppabsd-core.c (make_bfd_asection): .. * hpux-core.c (make_bfd_asection): .. * i386linux.c (linux_link_create_dynamic_sections, bfd_i386linux_size_dynamic_sections, linux_finish_dynamic_link): .. * i386msdos.c (msdos_write_object_contents): .. * i386os9k.c (os9k_callback, os9k_write_object_contents, os9k_set_section_contents): .. * ieee.c (parse_expression, ieee_slurp_external_symbols, ieee_slurp_sections, ieee_slurp_debug, ieee_slurp_section_data, ieee_write_section_part, do_with_relocs, do_as_repeat, do_without_relocs, ieee_write_debug_part, init_for_output, ieee_set_section_contents): .. * ihex.c (ihex_scan, ihex_read_section, ihex_get_section_contents): .. * irix-core.c (do_sections, make_bfd_asection): .. * libaout.h (aout_section_merge_with_text_p): .. * libbfd.c (_bfd_generic_get_section_contents, _bfd_generic_get_section_contents_in_window): .. * linker.c (default_indirect_link_order): .. * lynx-core.c (make_bfd_asection): .. * m68klinux.c (linux_link_create_dynamic_sections, bfd_m68klinux_size_dynamic_sections, linux_finish_dynamic_link): .. * mach-o.c (bfd_mach_o_make_bfd_section, bfd_mach_o_scan_read_dylinker, bfd_mach_o_scan_read_dylib, bfd_mach_o_scan_read_thread, bfd_mach_o_scan_read_symtab, bfd_mach_o_scan_read_segment): .. * merge.c (_bfd_add_merge_section, record_section, merge_strings, _bfd_merge_sections): .. * mmo.c (mmo_find_sec_w_addr, mmo_get_spec_section, mmo_get_loc, mmo_map_set_sizes, mmo_canonicalize_symtab, mmo_internal_write_section, mmo_write_object_contents): .. * netbsd-core.c (netbsd_core_file_p): .. * nlm32-alpha.c (nlm_alpha_read_reloc, nlm_alpha_write_import, nlm_alpha_set_public_section): .. * nlm32-ppc.c (nlm_powerpc_read_reloc, nlm_powerpc_write_reloc): .. * nlm32-sparc.c (nlm_sparc_write_import): .. * nlmcode.h (add_bfd_section, nlm_swap_auxiliary_headers_in, nlm_compute_section_file_positions): .. * oasys.c (oasys_object_p, oasys_slurp_section_data, oasys_write_sections, oasys_write_data, oasys_set_section_contents): .. * opncls.c (get_debug_link_info): .. * osf-core.c (make_bfd_asection): .. * pdp11.c (some_aout_object_p, adjust_o_magic, adjust_z_magic, adjust_n_magic, adjust_sizes_and_vmas, squirt_out_relocs, final_link, aout_link_input_section): .. * peXXigen.c (_bfd_XXi_swap_sym_in, _bfd_XXi_swap_aouthdr_out, pe_print_idata, pe_print_edata, pe_print_pdata, pe_print_reloc): .. * pef.c (bfd_pef_make_bfd_section, bfd_pef_print_loader_section, bfd_pef_scan_start_address, bfd_pef_parse_symbols): .. * ppcboot.c (ppcboot_object_p, ppcboot_canonicalize_symtab): .. * ptrace-core.c (ptrace_unix_core_file_p): .. * reloc.c (bfd_perform_relocation, bfd_install_relocation, _bfd_final_link_relocate, bfd_generic_relax_section, bfd_generic_get_relocated_section_contents): .. * reloc16.c (bfd_coff_reloc16_relax_section, bfd_coff_reloc16_get_relocated_section_c): .. * riscix.c (riscix_some_aout_object_p): .. * rs6000-core.c (read_hdr, make_bfd_asection): .. * sco5-core.c (make_bfd_asection): .. * simple.c (bfd_simple_get_relocated_section_contents): .. * som.c (som_object_setup, setup_sections, som_prep_headers, som_write_fixups, som_begin_writing, bfd_section_from_som_symbol, som_set_reloc_info, som_get_section_contents, som_bfd_link_split_section): .. * sparclinux.c (linux_link_create_dynamic_sections, bfd_sparclinux_size_dynamic_sections, linux_finish_dynamic_link): .. * srec.c (srec_scan, srec_read_section, srec_get_section_contents): .. * stabs.c (_bfd_link_section_stabs, _bfd_discard_section_stabs, _bfd_write_stab_strings, _bfd_stab_section_offset): .. * sunos.c (sunos_read_dynamic_info, sunos_create_dynamic_sections, bfd_sunos_size_dynamic_sections, sunos_scan_std_relocs, sunos_scan_ext_relocs, sunos_scan_dynamic_symbol, sunos_write_dynamic_symbol, sunos_check_dynamic_reloc, sunos_finish_dynamic_link): .. * syms.c (_bfd_stab_section_find_nearest_line): .. * tekhex.c (first_phase, tekhex_set_section_contents, tekhex_write_object_contents): .. * trad-core.c (trad_unix_core_file_p): .. * versados.c (process_esd, process_otr, process_otr): .. * vms-gsd.c (_bfd_vms_slurp_gsd, _bfd_vms_write_gsd): .. * vms-misc.c (add_new_contents): .. * vms-tir.c (check_section, new_section, _bfd_vms_write_tir): .. * vms.c (vms_set_section_contents): .. * xcofflink.c (xcoff_get_section_contents, xcoff_link_add_symbols, xcoff_sweep, bfd_xcoff_size_dynamic_sections, xcoff_build_ldsyms, _bfd_xcoff_bfd_final_link, xcoff_link_input_bfd): .. * xsym.c (bfd_sym_scan): .. See above. binutils/ * objcopy.c (copy_section): Don't set _cooked_size. include/ * bfdlink.h (struct bfd_link_order): Update comment. ld/ * ldlang.c (print_output_section_statement): Don't print size before relaxation. (IGNORE_SECTION): Remove bfd arg. Update all callers. * ldexp.c (fold_name): .. See below. * ldlang.c (section_already_linked, print_output_section_statement, print_input_section, insert_pad, size_input_section, lang_check_section_addresses, lang_size_sections_1, lang_size_sections, lang_do_assignments_1, lang_set_startof, lang_one_common, lang_reset_memory_regions, lang_process, lang_abs_symbol_at_end_of, lang_do_version_exports_section): .. * ldwrite.c (build_link_order, clone_section, ds, split_sections): .. * pe-dll.c (process_def_file, generate_reloc): .. * emultempl/elf32.em (gld${EMULATION_NAME}_find_statement_assignment, gld${EMULATION_NAME}_before_allocation): .. * emultempl/mmix-elfnmmo.em (mmix_after_allocation): .. * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation, sh64_elf_${EMULATION_NAME}_after_allocation): .. * emultempl/sunos.em (gld${EMULATION_NAME}_before_allocation): .. * emultempl/xtensaelf.em (ld_assign_relative_paged_dot, ld_local_file_relocations_fit, ld_xtensa_insert_page_offsets): Use "size" instead of "_raw_size" and "_cooked_size". Expand bfd_section_size macro invocations.
