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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.
1666 lines
48 KiB
C
1666 lines
48 KiB
C
/* Ubicom IP2xxx specific support for 32-bit ELF
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Copyright 2000, 2001, 2002, 2003, 2004 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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/ip2k.h"
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/* Struct used to pass miscellaneous paramaters which
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helps to avoid overly long parameter lists. */
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struct misc
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{
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Elf_Internal_Shdr * symtab_hdr;
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Elf_Internal_Rela * irelbase;
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bfd_byte * contents;
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Elf_Internal_Sym * isymbuf;
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};
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struct ip2k_opcode
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{
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unsigned short opcode;
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unsigned short mask;
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};
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/* Prototypes. */
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static reloc_howto_type *ip2k_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static int ip2k_is_opcode
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PARAMS ((bfd_byte *, const struct ip2k_opcode *));
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static bfd_vma symbol_value
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PARAMS ((bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *,
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Elf_Internal_Rela *));
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static void ip2k_get_mem
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PARAMS ((bfd *, bfd_byte *, int, bfd_byte *));
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static bfd_vma ip2k_nominal_page_bits
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PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
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static bfd_boolean ip2k_test_page_insn
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, struct misc *));
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static bfd_boolean ip2k_delete_page_insn
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
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static int ip2k_is_switch_table_128
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PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
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static bfd_boolean ip2k_relax_switch_table_128
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
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static int ip2k_is_switch_table_256
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PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
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static bfd_boolean ip2k_relax_switch_table_256
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
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static bfd_boolean ip2k_elf_relax_section
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PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
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static bfd_boolean ip2k_elf_relax_section_page
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PARAMS ((bfd *, asection *, bfd_boolean *, struct misc *, unsigned long, unsigned long));
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static void adjust_all_relocations
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PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int, int));
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static bfd_boolean ip2k_elf_relax_delete_bytes
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PARAMS ((bfd *, asection *, bfd_vma, int));
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static void ip2k_info_to_howto_rela
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static bfd_reloc_status_type ip2k_final_link_relocate
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PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, bfd_vma));
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static bfd_boolean ip2k_elf_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static asection *ip2k_elf_gc_mark_hook
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PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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static bfd_boolean ip2k_elf_gc_sweep_hook
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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static bfd_boolean ip2k_relaxed = FALSE;
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static const struct ip2k_opcode ip2k_page_opcode[] =
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{
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{0x0010, 0xFFF8}, /* page */
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{0x0000, 0x0000},
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};
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#define IS_PAGE_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_page_opcode)
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static const struct ip2k_opcode ip2k_jmp_opcode[] =
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{
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{0xE000, 0xE000}, /* jmp */
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{0x0000, 0x0000},
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};
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#define IS_JMP_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_jmp_opcode)
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static const struct ip2k_opcode ip2k_call_opcode[] =
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{
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{0xC000, 0xE000}, /* call */
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{0x0000, 0x0000},
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};
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#define IS_CALL_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_call_opcode)
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static const struct ip2k_opcode ip2k_snc_opcode[] =
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{
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{0xA00B, 0xFFFF}, /* snc */
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{0x0000, 0x0000},
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};
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#define IS_SNC_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_snc_opcode)
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static const struct ip2k_opcode ip2k_inc_1sp_opcode[] =
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{
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{0x2B81, 0xFFFF}, /* inc 1(SP) */
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{0x0000, 0x0000},
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};
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#define IS_INC_1SP_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_inc_1sp_opcode)
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static const struct ip2k_opcode ip2k_add_2sp_w_opcode[] =
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{
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{0x1F82, 0xFFFF}, /* add 2(SP),w */
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{0x0000, 0x0000},
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};
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#define IS_ADD_2SP_W_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_add_2sp_w_opcode)
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static const struct ip2k_opcode ip2k_add_w_wreg_opcode[] =
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{
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{0x1C0A, 0xFFFF}, /* add w,wreg */
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{0x1E0A, 0xFFFF}, /* add wreg,w */
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{0x0000, 0x0000},
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};
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#define IS_ADD_W_WREG_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_add_w_wreg_opcode)
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static const struct ip2k_opcode ip2k_add_pcl_w_opcode[] =
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{
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{0x1E09, 0xFFFF}, /* add pcl,w */
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{0x0000, 0x0000},
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};
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#define IS_ADD_PCL_W_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_add_pcl_w_opcode)
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static const struct ip2k_opcode ip2k_skip_opcodes[] =
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{
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{0xB000, 0xF000}, /* sb */
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{0xA000, 0xF000}, /* snb */
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{0x7600, 0xFE00}, /* cse/csne #lit */
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{0x5800, 0xFC00}, /* incsnz */
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{0x4C00, 0xFC00}, /* decsnz */
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{0x4000, 0xFC00}, /* cse/csne */
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{0x3C00, 0xFC00}, /* incsz */
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{0x2C00, 0xFC00}, /* decsz */
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{0x0000, 0x0000},
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};
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#define IS_SKIP_OPCODE(code) \
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ip2k_is_opcode (code, ip2k_skip_opcodes)
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/* Relocation tables. */
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static reloc_howto_type ip2k_elf_howto_table [] =
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{
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#define IP2K_HOWTO(t,rs,s,bs,pr,bp,name,sm,dm) \
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HOWTO(t, /* type */ \
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rs, /* rightshift */ \
