old-cross-binutils/bfd/mach-o.c
Alan Modra eea6121ac0 bfd/
* 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.
2004-06-24 04:46:28 +00:00

2229 lines
58 KiB
C

/* Mach-O support for BFD.
Copyright 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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 "mach-o.h"
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "libiberty.h"
#include <ctype.h>
#ifndef BFD_IO_FUNCS
#define BFD_IO_FUNCS 0
#endif
#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
#define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt
#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
#define bfd_mach_o_close_and_cleanup _bfd_generic_close_and_cleanup
#define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook
#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
#define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line
#define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols
#define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
#define bfd_mach_o_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound
#define bfd_mach_o_canonicalize_reloc _bfd_norelocs_canonicalize_reloc
#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
#define bfd_mach_o_bfd_relax_section bfd_generic_relax_section
#define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define bfd_mach_o_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
#define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms
#define bfd_mach_o_bfd_final_link _bfd_generic_final_link
#define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section
#define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach
#define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
#define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
#define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
#define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents
#define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents
#define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections
#define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections
#define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section
#define bfd_mach_o_bfd_discard_group bfd_generic_discard_group
#define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
static bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data
PARAMS ((bfd *, asymbol *, bfd *, asymbol *));
static bfd_boolean bfd_mach_o_bfd_copy_private_section_data
PARAMS ((bfd *, asection *, bfd *, asection *));
static bfd_boolean bfd_mach_o_bfd_copy_private_bfd_data
PARAMS ((bfd *, bfd *));
static long bfd_mach_o_count_symbols
PARAMS ((bfd *));
static long bfd_mach_o_get_symtab_upper_bound
PARAMS ((bfd *));
static long bfd_mach_o_canonicalize_symtab
PARAMS ((bfd *, asymbol **));
static void bfd_mach_o_get_symbol_info
PARAMS ((bfd *, asymbol *, symbol_info *));
static void bfd_mach_o_print_symbol
PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
static void bfd_mach_o_convert_architecture
PARAMS ((bfd_mach_o_cpu_type, bfd_mach_o_cpu_subtype,
enum bfd_architecture *, unsigned long *));
static bfd_boolean bfd_mach_o_write_contents
PARAMS ((bfd *));
static int bfd_mach_o_sizeof_headers
PARAMS ((bfd *, bfd_boolean));
static asymbol * bfd_mach_o_make_empty_symbol
PARAMS ((bfd *));
static int bfd_mach_o_write_header
PARAMS ((bfd *, bfd_mach_o_header *));
static int bfd_mach_o_read_header
PARAMS ((bfd *, bfd_mach_o_header *));
static asection * bfd_mach_o_make_bfd_section
PARAMS ((bfd *, bfd_mach_o_section *));
static int bfd_mach_o_scan_read_section
PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma));
static int bfd_mach_o_scan_write_section
PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma));
static int bfd_mach_o_scan_write_symtab_symbols
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_write_thread
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_dylinker
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_dylib
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_prebound_dylib
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_thread
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_write_symtab
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_dysymtab
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_symtab
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_segment
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_write_segment
PARAMS ((bfd *, bfd_mach_o_load_command *));
static int bfd_mach_o_scan_read_command
PARAMS ((bfd *, bfd_mach_o_load_command *));
static void bfd_mach_o_flatten_sections
PARAMS ((bfd *));
static const char * bfd_mach_o_i386_flavour_string
PARAMS ((unsigned int));
static const char * bfd_mach_o_ppc_flavour_string
PARAMS ((unsigned int));
/* The flags field of a section structure is separated into two parts a section
type and section attributes. The section types are mutually exclusive (it
can only have one type) but the section attributes are not (it may have more
than one attribute). */
#define SECTION_TYPE 0x000000ff /* 256 section types. */
#define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */
/* Constants for the section attributes part of the flags field of a section
structure. */
#define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */
#define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */
#define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */
#define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */
#define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */
#define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */
#define N_STAB 0xe0
#define N_TYPE 0x1e
#define N_EXT 0x01
#define N_UNDF 0x0
#define N_ABS 0x2
#define N_SECT 0xe
#define N_INDR 0xa
bfd_boolean
bfd_mach_o_valid (abfd)
bfd *abfd;
{
if (abfd == NULL || abfd->xvec == NULL)