1568 lines
46 KiB
C
1568 lines
46 KiB
C
/* BFD back-end for Renesas H8/300 ELF binaries.
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Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
||
#include "bfd.h"
|
||
#include "sysdep.h"
|
||
#include "libbfd.h"
|
||
#include "elf-bfd.h"
|
||
#include "elf/h8.h"
|
||
|
||
static reloc_howto_type *elf32_h8_reloc_type_lookup
|
||
(bfd *abfd, bfd_reloc_code_real_type code);
|
||
static void elf32_h8_info_to_howto
|
||
(bfd *, arelent *, Elf_Internal_Rela *);
|
||
static void elf32_h8_info_to_howto_rel
|
||
(bfd *, arelent *, Elf_Internal_Rela *);
|
||
static unsigned long elf32_h8_mach (flagword);
|
||
static void elf32_h8_final_write_processing (bfd *, bfd_boolean);
|
||
static bfd_boolean elf32_h8_object_p (bfd *);
|
||
static bfd_boolean elf32_h8_merge_private_bfd_data (bfd *, bfd *);
|
||
static bfd_boolean elf32_h8_relax_section
|
||
(bfd *, asection *, struct bfd_link_info *, bfd_boolean *);
|
||
static bfd_boolean elf32_h8_relax_delete_bytes
|
||
(bfd *, asection *, bfd_vma, int);
|
||
static bfd_boolean elf32_h8_symbol_address_p (bfd *, asection *, bfd_vma);
|
||
static bfd_byte *elf32_h8_get_relocated_section_contents
|
||
(bfd *, struct bfd_link_info *, struct bfd_link_order *,
|
||
bfd_byte *, bfd_boolean, asymbol **);
|
||
static asection *elf32_h8_gc_mark_hook
|
||
(asection *, struct bfd_link_info *, Elf_Internal_Rela *,
|
||
struct elf_link_hash_entry *, Elf_Internal_Sym *);
|
||
static bfd_boolean elf32_h8_gc_sweep_hook
|
||
(bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
|
||
static bfd_reloc_status_type elf32_h8_final_link_relocate
|
||
(unsigned long, bfd *, bfd *, asection *,
|
||
bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
|
||
struct bfd_link_info *, asection *, int);
|
||
static bfd_boolean elf32_h8_relocate_section
|
||
(bfd *, struct bfd_link_info *, bfd *, asection *,
|
||
bfd_byte *, Elf_Internal_Rela *,
|
||
Elf_Internal_Sym *, asection **);
|
||
static bfd_reloc_status_type special
|
||
(bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **);
|
||
|
||
/* This does not include any relocation information, but should be
|
||
good enough for GDB or objdump to read the file. */
|
||
|
||
static reloc_howto_type h8_elf_howto_table[] = {
|
||
#define R_H8_NONE_X 0
|
||
HOWTO (R_H8_NONE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_NONE", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR32_X (R_H8_NONE_X + 1)
|
||
HOWTO (R_H8_DIR32, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR32", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR16_X (R_H8_DIR32_X + 1)
|
||
HOWTO (R_H8_DIR16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR8_X (R_H8_DIR16_X + 1)
|
||
HOWTO (R_H8_DIR8, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x000000ff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR16A8_X (R_H8_DIR8_X + 1)
|
||
HOWTO (R_H8_DIR16A8, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR16A8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1)
|
||
HOWTO (R_H8_DIR16R8, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR16R8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1)
|
||
HOWTO (R_H8_DIR24A8, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
24, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR24A8", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xff000000, /* src_mask */
|
||
0x00ffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1)
|
||
HOWTO (R_H8_DIR24R8, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
24, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR24R8", /* name */
|
||
TRUE, /* partial_inplace */
|
||
0xff000000, /* src_mask */
|
||
0x00ffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1)
|
||
HOWTO (R_H8_DIR32A16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
FALSE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_DIR32A16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
FALSE), /* pcrel_offset */
|
||
#define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1)
|
||
HOWTO (R_H8_PCREL16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_PCREL16", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
#define R_H8_PCREL8_X (R_H8_PCREL16_X + 1)
|
||
HOWTO (R_H8_PCREL8, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
8, /* bitsize */
|
||
TRUE, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed,/* complain_on_overflow */
|
||
special, /* special_function */
|
||
"R_H8_PCREL8", /* name */
|
||
FALSE, /* partial_inplace */
|
||
0xff, /* src_mask */
|
||
0xff, /* dst_mask */
|
||
TRUE), /* pcrel_offset */
|
||
};
|
||
|
||
/* This structure is used to map BFD reloc codes to H8 ELF relocs. */
|
||
|
||
struct elf_reloc_map {
|
||
bfd_reloc_code_real_type bfd_reloc_val;
|
||
unsigned char howto_index;
|
||
};
|
||
|
||
/* An array mapping BFD reloc codes to H8 ELF relocs. */
|
||
|
||
static const struct elf_reloc_map h8_reloc_map[] = {
|
||
{ BFD_RELOC_NONE, R_H8_NONE_X },
|
||
{ BFD_RELOC_32, R_H8_DIR32_X },
|
||
{ BFD_RELOC_16, R_H8_DIR16_X },
|
||
{ BFD_RELOC_8, R_H8_DIR8_X },
|
||
{ BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X },
|
||
{ BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X },
|
||
{ BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X },
|
||
{ BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X },
|
||
{ BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X },
|
||
{ BFD_RELOC_16_PCREL, R_H8_PCREL16_X },
|
||
{ BFD_RELOC_8_PCREL, R_H8_PCREL8_X },
|
||
};
|
||
|
||
|
||
static reloc_howto_type *
|
||
elf32_h8_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
||
bfd_reloc_code_real_type code)
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
||
{
|
||
if (h8_reloc_map[i].bfd_reloc_val == code)
|
||
return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index];
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
elf32_h8_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
|
||
Elf_Internal_Rela *elf_reloc)
|
||
{
|
||
unsigned int r;
|
||
unsigned int i;
|
||
|
||
r = ELF32_R_TYPE (elf_reloc->r_info);
|
||
for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++)
|
||
if (h8_elf_howto_table[i].type == r)
|
||
{
|
||
bfd_reloc->howto = &h8_elf_howto_table[i];
|
||
return;
|
||
}
|
||
abort ();
|
||
}
|
||
|
||
static void
|
||
elf32_h8_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
|
||
Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
|
||
{
|
||
unsigned int r;
|
||
|
||
abort ();
|
||
r = ELF32_R_TYPE (elf_reloc->r_info);
|
||
bfd_reloc->howto = &h8_elf_howto_table[r];
|
||
}
|
||
|
||
/* Special handling for H8/300 relocs.