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s, /* size (0 = byte, 1 = short, 2 = long) */ \
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bs, /* bitsize */ \
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pr, /* pc_relative */ \
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bp, /* bitpos */ \
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complain_overflow_dont,/* complain_on_overflow */ \
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bfd_elf_generic_reloc,/* special_function */ \
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name, /* name */ \
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FALSE, /* partial_inplace */ \
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sm, /* src_mask */ \
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dm, /* dst_mask */ \
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pr) /* pcrel_offset */
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/* This reloc does nothing. */
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IP2K_HOWTO (R_IP2K_NONE, 0,2,32, FALSE, 0, "R_IP2K_NONE", 0, 0),
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/* A 16 bit absolute relocation. */
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IP2K_HOWTO (R_IP2K_16, 0,1,16, FALSE, 0, "R_IP2K_16", 0, 0xffff),
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/* A 32 bit absolute relocation. */
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IP2K_HOWTO (R_IP2K_32, 0,2,32, FALSE, 0, "R_IP2K_32", 0, 0xffffffff),
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/* A 8-bit data relocation for the FR9 field. Ninth bit is computed specially. */
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IP2K_HOWTO (R_IP2K_FR9, 0,1,9, FALSE, 0, "R_IP2K_FR9", 0, 0x00ff),
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/* A 4-bit data relocation. */
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IP2K_HOWTO (R_IP2K_BANK, 8,1,4, FALSE, 0, "R_IP2K_BANK", 0, 0x000f),
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/* A 13-bit insn relocation - word address => right-shift 1 bit extra. */
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IP2K_HOWTO (R_IP2K_ADDR16CJP, 1,1,13, FALSE, 0, "R_IP2K_ADDR16CJP", 0, 0x1fff),
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/* A 3-bit insn relocation - word address => right-shift 1 bit extra. */
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IP2K_HOWTO (R_IP2K_PAGE3, 14,1,3, FALSE, 0, "R_IP2K_PAGE3", 0, 0x0007),
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/* Two 8-bit data relocations. */
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IP2K_HOWTO (R_IP2K_LO8DATA, 0,1,8, FALSE, 0, "R_IP2K_LO8DATA", 0, 0x00ff),
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IP2K_HOWTO (R_IP2K_HI8DATA, 8,1,8, FALSE, 0, "R_IP2K_HI8DATA", 0, 0x00ff),
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/* Two 8-bit insn relocations. word address => right-shift 1 bit extra. */
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IP2K_HOWTO (R_IP2K_LO8INSN, 1,1,8, FALSE, 0, "R_IP2K_LO8INSN", 0, 0x00ff),
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IP2K_HOWTO (R_IP2K_HI8INSN, 9,1,8, FALSE, 0, "R_IP2K_HI8INSN", 0, 0x00ff),
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/* Special 1 bit relocation for SKIP instructions. */
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IP2K_HOWTO (R_IP2K_PC_SKIP, 1,1,1, FALSE, 12, "R_IP2K_PC_SKIP", 0xfffe, 0x1000),
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/* 16 bit word address. */
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IP2K_HOWTO (R_IP2K_TEXT, 1,1,16, FALSE, 0, "R_IP2K_TEXT", 0, 0xffff),
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/* A 7-bit offset relocation for the FR9 field. Eigth and ninth bit comes from insn. */
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IP2K_HOWTO (R_IP2K_FR_OFFSET, 0,1,9, FALSE, 0, "R_IP2K_FR_OFFSET", 0x180, 0x007f),
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/* Bits 23:16 of an address. */
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IP2K_HOWTO (R_IP2K_EX8DATA, 16,1,8, FALSE, 0, "R_IP2K_EX8DATA", 0, 0x00ff),
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};
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/* Map BFD reloc types to IP2K ELF reloc types. */
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static reloc_howto_type *
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ip2k_reloc_type_lookup (abfd, code)
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bfd * abfd ATTRIBUTE_UNUSED;
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bfd_reloc_code_real_type code;
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{
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/* Note that the ip2k_elf_howto_table is indxed by the R_
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constants. Thus, the order that the howto records appear in the
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table *must* match the order of the relocation types defined in
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include/elf/ip2k.h. */
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switch (code)
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{
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case BFD_RELOC_NONE:
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return &ip2k_elf_howto_table[ (int) R_IP2K_NONE];
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case BFD_RELOC_16:
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return &ip2k_elf_howto_table[ (int) R_IP2K_16];
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case BFD_RELOC_32:
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return &ip2k_elf_howto_table[ (int) R_IP2K_32];
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case BFD_RELOC_IP2K_FR9:
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return &ip2k_elf_howto_table[ (int) R_IP2K_FR9];
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case BFD_RELOC_IP2K_BANK:
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return &ip2k_elf_howto_table[ (int) R_IP2K_BANK];
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case BFD_RELOC_IP2K_ADDR16CJP:
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return &ip2k_elf_howto_table[ (int) R_IP2K_ADDR16CJP];
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case BFD_RELOC_IP2K_PAGE3:
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return &ip2k_elf_howto_table[ (int) R_IP2K_PAGE3];
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case BFD_RELOC_IP2K_LO8DATA:
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return &ip2k_elf_howto_table[ (int) R_IP2K_LO8DATA];
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case BFD_RELOC_IP2K_HI8DATA:
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return &ip2k_elf_howto_table[ (int) R_IP2K_HI8DATA];
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case BFD_RELOC_IP2K_LO8INSN:
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return &ip2k_elf_howto_table[ (int) R_IP2K_LO8INSN];
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case BFD_RELOC_IP2K_HI8INSN:
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return &ip2k_elf_howto_table[ (int) R_IP2K_HI8INSN];
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case BFD_RELOC_IP2K_PC_SKIP:
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return &ip2k_elf_howto_table[ (int) R_IP2K_PC_SKIP];
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case BFD_RELOC_IP2K_TEXT:
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return &ip2k_elf_howto_table[ (int) R_IP2K_TEXT];
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case BFD_RELOC_IP2K_FR_OFFSET:
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return &ip2k_elf_howto_table[ (int) R_IP2K_FR_OFFSET];
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case BFD_RELOC_IP2K_EX8DATA:
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return &ip2k_elf_howto_table[ (int) R_IP2K_EX8DATA];
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default:
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/* Pacify gcc -Wall. */
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return NULL;
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}
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return NULL;
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}
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static void
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ip2k_get_mem (abfd, addr, length, ptr)
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bfd *abfd ATTRIBUTE_UNUSED;
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bfd_byte *addr;
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int length;
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bfd_byte *ptr;
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{
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while (length --)
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* ptr ++ = bfd_get_8 (abfd, addr ++);
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}
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static bfd_boolean
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ip2k_is_opcode (code, opcodes)
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bfd_byte *code;
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const struct ip2k_opcode *opcodes;
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{
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unsigned short insn = (code[0] << 8) | code[1];
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while (opcodes->mask != 0)
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{
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if ((insn & opcodes->mask) == opcodes->opcode)
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return TRUE;
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opcodes ++;
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}
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return FALSE;
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}
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#define PAGENO(ABSADDR) ((ABSADDR) & 0xFFFFC000)
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#define BASEADDR(SEC) ((SEC)->output_section->vma + (SEC)->output_offset)
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#define UNDEFINED_SYMBOL (~(bfd_vma)0)
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/* Return the value of the symbol associated with the relocation IREL. */
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static bfd_vma
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symbol_value (abfd, symtab_hdr, isymbuf, irel)
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bfd *abfd;
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Elf_Internal_Shdr *symtab_hdr;
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Elf_Internal_Sym *isymbuf;