|
||
We only come here for pcrel stuff and return normally if not an -r link.
|
||
When doing -r, we can't do any arithmetic for the pcrel stuff, because
|
||
we support relaxing on the H8/300 series chips. */
|
||
static bfd_reloc_status_type
|
||
special (bfd *abfd ATTRIBUTE_UNUSED,
|
||
arelent *reloc_entry ATTRIBUTE_UNUSED,
|
||
asymbol *symbol ATTRIBUTE_UNUSED,
|
||
PTR data ATTRIBUTE_UNUSED,
|
||
asection *input_section ATTRIBUTE_UNUSED,
|
||
bfd *output_bfd,
|
||
char **error_message ATTRIBUTE_UNUSED)
|
||
{
|
||
if (output_bfd == (bfd *) NULL)
|
||
return bfd_reloc_continue;
|
||
|
||
/* Adjust the reloc address to that in the output section. */
|
||
reloc_entry->address += input_section->output_offset;
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
/* Perform a relocation as part of a final link. */
|
||
static bfd_reloc_status_type
|
||
elf32_h8_final_link_relocate (unsigned long r_type, bfd *input_bfd,
|
||
bfd *output_bfd ATTRIBUTE_UNUSED,
|
||
asection *input_section ATTRIBUTE_UNUSED,
|
||
bfd_byte *contents, bfd_vma offset,
|
||
bfd_vma value, bfd_vma addend,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
asection *sym_sec ATTRIBUTE_UNUSED,
|
||
int is_local ATTRIBUTE_UNUSED)
|
||
{
|
||
bfd_byte *hit_data = contents + offset;
|
||
|
||
switch (r_type)
|
||
{
|
||
case R_H8_NONE:
|
||
return bfd_reloc_ok;
|
||
|
||
case R_H8_DIR32:
|
||
case R_H8_DIR32A16:
|
||
case R_H8_DIR24A8:
|
||
value += addend;
|
||
bfd_put_32 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
case R_H8_DIR16:
|
||
case R_H8_DIR16A8:
|
||
case R_H8_DIR16R8:
|
||
value += addend;
|
||
bfd_put_16 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
/* AKA R_RELBYTE */
|
||
case R_H8_DIR8:
|
||
value += addend;
|
||
|
||
bfd_put_8 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
case R_H8_DIR24R8:
|
||
value += addend;
|
||
|
||
/* HIT_DATA is the address for the first byte for the relocated
|
||
value. Subtract 1 so that we can manipulate the data in 32-bit
|
||
hunks. */
|
||
hit_data--;
|
||
|
||
/* Clear out the top byte in value. */
|
||
value &= 0xffffff;
|
||
|
||
/* Retrieve the type byte for value from the section contents. */
|
||
value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
|
||
|
||
/* Now scribble it out in one 32-bit hunk. */
|
||
bfd_put_32 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
case R_H8_PCREL16:
|
||
value -= (input_section->output_section->vma
|
||
+ input_section->output_offset);
|
||
value -= offset;
|
||
value += addend;
|
||
|
||
/* The value is relative to the start of the instruction,
|
||
not the relocation offset. Subtract 2 to account for
|
||
this minor issue. */
|
||
value -= 2;
|
||
|
||
bfd_put_16 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
case R_H8_PCREL8:
|
||
value -= (input_section->output_section->vma
|
||
+ input_section->output_offset);
|
||
value -= offset;
|
||
value += addend;
|
||
|
||
/* The value is relative to the start of the instruction,
|
||
not the relocation offset. Subtract 1 to account for
|
||
this minor issue. */
|
||
value -= 1;
|
||
|
||
bfd_put_8 (input_bfd, value, hit_data);
|
||
return bfd_reloc_ok;
|
||
|
||
default:
|
||
return bfd_reloc_notsupported;
|
||
}
|
||
}
|
||
|
||
/* Relocate an H8 ELF section. */
|
||
static bfd_boolean
|
||
elf32_h8_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
|
||
bfd *input_bfd, asection *input_section,
|
||
bfd_byte *contents, Elf_Internal_Rela *relocs,
|
||
Elf_Internal_Sym *local_syms,
|
||
asection **local_sections)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
Elf_Internal_Rela *rel, *relend;
|
||
|
||
if (info->relocatable)
|
||
return TRUE;
|
||
|
||
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (input_bfd);
|
||
|
||
rel = relocs;
|
||
relend = relocs + input_section->reloc_count;
|
||
for (; rel < relend; rel++)
|
||
{
|
||
unsigned int r_type;
|
||
unsigned long r_symndx;
|
||
Elf_Internal_Sym *sym;
|
||
asection *sec;
|
||
struct elf_link_hash_entry *h;
|
||
bfd_vma relocation;
|
||
bfd_reloc_status_type r;
|
||
|
||
/* This is a final link. */
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
h = NULL;
|
||
sym = NULL;
|
||
sec = NULL;
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
{
|
||
sym = local_syms + r_symndx;
|
||
sec = local_sections[r_symndx];
|
||
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
||
}
|
||
else
|
||
{
|
||
bfd_boolean unresolved_reloc, warned;
|
||
|
||
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
||
r_symndx, symtab_hdr, sym_hashes,
|
||
h, sec, relocation,
|
||
unresolved_reloc, warned);
|
||
}
|
||
|
||
r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
|
||
input_section,
|
||
contents, rel->r_offset,
|
||
relocation, rel->r_addend,
|
||
info, sec, h == NULL);
|
||
|
||
if (r != bfd_reloc_ok)
|
||
{
|
||
const char *name;
|
||
const char *msg = (const char *) 0;
|
||
arelent bfd_reloc;
|
||
reloc_howto_type *howto;
|
||
|
||
elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel);
|
||
howto = bfd_reloc.howto;
|
||
|
||
if (h != NULL)
|
||
name = h->root.root.string;
|
||
else
|
||
{
|
||
name = (bfd_elf_string_from_elf_section
|
||
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
||
if (name == NULL || *name == '\0')
|
||
name = bfd_section_name (input_bfd, sec);
|
||
}
|
||
|
||
switch (r)
|
||
{
|
||
case bfd_reloc_overflow:
|
||
if (! ((*info->callbacks->reloc_overflow)
|
||
(info, name, howto->name, (bfd_vma) 0,
|
||
input_bfd, input_section, rel->r_offset)))
|
||
return FALSE;
|
||
break;
|
||
|
||
case bfd_reloc_undefined:
|
||
if (! ((*info->callbacks->undefined_symbol)
|
||
(info, name, input_bfd, input_section,
|
||
rel->r_offset, TRUE)))
|
||
return FALSE;
|
||
break;
|
||
|
||
case bfd_reloc_outofrange:
|
||
msg = _("internal error: out of range error");
|
||
goto common_error;
|
||
|
||
case bfd_reloc_notsupported:
|
||
msg = _("internal error: unsupported relocation error");
|
||
goto common_error;
|
||
|
||
case bfd_reloc_dangerous:
|
||
msg = _("internal error: dangerous error");
|
||
goto common_error;
|
||
|
||
default:
|
||
msg = _("internal error: unknown error");
|
||
/* fall through */
|
||
|
||
common_error:
|
||
if (!((*info->callbacks->warning)
|
||
(info, msg, name, input_bfd, input_section,
|
||
rel->r_offset)))
|
||
return FALSE;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Object files encode the specific H8 model they were compiled
|
||
for in the ELF flags field.