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Elf_Internal_Rela *irel;
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{
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if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
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{
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Elf_Internal_Sym *isym;
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asection *sym_sec;
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isym = isymbuf + ELF32_R_SYM (irel->r_info);
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if (isym->st_shndx == SHN_UNDEF)
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sym_sec = bfd_und_section_ptr;
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else if (isym->st_shndx == SHN_ABS)
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sym_sec = bfd_abs_section_ptr;
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else if (isym->st_shndx == SHN_COMMON)
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sym_sec = bfd_com_section_ptr;
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else
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sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
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return isym->st_value + BASEADDR (sym_sec);
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}
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else
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{
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unsigned long indx;
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struct elf_link_hash_entry *h;
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indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
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h = elf_sym_hashes (abfd)[indx];
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BFD_ASSERT (h != NULL);
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if (h->root.type != bfd_link_hash_defined
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&& h->root.type != bfd_link_hash_defweak)
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return UNDEFINED_SYMBOL;
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return (h->root.u.def.value + BASEADDR (h->root.u.def.section));
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}
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}
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|
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/* Returns the expected page state for the given instruction not including
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the effect of page instructions. */
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static bfd_vma
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ip2k_nominal_page_bits (abfd, sec, addr, contents)
|
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bfd *abfd ATTRIBUTE_UNUSED;
|
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asection *sec;
|
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bfd_vma addr;
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bfd_byte *contents;
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{
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bfd_vma page = PAGENO (BASEADDR (sec) + addr);
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/* Check if section flows into this page. If not then the page
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bits are assumed to match the PC. This will be true unless
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the user has a page instruction without a call/jump, in which
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case they are on their own. */
|
|
if (PAGENO (BASEADDR (sec)) == page)
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return page;
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/* Section flows across page boundary. The page bits should match
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the PC unless there is a possible flow from the previous page,
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|
in which case it is not possible to determine the value of the
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page bits. */
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|
while (PAGENO (BASEADDR (sec) + addr - 2) == page)
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{
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bfd_byte code[2];
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addr -= 2;
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ip2k_get_mem (abfd, contents + addr, 2, code);
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if (!IS_PAGE_OPCODE (code))
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continue;
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|
/* Found a page instruction, check if jump table. */
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|
if (ip2k_is_switch_table_128 (abfd, sec, addr, contents) != -1)
|
|
/* Jump table => page is conditional. */
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continue;
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if (ip2k_is_switch_table_256 (abfd, sec, addr, contents) != -1)
|
|
/* Jump table => page is conditional. */
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continue;
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/* Found a page instruction, check if conditional. */
|
|
if (addr >= 2)
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{
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|
ip2k_get_mem (abfd, contents + addr - 2, 2, code);
|
|
if (IS_SKIP_OPCODE (code))
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|
/* Page is conditional. */
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|
continue;
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|
}
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/* Unconditional page instruction => page bits should be correct. */
|
|
return page;
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}
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|
/* Flow from previous page => page bits are impossible to determine. */
|
|
return 0;
|
|
}
|
|
|
|
static bfd_boolean
|
|
ip2k_test_page_insn (abfd, sec, irel, misc)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
Elf_Internal_Rela *irel;
|
|
struct misc *misc;
|
|
{
|
|
bfd_vma symval;
|
|
|
|
/* Get the value of the symbol referred to by the reloc. */
|
|
symval = symbol_value (abfd, misc->symtab_hdr, misc->isymbuf, irel);
|
|
if (symval == UNDEFINED_SYMBOL)
|
|
/* This appears to be a reference to an undefined
|
|
symbol. Just ignore it--it will be caught by the
|
|
regular reloc processing. */
|
|
return FALSE;
|
|
|
|
/* Test if we can delete this page instruction. */
|
|
if (PAGENO (symval + irel->r_addend) !=
|
|
ip2k_nominal_page_bits (abfd, sec, irel->r_offset, misc->contents))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static bfd_boolean
|
|
ip2k_delete_page_insn (abfd, sec, irel, again, misc)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
Elf_Internal_Rela *irel;
|
|
bfd_boolean *again;
|
|
struct misc *misc;
|
|
{
|
|
/* Note that we've changed the relocs, section contents, etc. */
|
|
elf_section_data (sec)->relocs = misc->irelbase;
|
|
elf_section_data (sec)->this_hdr.contents = misc->contents;
|
|
misc->symtab_hdr->contents = (bfd_byte *) misc->isymbuf;
|
|
|
|
/* Fix the relocation's type. */
|
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_IP2K_NONE);
|
|
|
|
/* Delete the PAGE insn. */
|
|
if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset, 2))
|
|
return FALSE;
|
|
|
|
/* Modified => will need to iterate relaxation again. */
|
|
*again = TRUE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Determine if the instruction sequence matches that for
|
|
the prologue of a switch dispatch table with fewer than
|
|
128 entries.
|
|
|
|
sc
|
|
page $nnn0
|
|
jmp $nnn0
|
|
add w,wreg
|
|
add pcl,w
|
|
addr=>
|
|
page $nnn1
|
|
jmp $nnn1
|
|
page $nnn2
|
|
jmp $nnn2
|
|
...
|
|
page $nnnN
|
|
jmp $nnnN
|
|
|
|
After relaxation.
|
|
sc
|
|
page $nnn0
|
|
jmp $nnn0
|
|
add pcl,w
|
|
addr=>
|
|
jmp $nnn1
|
|
jmp $nnn2
|
|
...
|
|
jmp $nnnN */
|
|
|
|
static int
|
|
ip2k_is_switch_table_128 (abfd, sec, addr, contents)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
bfd_vma addr;
|
|
bfd_byte *contents;
|
|
{
|
|
bfd_byte code[4];
|
|
int index = 0;
|
|
|
|
/* Check current page-jmp. */
|
|
if (addr + 4 > sec->size)
|
|
return -1;
|
|
|
|
ip2k_get_mem (abfd, contents + addr, 4, code);
|
|
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
return -1;
|
|
|
|
/* Search back. */
|
|
while (1)
|
|
{
|
|
if (addr < 4)
|
|
return -1;
|
|
|
|
/* Check previous 2 instructions. */
|
|
ip2k_get_mem (abfd, contents + addr - 4, 4, code);
|
|
if ((IS_ADD_W_WREG_OPCODE (code + 0))
|
|
&& (IS_ADD_PCL_W_OPCODE (code + 2)))
|
|
return index;
|
|
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
return -1;
|
|
|
|
index++;
|
|
addr -= 4;
|
|
}
|
|
}
|
|
|
|
static bfd_boolean
|
|
ip2k_relax_switch_table_128 (abfd, sec, irel, again, misc)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
Elf_Internal_Rela *irel;
|
|
bfd_boolean *again;
|
|
struct misc *misc;
|
|
{
|
|
Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
|
|
Elf_Internal_Rela *ireltest = irel;
|
|
bfd_byte code[4];
|
|
bfd_vma addr;
|
|
|
|
/* Test all page instructions. */
|
|
addr = irel->r_offset;
|
|
while (1)
|
|
{
|
|
if (addr + 4 > sec->size)
|
|
break;
|
|
|
|
ip2k_get_mem (abfd, misc->contents + addr, 4, code);
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
break;
|
|
|
|
/* Validate relocation entry (every entry should have a matching
|
|
relocation entry). */
|
|
if (ireltest >= irelend)
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
|
|
return FALSE;
|
|
}
|
|
|
|
if (ireltest->r_offset != addr)
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
|
|
return FALSE;
|
|
}
|
|
|
|
if (! ip2k_test_page_insn (abfd, sec, ireltest, misc))
|
|
/* Un-removable page insn => nothing can be done. */
|
|
return TRUE;
|
|
|
|
addr += 4;
|
|
ireltest += 2;
|
|
}
|
|
|
|
/* Relaxable. Adjust table header. */
|
|
ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 4, code);
|
|
if ((! IS_ADD_W_WREG_OPCODE (code + 0))
|
|
|| (! IS_ADD_PCL_W_OPCODE (code + 2)))
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table header corrupt."));
|
|
return FALSE;
|
|
}
|
|
|
|
if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset - 4, 2))
|
|
return FALSE;
|
|
|
|
*again = TRUE;
|
|
|
|
/* Delete all page instructions in table. */
|
|
while (irel < ireltest)
|
|
{
|
|
if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
|
|
return FALSE;
|
|
irel += 2;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Determine if the instruction sequence matches that for
|
|
the prologue switch dispatch table with fewer than
|
|
256 entries but more than 127.