|
||
|
||
Examine that field and return the proper BFD machine type for
|
||
the object file. */
|
||
static unsigned long
|
||
elf32_h8_mach (flagword flags)
|
||
{
|
||
switch (flags & EF_H8_MACH)
|
||
{
|
||
case E_H8_MACH_H8300:
|
||
default:
|
||
return bfd_mach_h8300;
|
||
|
||
case E_H8_MACH_H8300H:
|
||
return bfd_mach_h8300h;
|
||
|
||
case E_H8_MACH_H8300S:
|
||
return bfd_mach_h8300s;
|
||
|
||
case E_H8_MACH_H8300HN:
|
||
return bfd_mach_h8300hn;
|
||
|
||
case E_H8_MACH_H8300SN:
|
||
return bfd_mach_h8300sn;
|
||
|
||
case E_H8_MACH_H8300SX:
|
||
return bfd_mach_h8300sx;
|
||
|
||
case E_H8_MACH_H8300SXN:
|
||
return bfd_mach_h8300sxn;
|
||
}
|
||
}
|
||
|
||
/* The final processing done just before writing out a H8 ELF object
|
||
file. We use this opportunity to encode the BFD machine type
|
||
into the flags field in the object file. */
|
||
|
||
static void
|
||
elf32_h8_final_write_processing (bfd *abfd,
|
||
bfd_boolean linker ATTRIBUTE_UNUSED)
|
||
{
|
||
unsigned long val;
|
||
|
||
switch (bfd_get_mach (abfd))
|
||
{
|
||
default:
|
||
case bfd_mach_h8300:
|
||
val = E_H8_MACH_H8300;
|
||
break;
|
||
|
||
case bfd_mach_h8300h:
|
||
val = E_H8_MACH_H8300H;
|
||
break;
|
||
|
||
case bfd_mach_h8300s:
|
||
val = E_H8_MACH_H8300S;
|
||
break;
|
||
|
||
case bfd_mach_h8300hn:
|
||
val = E_H8_MACH_H8300HN;
|
||
break;
|
||
|
||
case bfd_mach_h8300sn:
|
||
val = E_H8_MACH_H8300SN;
|
||
break;
|
||
|
||
case bfd_mach_h8300sx:
|
||
val = E_H8_MACH_H8300SX;
|
||
break;
|
||
|
||
case bfd_mach_h8300sxn:
|
||
val = E_H8_MACH_H8300SXN;
|
||
break;
|
||
}
|
||
|
||
elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH);
|
||
elf_elfheader (abfd)->e_flags |= val;
|
||
}
|
||
|
||
/* Return nonzero if ABFD represents a valid H8 ELF object file; also
|
||
record the encoded machine type found in the ELF flags. */
|
||
|
||
static bfd_boolean
|
||
elf32_h8_object_p (bfd *abfd)
|
||
{
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_h8300,
|
||
elf32_h8_mach (elf_elfheader (abfd)->e_flags));
|
||
return TRUE;
|
||
}
|
||
|
||
/* Merge backend specific data from an object file to the output
|
||
object file when linking. The only data we need to copy at this
|
||
time is the architecture/machine information. */
|
||
|
||
static bfd_boolean
|
||
elf32_h8_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
|
||
{
|
||
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
||
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
||
return TRUE;
|
||
|
||
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
|
||
&& bfd_get_mach (obfd) < bfd_get_mach (ibfd))
|
||
{
|
||
if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
|
||
bfd_get_mach (ibfd)))
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* This function handles relaxing for the H8..
|
||
|
||
There are a few relaxing opportunities available on the H8:
|
||
|
||
jmp/jsr:24 -> bra/bsr:8 2 bytes
|
||
The jmp may be completely eliminated if the previous insn is a
|
||
conditional branch to the insn after the jump. In that case
|
||
we invert the branch and delete the jump and save 4 bytes.
|
||
|
||
bCC:16 -> bCC:8 2 bytes
|
||
bsr:16 -> bsr:8 2 bytes
|
||
|
||
bset:16 -> bset:8 2 bytes
|
||
bset:24/32 -> bset:8 4 bytes
|
||
(also applicable to other bit manipulation instructions)
|
||
|
||
mov.b:16 -> mov.b:8 2 bytes
|
||
mov.b:24/32 -> mov.b:8 4 bytes
|
||
|
||
bset:24/32 -> bset:16 2 bytes
|
||
(also applicable to other bit manipulation instructions)
|
||
|
||
mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */
|
||
|
||
static bfd_boolean
|
||
elf32_h8_relax_section (bfd *abfd, asection *sec,
|
||
struct bfd_link_info *link_info, bfd_boolean *again)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
Elf_Internal_Rela *internal_relocs;
|
||
Elf_Internal_Rela *irel, *irelend;
|
||
bfd_byte *contents = NULL;
|
||
Elf_Internal_Sym *isymbuf = NULL;
|
||
static asection *last_input_section = NULL;
|
||
static Elf_Internal_Rela *last_reloc = NULL;
|
||
|
||
/* Assume nothing changes. */
|
||
*again = FALSE;
|
||
|
||
/* We don't have to do anything for a relocatable link, if
|
||
this section does not have relocs, or if this is not a
|
||
code section. */
|
||
if (link_info->relocatable
|
||
|| (sec->flags & SEC_RELOC) == 0
|
||
|| sec->reloc_count == 0
|
||
|| (sec->flags & SEC_CODE) == 0)
|
||
return TRUE;
|
||
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
|
||
/* Get a copy of the native relocations. */
|
||
internal_relocs = (_bfd_elf_link_read_relocs
|
||
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
||
link_info->keep_memory));
|
||
if (internal_relocs == NULL)
|
||
goto error_return;
|
||
|
||
if (sec != last_input_section)
|
||
last_reloc = NULL;
|
||
|
||
last_input_section = sec;
|
||
|
||
/* Walk through the relocs looking for relaxing opportunities. */
|
||
irelend = internal_relocs + sec->reloc_count;
|
||
for (irel = internal_relocs; irel < irelend; irel++)
|
||
{
|
||
bfd_vma symval;
|
||
|
||
/* Keep track of the previous reloc so that we can delete
|
||
some long jumps created by the compiler. */
|
||
if (irel != internal_relocs)
|
||
last_reloc = irel - 1;
|
||
|
||
if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8
|
||
&& ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16
|
||
&& ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8
|
||
&& ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8
|
||
&& ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16)
|
||
continue;
|
||
|
||
/* Get the section contents if we haven't done so already. */
|
||
if (contents == NULL)
|
||
{
|
||
/* Get cached copy if it exists. */
|
||
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
||
contents = elf_section_data (sec)->this_hdr.contents;
|
||
else
|
||
{
|
||
/* Go get them off disk. */
|
||
if (!bfd_malloc_and_get_section (abfd, sec, &contents))
|
||
goto error_return;
|
||
}
|
||
}
|
||
|
||