|
|
|
|
Before relaxation.
|
|
push %lo8insn(label) ; Push address of table
|
|
push %hi8insn(label)
|
|
add w,wreg ; index*2 => offset
|
|
snc ; CARRY SET?
|
|
inc 1(sp) ; Propagate MSB into table address
|
|
add 2(sp),w ; Add low bits of offset to table address
|
|
snc ; and handle any carry-out
|
|
inc 1(sp)
|
|
addr=>
|
|
page __indjmp ; Do an indirect jump to that location
|
|
jmp __indjmp
|
|
label: ; case dispatch table starts here
|
|
page $nnn1
|
|
jmp $nnn1
|
|
page $nnn2
|
|
jmp $nnn2
|
|
...
|
|
page $nnnN
|
|
jmp $nnnN
|
|
|
|
After relaxation.
|
|
push %lo8insn(label) ; Push address of table
|
|
push %hi8insn(label)
|
|
add 2(sp),w ; Add low bits of offset to table address
|
|
snc ; and handle any carry-out
|
|
inc 1(sp)
|
|
addr=>
|
|
page __indjmp ; Do an indirect jump to that location
|
|
jmp __indjmp
|
|
label: ; case dispatch table starts here
|
|
jmp $nnn1
|
|
jmp $nnn2
|
|
...
|
|
jmp $nnnN */
|
|
|
|
static int
|
|
ip2k_is_switch_table_256 (abfd, sec, addr, contents)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
bfd_vma addr;
|
|
bfd_byte *contents;
|
|
{
|
|
bfd_byte code[16];
|
|
int index = 0;
|
|
|
|
/* Check current page-jmp. */
|
|
if (addr + 4 > sec->size)
|
|
return -1;
|
|
|
|
ip2k_get_mem (abfd, contents + addr, 4, code);
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
return -1;
|
|
|
|
/* Search back. */
|
|
while (1)
|
|
{
|
|
if (addr < 16)
|
|
return -1;
|
|
|
|
/* Check previous 8 instructions. */
|
|
ip2k_get_mem (abfd, contents + addr - 16, 16, code);
|
|
if ((IS_ADD_W_WREG_OPCODE (code + 0))
|
|
&& (IS_SNC_OPCODE (code + 2))
|
|
&& (IS_INC_1SP_OPCODE (code + 4))
|
|
&& (IS_ADD_2SP_W_OPCODE (code + 6))
|
|
&& (IS_SNC_OPCODE (code + 8))
|
|
&& (IS_INC_1SP_OPCODE (code + 10))
|
|
&& (IS_PAGE_OPCODE (code + 12))
|
|
&& (IS_JMP_OPCODE (code + 14)))
|
|
return index;
|
|
|
|
if ((IS_ADD_W_WREG_OPCODE (code + 2))
|
|
&& (IS_SNC_OPCODE (code + 4))
|
|
&& (IS_INC_1SP_OPCODE (code + 6))
|
|
&& (IS_ADD_2SP_W_OPCODE (code + 8))
|
|
&& (IS_SNC_OPCODE (code + 10))
|
|
&& (IS_INC_1SP_OPCODE (code + 12))
|
|
&& (IS_JMP_OPCODE (code + 14)))
|
|
return index;
|
|
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
return -1;
|
|
|
|
index++;
|
|
addr -= 4;
|
|
}
|
|
}
|
|
|
|
static bfd_boolean
|
|
ip2k_relax_switch_table_256 (abfd, sec, irel, again, misc)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
asection *sec;
|
|
Elf_Internal_Rela *irel;
|
|
bfd_boolean *again;
|
|
struct misc *misc;
|
|
{
|
|
Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
|
|
Elf_Internal_Rela *ireltest = irel;
|
|
bfd_byte code[12];
|
|
bfd_vma addr;
|
|
|
|
/* Test all page instructions. */
|
|
addr = irel->r_offset;
|
|
|
|
while (1)
|
|
{
|
|
if (addr + 4 > sec->size)
|
|
break;
|
|
|
|
ip2k_get_mem (abfd, misc->contents + addr, 4, code);
|
|
|
|
if ((! IS_PAGE_OPCODE (code + 0))
|
|
|| (! IS_JMP_OPCODE (code + 2)))
|
|
break;
|
|
|
|
/* Validate relocation entry (every entry should have a matching
|
|
relocation entry). */
|
|
if (ireltest >= irelend)
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
|
|
return FALSE;
|
|
}
|
|
|
|
if (ireltest->r_offset != addr)
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
|
|
return FALSE;
|
|
}
|
|
|
|
if (!ip2k_test_page_insn (abfd, sec, ireltest, misc))
|
|
/* Un-removable page insn => nothing can be done. */
|
|
return TRUE;
|
|
|
|
addr += 4;
|
|
ireltest += 2;
|
|
}
|
|
|
|
/* Relaxable. Adjust table header. */
|
|
ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 2, code);
|
|
if (IS_PAGE_OPCODE (code))
|
|
addr = irel->r_offset - 16;
|
|
else
|
|
addr = irel->r_offset - 14;
|
|
|
|
ip2k_get_mem (abfd, misc->contents + addr, 12, code);
|
|
if ((!IS_ADD_W_WREG_OPCODE (code + 0))
|
|
|| (!IS_SNC_OPCODE (code + 2))
|
|
|| (!IS_INC_1SP_OPCODE (code + 4))
|
|
|| (!IS_ADD_2SP_W_OPCODE (code + 6))
|
|
|| (!IS_SNC_OPCODE (code + 8))
|
|
|| (!IS_INC_1SP_OPCODE (code + 10)))
|
|
{
|
|
_bfd_error_handler (_("ip2k relaxer: switch table header corrupt."));
|
|
return FALSE;
|
|
}
|
|
|
|
/* Delete first 3 opcodes. */
|
|
if (!ip2k_elf_relax_delete_bytes (abfd, sec, addr + 0, 6))
|
|
return FALSE;
|
|
|
|
*again = TRUE;
|
|
|
|
/* Delete all page instructions in table. */
|
|
while (irel < ireltest)
|
|
{
|
|
if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
|
|
return FALSE;
|
|
irel += 2;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* This function handles relaxing for the ip2k.