/* Read this BFD's local symbols if we haven't done so already. */
|
||
if (isymbuf == NULL && symtab_hdr->sh_info != 0)
|
||
{
|
||
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
||
if (isymbuf == NULL)
|
||
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
||
symtab_hdr->sh_info, 0,
|
||
NULL, NULL, NULL);
|
||
if (isymbuf == NULL)
|
||
goto error_return;
|
||
}
|
||
|
||
/* Get the value of the symbol referred to by the reloc. */
|
||
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
||
{
|
||
/* A local symbol. */
|
||
Elf_Internal_Sym *isym;
|
||
asection *sym_sec;
|
||
|
||
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
||
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
||
symval = isym->st_value;
|
||
/* If the reloc is absolute, it will not have
|
||
a symbol or section associated with it. */
|
||
if (sym_sec)
|
||
symval += sym_sec->output_section->vma
|
||
+ sym_sec->output_offset;
|
||
}
|
||
else
|
||
{
|
||
unsigned long indx;
|
||
struct elf_link_hash_entry *h;
|
||
|
||
/* An external symbol. */
|
||
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
|
||
h = elf_sym_hashes (abfd)[indx];
|
||
BFD_ASSERT (h != NULL);
|
||
if (h->root.type != bfd_link_hash_defined
|
||
&& h->root.type != bfd_link_hash_defweak)
|
||
{
|
||
/* This appears to be a reference to an undefined
|
||
symbol. Just ignore it--it will be caught by the
|
||
regular reloc processing. */
|
||
continue;
|
||
}
|
||
|
||
symval = (h->root.u.def.value
|
||
+ h->root.u.def.section->output_section->vma
|
||
+ h->root.u.def.section->output_offset);
|
||
}
|
||
|
||
/* For simplicity of coding, we are going to modify the section
|
||
contents, the section relocs, and the BFD symbol table. We
|
||
must tell the rest of the code not to free up this
|
||
information. It would be possible to instead create a table
|
||
of changes which have to be made, as is done in coff-mips.c;
|
||
that would be more work, but would require less memory when
|
||
the linker is run. */
|
||
switch (ELF32_R_TYPE (irel->r_info))
|
||
{
|
||
/* Try to turn a 24-bit absolute branch/call into an 8-bit
|
||
pc-relative branch/call. */
|
||
case R_H8_DIR24R8:
|
||
{
|
||
bfd_vma value = symval + irel->r_addend;
|
||
bfd_vma dot, gap;
|
||
|
||
/* Get the address of this instruction. */
|
||
dot = (sec->output_section->vma
|
||
+ sec->output_offset + irel->r_offset - 1);
|
||
|
||
/* Compute the distance from this insn to the branch target. */
|
||
gap = value - dot;
|
||
|
||
/* If the distance is within -126..+130 inclusive, then we can
|
||
relax this jump. +130 is valid since the target will move
|
||
two bytes closer if we do relax this branch. */
|
||
if ((int) gap >= -126 && (int) gap <= 130)
|
||
{
|
||
unsigned char code;
|
||
|
||
/* Note that we've changed the relocs, section contents,
|
||
etc. */
|
||
elf_section_data (sec)->relocs = internal_relocs;
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
|
||
/* Get the instruction code being relaxed. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
||
|
||
/* If the previous instruction conditionally jumped around
|
||
this instruction, we may be able to reverse the condition
|
||
and redirect the previous instruction to the target of
|
||
this instruction.
|
||
|
||
Such sequences are used by the compiler to deal with
|
||
long conditional branches.
|
||
|
||
Only perform this optimisation for jumps (code 0x5a) not
|
||
subroutine calls, as otherwise it could transform:
|
||
|
||
mov.w r0,r0
|
||
beq .L1
|
||
jsr @_bar
|
||
.L1: rts
|
||
_bar: rts
|
||
into:
|
||
mov.w r0,r0
|
||
bne _bar
|
||
rts
|
||
_bar: rts
|
||
|
||
which changes the call (jsr) into a branch (bne). */
|
||
if (code == 0x5a
|
||
&& (int) gap <= 130
|
||
&& (int) gap >= -128
|
||
&& last_reloc
|
||
&& ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8
|
||
&& ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info)
|
||
{
|
||
bfd_vma last_value;
|
||
asection *last_sym_sec;
|
||
Elf_Internal_Sym *last_sym;
|
||
|
||
/* We will need to examine the symbol used by the
|
||
previous relocation. */
|
||
|
||
last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info);
|
||
last_sym_sec
|
||
= bfd_section_from_elf_index (abfd, last_sym->st_shndx);
|
||
last_value = (last_sym->st_value
|
||
+ last_sym_sec->output_section->vma
|
||
+ last_sym_sec->output_offset);
|
||
|
||
/* Verify that the previous relocation was for a
|
||
branch around this instruction and that no symbol
|
||
exists at the current location. */
|
||
if (last_value == dot + 4
|
||
&& last_reloc->r_offset + 2 == irel->r_offset
|
||
&& ! elf32_h8_symbol_address_p (abfd, sec, dot))
|
||
{
|
||
/* We can eliminate this jump. Twiddle the
|
||
previous relocation as necessary. */
|
||
irel->r_info
|
||
= ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
ELF32_R_TYPE (R_H8_NONE));
|
||
|
||
last_reloc->r_info
|
||
= ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
ELF32_R_TYPE (R_H8_PCREL8));
|
||
last_reloc->r_addend = irel->r_addend;
|
||
|
||
code = bfd_get_8 (abfd,
|
||
contents + last_reloc->r_offset - 1);
|
||
code ^= 1;
|
||
bfd_put_8 (abfd,
|
||
code,
|
||
contents + last_reloc->r_offset - 1);
|
||
|
||
/* Delete four bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset - 1,
|
||
4))
|
||
goto error_return;
|
||
|
||
*again = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (code == 0x5e)
|
||
/* This is jsr. */
|
||
bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1);
|
||
else if (code == 0x5a)
|
||
/* This is jmp. */
|
||
bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1);
|
||
else
|
||
abort ();
|
||
|
||
/* Fix the relocation's type. */
|
||
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
R_H8_PCREL8);
|
||
|
||
/* Delete two bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset + 1, 2))
|
||
goto error_return;
|
||
|
||
/* That will change things, so, we should relax again.