|
|
|
|
Principle: Start with the first page and remove page instructions that
|
|
are not require on this first page. By removing page instructions more
|
|
code will fit into this page - repeat until nothing more can be achieved
|
|
for this page. Move on to the next page.
|
|
|
|
Processing the pages one at a time from the lowest page allows a removal
|
|
only policy to be used - pages can be removed but are never reinserted. */
|
|
|
|
static bfd_boolean
|
|
ip2k_elf_relax_section (abfd, sec, link_info, again)
|
|
bfd *abfd;
|
|
asection *sec;
|
|
struct bfd_link_info *link_info;
|
|
bfd_boolean *again;
|
|
{
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
Elf_Internal_Rela *internal_relocs;
|
|
bfd_byte *contents = NULL;
|
|
Elf_Internal_Sym *isymbuf = NULL;
|
|
static asection * first_section = NULL;
|
|
static unsigned long search_addr;
|
|
static unsigned long page_start = 0;
|
|
static unsigned long page_end = 0;
|
|
static unsigned int pass = 0;
|
|
static bfd_boolean new_pass = FALSE;
|
|
static bfd_boolean changed = FALSE;
|
|
struct misc misc;
|
|
asection *stab;
|
|
|
|
/* Assume nothing changes. */
|
|
*again = FALSE;
|
|
|
|
if (first_section == NULL)
|
|
{
|
|
ip2k_relaxed = TRUE;
|
|
first_section = sec;
|
|
}
|
|
|
|
if (first_section == sec)
|
|
{
|
|
pass++;
|
|
new_pass = TRUE;
|
|
}
|
|
|
|
/* 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;
|
|
|
|
internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL,
|
|
(Elf_Internal_Rela *)NULL,
|
|
link_info->keep_memory);
|
|
if (internal_relocs == NULL)
|
|
goto error_return;
|
|
|
|
/* Make sure the stac.rela stuff gets read in. */
|
|
stab = bfd_get_section_by_name (abfd, ".stab");
|
|
|
|
if (stab)
|
|
{
|
|
/* So stab does exits. */
|
|
Elf_Internal_Rela * irelbase;
|
|
|
|
irelbase = _bfd_elf_link_read_relocs (abfd, stab, NULL,
|
|
(Elf_Internal_Rela *)NULL,
|
|
link_info->keep_memory);
|
|
}
|
|
|
|
/* Get section contents cached copy if it exists. */
|
|
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 symbols cached copy if it exists. */
|
|
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;
|
|
}
|
|
|
|
misc.symtab_hdr = symtab_hdr;
|
|
misc.isymbuf = isymbuf;
|
|
misc.irelbase = internal_relocs;
|
|
misc.contents = contents;
|
|
|
|
/* This is where all the relaxation actually get done. */
|
|
if ((pass == 1) || (new_pass && !changed))
|
|
{
|
|
/* On the first pass we simply search for the lowest page that
|
|
we havn't relaxed yet. Note that the pass count is reset
|
|
each time a page is complete in order to move on to the next page.
|
|
If we can't find any more pages then we are finished. */
|
|
if (new_pass)
|
|
{
|
|
pass = 1;
|
|
new_pass = FALSE;
|
|
changed = TRUE; /* Pre-initialize to break out of pass 1. */
|
|
search_addr = 0xFFFFFFFF;
|
|
}
|
|
|
|
if ((BASEADDR (sec) + sec->size < search_addr)
|
|
&& (BASEADDR (sec) + sec->size > page_end))
|
|
{
|
|
if (BASEADDR (sec) <= page_end)
|
|
search_addr = page_end + 1;
|
|
else
|
|
search_addr = BASEADDR (sec);
|
|
|
|
/* Found a page => more work to do. */
|
|
*again = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (new_pass)
|
|
{
|
|
new_pass = FALSE;
|
|
changed = FALSE;
|
|
page_start = PAGENO (search_addr);
|
|
page_end = page_start | 0x00003FFF;
|
|
}
|
|
|
|
/* Only process sections in range. */
|
|
if ((BASEADDR (sec) + sec->size >= page_start)
|
|
&& (BASEADDR (sec) <= page_end))
|
|
{
|
|
if (!ip2k_elf_relax_section_page (abfd, sec, &changed, &misc, page_start, page_end))
|
|
return FALSE;
|
|
}
|
|
*again = TRUE;
|
|
}
|
|
|
|
/* Perform some house keeping after relaxing the section. */
|
|
|
|
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;
|
|
}
|
|
|
|
/* This function handles relaxation of a section in a specific page. */
|
|
|
|
static bfd_boolean
|
|
ip2k_elf_relax_section_page (abfd, sec, again, misc, page_start, page_end)
|
|
bfd *abfd;
|
|
asection *sec;
|
|
bfd_boolean *again;
|
|
struct misc *misc;
|
|
unsigned long page_start;
|
|
unsigned long page_end;
|
|
{
|
|
Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
|
|
Elf_Internal_Rela *irel;
|
|
int switch_table_128;
|
|
int switch_table_256;
|
|
|
|
/* Walk thru the section looking for relaxation opportunities. */
|
|
for (irel = misc->irelbase; irel < irelend; irel++)
|
|
{
|
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_IP2K_PAGE3)
|
|
/* Ignore non page instructions. */
|
|
continue;
|
|
|
|
if (BASEADDR (sec) + irel->r_offset < page_start)
|
|
/* Ignore page instructions on earlier page - they have
|
|
already been processed. Remember that there is code flow
|
|
that crosses a page boundary. */
|
|
continue;
|
|
|
|
if (BASEADDR (sec) + irel->r_offset > page_end)
|
|
/* Flow beyond end of page => nothing more to do for this page. */
|
|
return TRUE;
|
|
|
|
/* Detect switch tables. */
|
|
switch_table_128 = ip2k_is_switch_table_128 (abfd, sec, irel->r_offset, misc->contents);
|
|
switch_table_256 = ip2k_is_switch_table_256 (abfd, sec, irel->r_offset, misc->contents);
|
|
|
|
if ((switch_table_128 > 0) || (switch_table_256 > 0))
|
|
/* If the index is greater than 0 then it has already been processed. */
|
|
continue;
|
|
|
|
if (switch_table_128 == 0)
|
|
{
|
|
if (!ip2k_relax_switch_table_128 (abfd, sec, irel, again, misc))
|
|
return FALSE;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (switch_table_256 == 0)
|
|
{
|
|
if (!ip2k_relax_switch_table_256 (abfd, sec, irel, again, misc))
|
|
return FALSE;
|
|
|
|
continue;
|
|
}
|
|
|
|
/* Simple relax. */
|
|
if (ip2k_test_page_insn (abfd, sec, irel, misc))
|
|
{
|
|
if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
|
|
return FALSE;
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Parts of a Stabs entry. */
|
|
|
|
#define STRDXOFF (0)
|
|
#define TYPEOFF (4)
|
|
#define OTHEROFF (5)
|
|
#define DESCOFF (6)
|
|
#define VALOFF (8)
|
|
#define STABSIZE (12)
|
|
|
|
/* Adjust all the relocations entries after adding or inserting instructions. */
|
|
|
|
static void
|
|
adjust_all_relocations (abfd, sec, addr, endaddr, count, noadj)
|
|
bfd *abfd;
|
|
asection *sec;
|
|
bfd_vma addr;
|
|
bfd_vma endaddr;
|
|
int count;
|
|
int noadj;
|
|
{
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
Elf_Internal_Sym *isymbuf, *isym, *isymend;
|
|
unsigned int shndx;
|
|
bfd_byte *contents;
|
|
Elf_Internal_Rela *irel, *irelend, *irelbase;
|
|
struct elf_link_hash_entry **sym_hashes;
|
|
struct elf_link_hash_entry **end_hashes;
|
|
unsigned int symcount;
|
|
asection *stab;
|
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
|
|
|
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
|
|
|
contents = elf_section_data (sec)->this_hdr.contents;
|
|
|
|
irelbase = elf_section_data (sec)->relocs;
|
|
irelend = irelbase + sec->reloc_count;
|
|
|
|
for (irel = irelbase; irel < irelend; irel++)
|
|
{
|
|
if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE)
|
|
{
|
|
/* Get the value of the symbol referred to by the reloc. */
|
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
|
{
|
|
asection *sym_sec;
|
|
|
|
/* A local symbol. */
|
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
|
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
|
|
|
if (isym->st_shndx == shndx)
|
|
{
|
|
bfd_vma baseaddr = BASEADDR (sec);
|
|
bfd_vma symval = BASEADDR (sym_sec) + isym->st_value
|
|
+ irel->r_addend;
|
|
|
|
if ((baseaddr + addr + noadj) <= symval
|
|
&& symval < (baseaddr + endaddr))
|
|
irel->r_addend += count;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Do this only for PC space relocations. */
|
|
if (addr <= irel->r_offset && irel->r_offset < endaddr)
|
|
irel->r_offset += count;
|
|
}
|
|
|
|
/* Now fix the stab relocations. */
|
|
stab = bfd_get_section_by_name (abfd, ".stab");
|
|
if (stab)
|
|
{
|
|
bfd_byte *stabcontents, *stabend, *stabp;
|
|
bfd_size_type stab_size = stab->rawsize ? stab->rawsize : stab->size;
|
|
|
|
irelbase = elf_section_data (stab)->relocs;
|
|
irelend = irelbase + stab->reloc_count;
|
|
|
|
/* Pull out the contents of the stab section. */
|
|
if (elf_section_data (stab)->this_hdr.contents != NULL)
|
|
stabcontents = elf_section_data (stab)->this_hdr.contents;
|
|
else
|
|
{
|
|
if (!bfd_malloc_and_get_section (abfd, stab, &stabcontents))
|
|
{
|
|
if (stabcontents != NULL)
|
|
free (stabcontents);
|
|
return;
|
|
}
|
|
|
|
/* We need to remember this. */
|
|
elf_section_data (stab)->this_hdr.contents = stabcontents;
|
|
}
|
|
|
|
stabend = stabcontents + stab_size;
|
|
|
|
for (irel = irelbase; irel < irelend; irel++)
|
|
{
|
|
if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE)
|
|
{
|
|
/* Get the value of the symbol referred to by the reloc. */
|
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
|
{
|
|
asection *sym_sec;
|
|
|
|
/* A local symbol. */
|
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
|
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
|
|
|
if (sym_sec == sec)
|
|
{
|
|
const char *name;
|
|
unsigned long strx;
|
|
unsigned char type, other;
|
|
unsigned short desc;
|
|
bfd_vma value;
|
|
bfd_vma baseaddr = BASEADDR (sec);
|
|
bfd_vma symval = BASEADDR (sym_sec) + isym->st_value
|
|
+ irel->r_addend;
|
|
|
|
if ((baseaddr + addr) <= symval
|
|
&& symval <= (baseaddr + endaddr))
|
|
irel->r_addend += count;
|
|
|
|
/* Go hunt up a function and fix its line info if needed. */
|
|
stabp = stabcontents + irel->r_offset - 8;
|
|
|
|
/* Go pullout the stab entry. */
|
|
strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
|
|
type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
|
|
other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
|
|
desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
|
|
value = bfd_h_get_32 (abfd, stabp + VALOFF);
|
|
|
|
name = bfd_get_stab_name (type);
|
|
|
|
if (strcmp (name, "FUN") == 0)
|
|
{
|
|
int function_adjusted = 0;
|
|
|
|
if (symval > (baseaddr + addr))
|
|
/* Not in this function. */
|
|
continue;
|
|
|
|
/* Hey we got a function hit. */
|
|
stabp += STABSIZE;
|
|
for (;stabp < stabend; stabp += STABSIZE)
|
|
{
|
|
/* Go pullout the stab entry. */
|
|
strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
|
|
type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
|
|
other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
|
|
desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
|
|
value = bfd_h_get_32 (abfd, stabp + VALOFF);
|
|
|
|
name = bfd_get_stab_name (type);
|
|
|
|
if (strcmp (name, "FUN") == 0)
|
|
{
|
|
/* Hit another function entry. */
|
|
if (function_adjusted)
|
|
{
|
|
/* Adjust the value. */
|
|
value += count;
|
|
|
|
/* We need to put it back. */
|
|
bfd_h_put_32 (abfd, value,stabp + VALOFF);
|
|
}
|
|
|
|
/* And then bale out. */
|
|
break;
|
|
}
|
|
|
|
if (strcmp (name, "SLINE") == 0)
|
|
{
|
|
/* Got a line entry. */
|
|
if ((baseaddr + addr) <= (symval + value))
|
|
{
|
|
/* Adjust the line entry. */
|
|
value += count;
|
|
|
|
/* We need to put it back. */
|
|
bfd_h_put_32 (abfd, value,stabp + VALOFF);
|
|
function_adjusted = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* When adding an instruction back it is sometimes necessary to move any
|
|
global or local symbol that was referencing the first instruction of
|
|
the moved block to refer to the first instruction of the inserted block.