|
||
Note that this is not required, and it may be slow. */
|
||
*again = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* Try to turn a 16-bit pc-relative branch into a 8-bit pc-relative
|
||
branch. */
|
||
case R_H8_PCREL16:
|
||
{
|
||
bfd_vma value = symval + irel->r_addend;
|
||
bfd_vma dot;
|
||
bfd_vma gap;
|
||
|
||
/* Get the address of this instruction. */
|
||
dot = (sec->output_section->vma
|
||
+ sec->output_offset
|
||
+ irel->r_offset - 2);
|
||
|
||
gap = value - dot;
|
||
|
||
/* If the distance is within -126..+130 inclusive, then we can
|
||
relax this jump. +130 is valid since the target will move
|
||
two bytes closer if we do relax this branch. */
|
||
if ((int) gap >= -126 && (int) gap <= 130)
|
||
{
|
||
unsigned char code;
|
||
|
||
/* Note that we've changed the relocs, section contents,
|
||
etc. */
|
||
elf_section_data (sec)->relocs = internal_relocs;
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
|
||
/* Get the opcode. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
||
|
||
if (code == 0x58)
|
||
{
|
||
/* bCC:16 -> bCC:8 */
|
||
/* Get the second byte of the original insn, which
|
||
contains the condition code. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
||
|
||
/* Compute the fisrt byte of the relaxed
|
||
instruction. The original sequence 0x58 0xX0
|
||
is relaxed to 0x4X, where X represents the
|
||
condition code. */
|
||
code &= 0xf0;
|
||
code >>= 4;
|
||
code |= 0x40;
|
||
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
|
||
}
|
||
else if (code == 0x5c)
|
||
/* This is bsr. */
|
||
bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2);
|
||
else
|
||
abort ();
|
||
|
||
/* Fix the relocation's type. */
|
||
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
R_H8_PCREL8);
|
||
irel->r_offset--;
|
||
|
||
/* Delete two bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset + 1, 2))
|
||
goto error_return;
|
||
|
||
/* That will change things, so, we should relax again.
|
||
Note that this is not required, and it may be slow. */
|
||
*again = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* This is a 16-bit absolute address in one of the following
|
||
instructions:
|
||
|
||
"band", "bclr", "biand", "bild", "bior", "bist", "bixor",
|
||
"bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and
|
||
"mov.b"
|
||
|
||
We may relax this into an 8-bit absolute address if it's in
|
||
the right range. */
|
||
case R_H8_DIR16A8:
|
||
{
|
||
bfd_vma value;
|
||
|
||
value = bfd_h8300_pad_address (abfd, symval + irel->r_addend);
|
||
if (value >= 0xffffff00u)
|
||
{
|
||
unsigned char code;
|
||
unsigned char temp_code;
|
||
|
||
/* Note that we've changed the relocs, section contents,
|
||
etc. */
|
||
elf_section_data (sec)->relocs = internal_relocs;
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
|
||
/* Get the opcode. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
||
|
||
/* All instructions with R_H8_DIR16A8 start with
|
||
0x6a. */
|
||
if (code != 0x6a)
|
||
abort ();
|
||
|
||
temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
||
/* If this is a mov.b instruction, clear the lower
|
||
nibble, which contains the source/destination
|
||
register number. */
|
||
if ((temp_code & 0x10) != 0x10)
|
||
temp_code &= 0xf0;
|
||
|
||
switch (temp_code)
|
||
{
|
||
case 0x00:
|
||
/* This is mov.b @aa:16,Rd. */
|
||
bfd_put_8 (abfd, (code & 0xf) | 0x20,
|
||
contents + irel->r_offset - 2);
|
||
break;
|
||
case 0x80:
|
||
/* This is mov.b Rs,@aa:16. */
|
||
bfd_put_8 (abfd, (code & 0xf) | 0x30,
|
||
contents + irel->r_offset - 2);
|
||
break;
|
||
case 0x18:
|
||
/* This is a bit-maniputation instruction that
|
||
stores one bit into memory, one of "bclr",
|
||
"bist", "bnot", "bset", and "bst". */
|
||
bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2);
|
||
break;
|
||
case 0x10:
|
||
/* This is a bit-maniputation instruction that
|
||
loads one bit from memory, one of "band",
|
||
"biand", "bild", "bior", "bixor", "bld", "bor",
|
||
"btst", and "bxor". */
|
||
bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2);
|
||
break;
|
||
default:
|
||
abort ();
|
||
}
|
||
|
||
/* Fix the relocation's type. */
|
||
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
R_H8_DIR8);
|
||
|
||
/* Move the relocation. */
|
||
irel->r_offset--;
|
||
|
||
/* Delete two bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset + 1, 2))
|
||
goto error_return;
|
||
|
||
/* That will change things, so, we should relax again.
|
||
Note that this is not required, and it may be slow. */
|
||
*again = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* This is a 24-bit absolute address in one of the following
|
||
instructions:
|
||
|
||
"band", "bclr", "biand", "bild", "bior", "bist", "bixor",
|
||
"bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and
|
||
"mov.b"
|
||
|
||
We may relax this into an 8-bit absolute address if it's in
|
||
the right range. */
|
||
case R_H8_DIR24A8:
|
||
{
|
||
bfd_vma value;
|
||
|
||
value = bfd_h8300_pad_address (abfd, symval + irel->r_addend);
|
||
if (value >= 0xffffff00u)
|
||
{
|
||
unsigned char code;
|
||
unsigned char temp_code;
|
||
|
||
/* Note that we've changed the relocs, section contents,
|
||
etc. */
|
||
elf_section_data (sec)->relocs = internal_relocs;
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
|
||
/* Get the opcode. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
|
||
|
||
/* All instructions with R_H8_DIR24A8 start with
|
||
0x6a. */
|
||
if (code != 0x6a)
|
||
abort ();
|
||
|
||
temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
||
|
||
/* If this is a mov.b instruction, clear the lower
|
||
nibble, which contains the source/destination
|
||
register number. */
|
||
if ((temp_code & 0x30) != 0x30)
|
||
temp_code &= 0xf0;
|
||
|
||
switch (temp_code)
|
||
{
|
||
case 0x20:
|
||
/* This is mov.b @aa:24/32,Rd. */
|
||
bfd_put_8 (abfd, (code & 0xf) | 0x20,
|
||
contents + irel->r_offset - 2);
|
||
break;
|
||
case 0xa0:
|
||
/* This is mov.b Rs,@aa:24/32. */
|
||
bfd_put_8 (abfd, (code & 0xf) | 0x30,
|
||
contents + irel->r_offset - 2);
|
||
break;
|
||
case 0x38:
|
||
/* This is a bit-maniputation instruction that
|
||
stores one bit into memory, one of "bclr",
|
||
"bist", "bnot", "bset", and "bst". */
|
||
bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2);
|
||
break;
|
||
case 0x30:
|
||
/* This is a bit-maniputation instruction that
|
||
loads one bit from memory, one of "band",
|
||
"biand", "bild", "bior", "bixor", "bld", "bor",
|
||
"btst", and "bxor". */
|
||
bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2);
|
||
break;
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
/* Fix the relocation's type. */
|
||
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
R_H8_DIR8);
|
||
irel->r_offset--;
|
||
|
||
/* Delete two bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset + 1, 4))
|
||
goto error_return;
|
||
|
||
/* That will change things, so, we should relax again.