|
|
|
|
For example adding a PAGE instruction before a CALL or JMP requires
|
|
that any label on the CALL or JMP is moved to the PAGE insn. */
|
|
addr += noadj;
|
|
|
|
/* Adjust the local symbols defined in this section. */
|
|
isymend = isymbuf + symtab_hdr->sh_info;
|
|
for (isym = isymbuf; isym < isymend; isym++)
|
|
{
|
|
if (isym->st_shndx == shndx
|
|
&& addr <= isym->st_value
|
|
&& isym->st_value < endaddr)
|
|
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)
|
|
{
|
|
if (addr <= sym_hash->root.u.def.value
|
|
&& sym_hash->root.u.def.value < endaddr)
|
|
sym_hash->root.u.def.value += count;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/* Delete some bytes from a section while relaxing. */
|
|
|
|
static bfd_boolean
|
|
ip2k_elf_relax_delete_bytes (abfd, sec, addr, count)
|
|
bfd *abfd;
|
|
asection *sec;
|
|
bfd_vma addr;
|
|
int count;
|
|
{
|
|
bfd_byte *contents = elf_section_data (sec)->this_hdr.contents;
|
|
bfd_vma endaddr = sec->size;
|
|
|
|
/* Actually delete the bytes. */
|
|
memmove (contents + addr, contents + addr + count,
|
|
endaddr - addr - count);
|
|
|
|
sec->size -= count;
|
|
|
|
adjust_all_relocations (abfd, sec, addr + count, endaddr, -count, 0);
|
|
return TRUE;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
|
|
/* XXX: The following code is the result of a cut&paste. This unfortunate
|
|
practice is very widespread in the various target back-end files. */
|
|
|
|
/* Set the howto pointer for a IP2K ELF reloc. */
|
|
|
|
static void
|
|
ip2k_info_to_howto_rela (abfd, cache_ptr, dst)
|
|
bfd * abfd ATTRIBUTE_UNUSED;
|
|
arelent * cache_ptr;
|
|
Elf_Internal_Rela * dst;
|
|
{
|
|
unsigned int r_type;
|
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
|
switch (r_type)
|
|
{
|
|
default:
|
|
cache_ptr->howto = & ip2k_elf_howto_table [r_type];
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Perform a single relocation.
|
|
By default we use the standard BFD routines. */
|
|
|
|
static bfd_reloc_status_type
|
|
ip2k_final_link_relocate (howto, input_bfd, input_section, contents, rel,
|
|
relocation)
|
|
reloc_howto_type * howto;
|
|
bfd * input_bfd;
|
|
asection * input_section;
|
|
bfd_byte * contents;
|
|
Elf_Internal_Rela * rel;
|
|
bfd_vma relocation;
|
|
{
|
|
static bfd_vma page_addr = 0;
|
|
|
|
bfd_reloc_status_type r = bfd_reloc_ok;
|
|
switch (howto->type)
|
|
{
|
|
/* Handle data space relocations. */
|
|
case R_IP2K_FR9:
|
|
case R_IP2K_BANK:
|
|
if ((relocation & IP2K_DATA_MASK) == IP2K_DATA_VALUE)
|
|
relocation &= ~IP2K_DATA_MASK;
|
|
else
|
|
r = bfd_reloc_notsupported;
|
|
break;
|
|
|
|
case R_IP2K_LO8DATA:
|
|
case R_IP2K_HI8DATA:
|
|
case R_IP2K_EX8DATA:
|
|
break;
|
|
|
|
/* Handle insn space relocations. */
|
|
case R_IP2K_PAGE3:
|
|
page_addr = BASEADDR (input_section) + rel->r_offset;
|
|
if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
|
|
relocation &= ~IP2K_INSN_MASK;
|
|
else
|
|
r = bfd_reloc_notsupported;
|
|
break;
|
|
|
|
case R_IP2K_ADDR16CJP:
|
|
if (BASEADDR (input_section) + rel->r_offset != page_addr + 2)
|
|
{
|
|
/* No preceding page instruction, verify that it isn't needed. */
|
|
if (PAGENO (relocation + rel->r_addend) !=
|
|
ip2k_nominal_page_bits (input_bfd, input_section,
|
|
rel->r_offset, contents))
|
|
_bfd_error_handler (_("ip2k linker: missing page instruction at 0x%08lx (dest = 0x%08lx)."),
|
|
BASEADDR (input_section) + rel->r_offset,
|
|
relocation + rel->r_addend);
|
|
}
|
|
else if (ip2k_relaxed)
|
|
{
|
|
/* Preceding page instruction. Verify that the page instruction is
|
|
really needed. One reason for the relaxation to miss a page is if
|
|
the section is not marked as executable. */
|
|
if (!ip2k_is_switch_table_128 (input_bfd, input_section, rel->r_offset - 2, contents) &&
|
|
!ip2k_is_switch_table_256 (input_bfd, input_section, rel->r_offset - 2, contents) &&
|
|
(PAGENO (relocation + rel->r_addend) ==
|
|
ip2k_nominal_page_bits (input_bfd, input_section,
|
|
rel->r_offset - 2, contents)))
|
|
_bfd_error_handler (_("ip2k linker: redundant page instruction at 0x%08lx (dest = 0x%08lx)."),
|
|
page_addr,
|
|
relocation + rel->r_addend);
|
|
}
|
|
if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
|
|
relocation &= ~IP2K_INSN_MASK;
|
|
else
|
|
r = bfd_reloc_notsupported;
|
|
break;
|
|
|
|
case R_IP2K_LO8INSN:
|
|
case R_IP2K_HI8INSN:
|
|
case R_IP2K_PC_SKIP:
|
|
if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
|
|
relocation &= ~IP2K_INSN_MASK;
|
|
else
|
|
r = bfd_reloc_notsupported;
|
|
break;
|
|
|
|
case R_IP2K_16:
|
|
/* If this is a relocation involving a TEXT
|
|
symbol, reduce it to a word address. */
|
|
if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
|
|
howto = &ip2k_elf_howto_table[ (int) R_IP2K_TEXT];
|
|
break;
|
|
|
|
/* Pass others through. */
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Only install relocation if above tests did not disqualify it. */
|
|
if (r == bfd_reloc_ok)
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
|
contents, rel->r_offset,
|
|
relocation, rel->r_addend);
|
|
|
|
return r;
|
|
}
|
|
|
|
/* Relocate a IP2K ELF section.
|
|
|
|
The RELOCATE_SECTION function is called by the new ELF backend linker
|
|
to handle the relocations for a section.
|
|
|
|
The relocs are always passed as Rela structures; if the section
|
|
actually uses Rel structures, the r_addend field will always be
|
|
zero.
|
|
|
|
This function is responsible for adjusting the section contents as
|
|
necessary, and (if using Rela relocs and generating a relocatable
|
|
output file) adjusting the reloc addend as necessary.
|
|
|
|
This function does not have to worry about setting the reloc
|
|
address or the reloc symbol index.
|
|
|
|
LOCAL_SYMS is a pointer to the swapped in local symbols.
|
|
|
|
LOCAL_SECTIONS is an array giving the section in the input file
|
|
corresponding to the st_shndx field of each local symbol.
|
|
|
|
The global hash table entry for the global symbols can be found
|
|
via elf_sym_hashes (input_bfd).
|
|
|
|
When generating relocatable output, this function must handle
|
|
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
|
|
going to be the section symbol corresponding to the output
|
|
section, which means that the addend must be adjusted
|
|
accordingly. */
|
|
|
|
static bfd_boolean
|
|
ip2k_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
|
contents, relocs, local_syms, local_sections)
|
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
|
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;
|
|
Elf_Internal_Rela *relend;
|
|
|
|
if (info->relocatable)
|
|
return TRUE;
|
|
|
|
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
|
relend = relocs + input_section->reloc_count;
|
|
|
|
for (rel = relocs; rel < relend; rel ++)
|
|
{
|
|
reloc_howto_type * howto;
|
|
unsigned long r_symndx;
|
|
Elf_Internal_Sym * sym;
|
|
asection * sec;
|
|
struct elf_link_hash_entry * h;
|
|
bfd_vma relocation;
|
|
bfd_reloc_status_type r;
|
|
const char * name = NULL;
|
|
int r_type;
|
|
|
|
/* This is a final link. */
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
howto = ip2k_elf_howto_table + 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 = BASEADDR (sec) + sym->st_value;
|
|
|
|
name = bfd_elf_string_from_elf_section
|
|
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
|
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
|
}
|
|
else
|
|
{
|
|
bfd_boolean warned;
|
|
bfd_boolean unresolved_reloc;
|
|
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
|
r_symndx, symtab_hdr, sym_hashes,
|
|
h, sec, relocation,
|
|
unresolved_reloc, warned);
|
|
|
|
name = h->root.root.string;
|
|
}
|
|
|
|
/* Finally, the sole IP2K-specific part. */
|
|
r = ip2k_final_link_relocate (howto, input_bfd, input_section,
|
|
contents, rel, relocation);
|
|
|
|
if (r != bfd_reloc_ok)
|
|
{
|
|
const char * msg = (const char *) NULL;
|
|
|
|
switch (r)
|
|
{
|
|
case bfd_reloc_overflow:
|
|
r = info->callbacks->reloc_overflow
|
|
(info, name, howto->name, (bfd_vma) 0,
|
|
input_bfd, input_section, rel->r_offset);
|
|
break;
|
|
|
|
case bfd_reloc_undefined:
|
|
r = info->callbacks->undefined_symbol
|
|
(info, name, input_bfd, input_section, rel->r_offset, TRUE);
|
|
break;
|
|
|
|
case bfd_reloc_outofrange:
|
|
msg = _("internal error: out of range error");
|
|
break;
|
|
|
|
/* This is how ip2k_final_link_relocate tells us of a non-kosher
|
|
reference between insn & data address spaces. */
|
|
case bfd_reloc_notsupported:
|
|
if (sym != NULL) /* Only if it's not an unresolved symbol. */
|
|
msg = _("unsupported relocation between data/insn address spaces");
|
|
break;
|
|
|
|
case bfd_reloc_dangerous:
|
|
msg = _("internal error: dangerous relocation");
|
|
break;
|
|
|
|
default:
|
|
msg = _("internal error: unknown error");
|
|
break;
|
|
}
|
|
|
|
if (msg)
|
|
r = info->callbacks->warning
|
|
(info, msg, name, input_bfd, input_section, rel->r_offset);
|
|
|
|
if (! r)
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static asection *
|
|
ip2k_elf_gc_mark_hook (sec, info, rel, h, sym)
|
|
asection *sec;
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
|
Elf_Internal_Rela *rel;
|
|
struct elf_link_hash_entry *h;
|
|
Elf_Internal_Sym *sym;
|
|
{
|
|
if (h != NULL)
|
|
{
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
{
|
|
#if 0
|
|
case R_IP2K_GNU_VTINHERIT:
|
|
case R_IP2K_GNU_VTENTRY:
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
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
|
|
{
|
|
if (!(elf_bad_symtab (sec->owner)
|
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
|
&& sym->st_shndx != SHN_COMMON))
|
|
return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static bfd_boolean
|
|
ip2k_elf_gc_sweep_hook (abfd, info, sec, relocs)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
|
asection *sec ATTRIBUTE_UNUSED;
|
|
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
|
|
{
|
|
/* We don't use got and plt entries for ip2k. */
|
|
return TRUE;
|
|
}
|
|
|
|
#define TARGET_BIG_SYM bfd_elf32_ip2k_vec
|
|
#define TARGET_BIG_NAME "elf32-ip2k"
|
|
|
|
#define ELF_ARCH bfd_arch_ip2k
|
|
#define ELF_MACHINE_CODE EM_IP2K
|
|
#define ELF_MACHINE_ALT1 EM_IP2K_OLD
|
|
#define ELF_MAXPAGESIZE 1 /* No pages on the IP2K. */
|
|
|
|
#define elf_info_to_howto_rel NULL
|
|
#define elf_info_to_howto ip2k_info_to_howto_rela
|
|
|
|
#define elf_backend_can_gc_sections 1
|
|
#define elf_backend_rela_normal 1
|
|
#define elf_backend_gc_mark_hook ip2k_elf_gc_mark_hook
|
|
#define elf_backend_gc_sweep_hook ip2k_elf_gc_sweep_hook
|
|
#define elf_backend_relocate_section ip2k_elf_relocate_section
|
|
|
|
#define elf_symbol_leading_char '_'
|
|
#define bfd_elf32_bfd_reloc_type_lookup ip2k_reloc_type_lookup
|
|
#define bfd_elf32_bfd_relax_section ip2k_elf_relax_section
|
|
|
|
#include "elf32-target.h"
|