|
||
Note that this is not required, and it may be slow. */
|
||
*again = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Fall through. */
|
||
|
||
/* This is a 24-/32-bit absolute address in one of the
|
||
following instructions:
|
||
|
||
"band", "bclr", "biand", "bild", "bior", "bist",
|
||
"bixor", "bld", "bnot", "bor", "bset", "bst", "btst",
|
||
"bxor", "ldc.w", "stc.w" and "mov.[bwl]"
|
||
|
||
We may relax this into an 16-bit absolute address if it's
|
||
in the right range. */
|
||
case R_H8_DIR32A16:
|
||
{
|
||
bfd_vma value;
|
||
|
||
value = bfd_h8300_pad_address (abfd, symval + irel->r_addend);
|
||
if (value <= 0x7fff || value >= 0xffff8000u)
|
||
{
|
||
unsigned char code;
|
||
|
||
/* Note that we've changed the relocs, section contents,
|
||
etc. */
|
||
elf_section_data (sec)->relocs = internal_relocs;
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
|
||
/* Get the opcode. */
|
||
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
|
||
|
||
/* Fix the opcode. For all the instructions that
|
||
belong to this relaxation, we simply need to turn
|
||
off bit 0x20 in the previous byte. */
|
||
code &= ~0x20;
|
||
|
||
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
|
||
|
||
/* Fix the relocation's type. */
|
||
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
||
R_H8_DIR16);
|
||
|
||
/* Delete two bytes of data. */
|
||
if (!elf32_h8_relax_delete_bytes (abfd, sec,
|
||
irel->r_offset + 1, 2))
|
||
goto error_return;
|
||
|
||
/* That will change things, so, we should relax again.
|
||
Note that this is not required, and it may be slow. */
|
||
*again = TRUE;
|
||
}
|
||
break;
|
||
}
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (isymbuf != NULL
|
||
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
||
{
|
||
if (! link_info->keep_memory)
|
||
free (isymbuf);
|
||
else
|
||
symtab_hdr->contents = (unsigned char *) isymbuf;
|
||
}
|
||
|
||
if (contents != NULL
|
||
&& elf_section_data (sec)->this_hdr.contents != contents)
|
||
{
|
||
if (! link_info->keep_memory)
|
||
free (contents);
|
||
else
|
||
{
|
||
/* Cache the section contents for elf_link_input_bfd. */
|
||
elf_section_data (sec)->this_hdr.contents = contents;
|
||
}
|
||
}
|
||
|
||
if (internal_relocs != NULL
|
||
&& elf_section_data (sec)->relocs != internal_relocs)
|
||
free (internal_relocs);
|
||
|
||
return TRUE;
|
||
|
||
error_return:
|
||
if (isymbuf != NULL
|
||
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
||
free (isymbuf);
|
||
if (contents != NULL
|
||
&& elf_section_data (sec)->this_hdr.contents != contents)
|
||
free (contents);
|
||
if (internal_relocs != NULL
|
||
&& elf_section_data (sec)->relocs != internal_relocs)
|
||
free (internal_relocs);
|
||
return FALSE;
|
||
}
|
||
|
||
/* Delete some bytes from a section while relaxing. */
|
||
|
||
static bfd_boolean
|
||
elf32_h8_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
unsigned int sec_shndx;
|
||
bfd_byte *contents;
|
||
Elf_Internal_Rela *irel, *irelend;
|
||
Elf_Internal_Rela *irelalign;
|
||
Elf_Internal_Sym *isym;
|
||
Elf_Internal_Sym *isymend;
|
||
bfd_vma toaddr;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
struct elf_link_hash_entry **end_hashes;
|
||
unsigned int symcount;
|
||
|
||
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
||
|
||
contents = elf_section_data (sec)->this_hdr.contents;
|
||
|
||
/* The deletion must stop at the next ALIGN reloc for an aligment
|
||
power larger than the number of bytes we are deleting. */
|
||
|
||
irelalign = NULL;
|
||
toaddr = sec->size;
|
||
|
||
irel = elf_section_data (sec)->relocs;
|
||
irelend = irel + sec->reloc_count;
|
||
|
||
/* Actually delete the bytes. */
|
||
memmove (contents + addr, contents + addr + count,
|
||
(size_t) (toaddr - addr - count));
|
||
sec->size -= count;
|
||
|
||
/* Adjust all the relocs. */
|
||
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
|
||
{
|
||
/* Get the new reloc address. */
|
||
if ((irel->r_offset > addr
|
||
&& irel->r_offset < toaddr))
|
||
irel->r_offset -= count;
|
||
}
|
||
|
||
/* Adjust the local symbols defined in this section. */
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
|
||
isymend = isym + symtab_hdr->sh_info;
|
||
for (; isym < isymend; isym++)
|
||
{
|
||
if (isym->st_shndx == sec_shndx
|
||
&& isym->st_value > addr
|
||
&& isym->st_value < toaddr)
|
||
isym->st_value -= count;
|
||
}
|
||
|
||
/* Now adjust the global symbols defined in this section. */
|
||
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
||
- symtab_hdr->sh_info);
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
end_hashes = sym_hashes + symcount;
|
||
for (; sym_hashes < end_hashes; sym_hashes++)
|
||
{
|
||
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
||
if ((sym_hash->root.type == bfd_link_hash_defined
|
||
|| sym_hash->root.type == bfd_link_hash_defweak)
|
||
&& sym_hash->root.u.def.section == sec
|
||
&& sym_hash->root.u.def.value > addr
|
||
&& sym_hash->root.u.def.value < toaddr)
|
||
{
|
||
sym_hash->root.u.def.value -= count;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return TRUE if a symbol exists at the given address, else return
|
||
FALSE. */
|
||
static bfd_boolean
|
||
elf32_h8_symbol_address_p (bfd *abfd, asection *sec, bfd_vma addr)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
unsigned int sec_shndx;
|
||
Elf_Internal_Sym *isym;
|
||
Elf_Internal_Sym *isymend;
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
struct elf_link_hash_entry **end_hashes;
|
||
unsigned int symcount;
|
||
|
||
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
||
|
||
/* Examine all the symbols. */
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
|
||
isymend = isym + symtab_hdr->sh_info;
|
||
for (; isym < isymend; isym++)
|
||
{
|
||
if (isym->st_shndx == sec_shndx
|
||
&& isym->st_value == addr)
|
||
return TRUE;
|
||
}
|
||
|
||
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
|
||
- symtab_hdr->sh_info);
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
end_hashes = sym_hashes + symcount;
|
||
for (; sym_hashes < end_hashes; sym_hashes++)
|
||
{
|
||
struct elf_link_hash_entry *sym_hash = *sym_hashes;
|
||
if ((sym_hash->root.type == bfd_link_hash_defined
|
||
|| sym_hash->root.type == bfd_link_hash_defweak)
|
||
&& sym_hash->root.u.def.section == sec
|
||
&& sym_hash->root.u.def.value == addr)
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/* This is a version of bfd_generic_get_relocated_section_contents
|
||
which uses elf32_h8_relocate_section. */
|
||
|
||
static bfd_byte *
|
||
elf32_h8_get_relocated_section_contents (bfd *output_bfd,
|
||
struct bfd_link_info *link_info,
|
||
struct bfd_link_order *link_order,
|
||
bfd_byte *data,
|
||
bfd_boolean relocatable,
|
||
asymbol **symbols)
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
asection *input_section = link_order->u.indirect.section;
|
||
bfd *input_bfd = input_section->owner;
|
||
asection **sections = NULL;
|
||
Elf_Internal_Rela *internal_relocs = NULL;
|
||
Elf_Internal_Sym *isymbuf = NULL;
|
||
|
||
/* We only need to handle the case of relaxing, or of having a
|
||
particular set of section contents, specially. */
|
||
if (relocatable
|
||
|| elf_section_data (input_section)->this_hdr.contents == NULL)
|
||
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
|
||
link_order, data,
|
||
relocatable,
|
||
symbols);
|
||
|
||
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
||
|
||
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
|
||
(size_t) input_section->size);
|
||
|
||
if ((input_section->flags & SEC_RELOC) != 0
|
||
&& input_section->reloc_count > 0)
|
||
{
|
||
asection **secpp;
|
||
Elf_Internal_Sym *isym, *isymend;
|
||
bfd_size_type amt;
|
||
|
||
internal_relocs = (_bfd_elf_link_read_relocs
|
||
(input_bfd, input_section, (PTR) NULL,
|
||
(Elf_Internal_Rela *) NULL, FALSE));
|
||
if (internal_relocs == NULL)
|
||
goto error_return;
|
||
|
||
if (symtab_hdr->sh_info != 0)
|
||
{
|
||
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
||
if (isymbuf == NULL)
|
||
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
|
||
symtab_hdr->sh_info, 0,
|
||
NULL, NULL, NULL);
|
||
if (isymbuf == NULL)
|
||
goto error_return;
|
||
}
|
||
|
||
amt = symtab_hdr->sh_info;
|
||
amt *= sizeof (asection *);
|
||
sections = (asection **) bfd_malloc (amt);
|
||
if (sections == NULL && amt != 0)
|
||
goto error_return;
|
||
|
||
isymend = isymbuf + symtab_hdr->sh_info;
|
||
for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
|
||
{
|
||
asection *isec;
|
||
|
||
if (isym->st_shndx == SHN_UNDEF)
|
||
isec = bfd_und_section_ptr;
|
||
else if (isym->st_shndx == SHN_ABS)
|
||
isec = bfd_abs_section_ptr;
|
||
else if (isym->st_shndx == SHN_COMMON)
|
||
isec = bfd_com_section_ptr;
|
||
else
|
||
isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
|
||
|
||
*secpp = isec;
|
||
}
|
||
|
||
if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd,
|
||
input_section, data, internal_relocs,
|
||
isymbuf, sections))
|
||
goto error_return;
|
||
|
||
if (sections != NULL)
|
||
free (sections);
|
||
if (isymbuf != NULL
|
||
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
||
free (isymbuf);
|
||
if (elf_section_data (input_section)->relocs != internal_relocs)
|
||
free (internal_relocs);
|
||
}
|
||
|
||
return data;
|
||
|
||
error_return:
|
||
if (sections != NULL)
|
||
free (sections);
|
||
if (isymbuf != NULL
|
||
&& symtab_hdr->contents != (unsigned char *) isymbuf)
|
||
free (isymbuf);
|
||
if (internal_relocs != NULL
|
||
&& elf_section_data (input_section)->relocs != internal_relocs)
|
||
free (internal_relocs);
|
||
return NULL;
|
||
}
|
||
|
||
static asection *
|
||
elf32_h8_gc_mark_hook (asection *sec,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
Elf_Internal_Rela *rel ATTRIBUTE_UNUSED,
|
||
struct elf_link_hash_entry *h,
|
||
Elf_Internal_Sym *sym)
|
||
{
|
||
if (h != NULL)
|
||
{
|
||
switch (h->root.type)
|
||
{
|
||
case bfd_link_hash_defined:
|
||
case bfd_link_hash_defweak:
|
||
return h->root.u.def.section;
|
||
|
||
case bfd_link_hash_common:
|
||
return h->root.u.c.p->section;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
|
||
return NULL;
|
||
}
|
||
|
||
static bfd_boolean
|
||
elf32_h8_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED,
|
||
asection *sec ATTRIBUTE_UNUSED,
|
||
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
#define TARGET_BIG_SYM bfd_elf32_h8300_vec
|
||
#define TARGET_BIG_NAME "elf32-h8300"
|
||
#define ELF_ARCH bfd_arch_h8300
|
||
#define ELF_MACHINE_CODE EM_H8_300
|
||
#define ELF_MAXPAGESIZE 0x1
|
||
#define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup
|
||
#define elf_info_to_howto elf32_h8_info_to_howto
|
||
#define elf_info_to_howto_rel elf32_h8_info_to_howto_rel
|
||
|
||
/* So we can set/examine bits in e_flags to get the specific
|
||
H8 architecture in use. */
|
||
#define elf_backend_final_write_processing \
|
||
elf32_h8_final_write_processing
|
||
#define elf_backend_object_p \
|
||
elf32_h8_object_p
|
||
#define bfd_elf32_bfd_merge_private_bfd_data \
|
||
elf32_h8_merge_private_bfd_data
|
||
#define elf_backend_gc_mark_hook elf32_h8_gc_mark_hook
|
||
#define elf_backend_gc_sweep_hook elf32_h8_gc_sweep_hook
|
||
|
||
/* ??? when elf_backend_relocate_section is not defined, elf32-target.h
|
||
defaults to using _bfd_generic_link_hash_table_create, but
|
||
bfd_elf_size_dynamic_sections uses
|
||
dynobj = elf_hash_table (info)->dynobj;
|
||
and thus requires an elf hash table. */
|
||
#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
|
||
|
||
/* Use an H8 specific linker, not the ELF generic linker. */
|
||
#define elf_backend_relocate_section elf32_h8_relocate_section
|
||
#define elf_backend_rela_normal 1
|
||
#define elf_backend_can_gc_sections 1
|
||
|
||
/* And relaxing stuff. */
|
||
#define bfd_elf32_bfd_relax_section elf32_h8_relax_section
|
||
#define bfd_elf32_bfd_get_relocated_section_contents \
|
||
elf32_h8_get_relocated_section_contents
|
||
|
||
|
||
#include "elf32-target.h"
|