return 0;
if (! ((abfd->xvec == &mach_o_be_vec)
|| (abfd->xvec == &mach_o_le_vec)
|| (abfd->xvec == &mach_o_fat_vec)))
return 0;
if (abfd->tdata.mach_o_data == NULL)
return 0;
return 1;
}
/* Copy any private info we understand from the input symbol
to the output symbol. */
static bfd_boolean
bfd_mach_o_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
bfd *ibfd ATTRIBUTE_UNUSED;
asymbol *isymbol ATTRIBUTE_UNUSED;
bfd *obfd ATTRIBUTE_UNUSED;
asymbol *osymbol ATTRIBUTE_UNUSED;
{
return TRUE;
}
/* Copy any private info we understand from the input section
to the output section. */
static bfd_boolean
bfd_mach_o_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
bfd *ibfd ATTRIBUTE_UNUSED;
asection *isection ATTRIBUTE_UNUSED;
bfd *obfd ATTRIBUTE_UNUSED;
asection *osection ATTRIBUTE_UNUSED;
{
return TRUE;
}
/* Copy any private info we understand from the input bfd
to the output bfd. */
static bfd_boolean
bfd_mach_o_bfd_copy_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
BFD_ASSERT (bfd_mach_o_valid (ibfd));
BFD_ASSERT (bfd_mach_o_valid (obfd));
obfd->tdata.mach_o_data = ibfd->tdata.mach_o_data;
obfd->tdata.mach_o_data->ibfd = ibfd;
return TRUE;
}
static long
bfd_mach_o_count_symbols (abfd)
bfd *abfd;
{
bfd_mach_o_data_struct *mdata = NULL;
long nsyms = 0;
unsigned long i;
BFD_ASSERT (bfd_mach_o_valid (abfd));
mdata = abfd->tdata.mach_o_data;
for (i = 0; i < mdata->header.ncmds; i++)
if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB)
{
bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab;
nsyms += sym->nsyms;
}
return nsyms;
}
static long
bfd_mach_o_get_symtab_upper_bound (abfd)
bfd *abfd;
{
long nsyms = bfd_mach_o_count_symbols (abfd);
if (nsyms < 0)
return nsyms;
return ((nsyms + 1) * sizeof (asymbol *));
}
static long
bfd_mach_o_canonicalize_symtab (abfd, alocation)
bfd *abfd;
asymbol **alocation;
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
long nsyms = bfd_mach_o_count_symbols (abfd);
asymbol **csym = alocation;
unsigned long i, j;
if (nsyms < 0)
return nsyms;
for (i = 0; i < mdata->header.ncmds; i++)
{
if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB)
{
bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab;
if (bfd_mach_o_scan_read_symtab_symbols (abfd, &mdata->commands[i].command.symtab) != 0)
{
fprintf (stderr, "bfd_mach_o_canonicalize_symtab: unable to load symbols for section %lu\n", i);
return 0;
}
BFD_ASSERT (sym->symbols != NULL);
for (j = 0; j < sym->nsyms; j++)
{
BFD_ASSERT (csym < (alocation + nsyms));
*csym++ = &sym->symbols[j];
}
}
}
*csym++ = NULL;
return nsyms;
}
static void
bfd_mach_o_get_symbol_info (abfd, symbol, ret)
bfd *abfd ATTRIBUTE_UNUSED;
asymbol *symbol;
symbol_info *ret;
{
bfd_symbol_info (symbol, ret);
}
static void
bfd_mach_o_print_symbol (abfd, afile, symbol, how)
bfd *abfd;
PTR afile;
asymbol *symbol;
bfd_print_symbol_type how;
{
FILE *file = (FILE *) afile;
switch (how)
{
case bfd_print_symbol_name:
fprintf (file, "%s", symbol->name);
break;
default:
bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
fprintf (file, " %-5s %s", symbol->section->name, symbol->name);
}
}
static void
bfd_mach_o_convert_architecture (mtype, msubtype, type, subtype)
bfd_mach_o_cpu_type mtype;
bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED;
enum bfd_architecture *type;
unsigned long *subtype;
{
*subtype = bfd_arch_unknown;
switch (mtype)
{
case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break;
case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break;
case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break;
case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break;
case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break;
case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break;
case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break;
case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break;
case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break;
case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break;
case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break;
case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break;
default: *type = bfd_arch_unknown; break;
}
switch (*type)
{
case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break;
case bfd_arch_sparc: *subtype = bfd_mach_sparc; break;
default:
*subtype = bfd_arch_unknown;
}
}
static bfd_boolean
bfd_mach_o_write_contents (abfd)
bfd *abfd;
{
unsigned int i;
asection *s;
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
/* Write data sections first in case they overlap header data to be
written later. */
for (s = abfd->sections; s != (asection *) NULL; s = s->next)
;
#if 0
for (i = 0; i < mdata->header.ncmds; i++)
{
bfd_mach_o_load_command *cur = &mdata->commands[i];
if (cur->type != BFD_MACH_O_LC_SEGMENT)
break;
{
bfd_mach_o_segment_command *seg = &cur->command.segment;
char buf[1024];
bfd_vma nbytes = seg->filesize;
bfd_vma curoff = seg->fileoff;
while (nbytes > 0)
{
bfd_vma thisread = nbytes;
if (thisread > 1024)
thisread = 1024;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bread ((PTR) buf, thisread, abfd) != thisread)
return FALSE;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread)
return FALSE;
nbytes -= thisread;
curoff += thisread;
}
}
}
#endif
/* Now write header information. */
if (bfd_mach_o_write_header (abfd, &mdata->header) != 0)
return FALSE;
for (i = 0; i < mdata->header.ncmds; i++)
{
unsigned char buf[8];
bfd_mach_o_load_command *cur = &mdata->commands[i];
unsigned long typeflag;
typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type;
bfd_h_put_32 (abfd, typeflag, buf);
bfd_h_put_32 (abfd, cur->len, buf + 4);
bfd_seek (abfd, cur->offset, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 8, abfd) != 8)
return FALSE;
switch (cur->type)
{
case BFD_MACH_O_LC_SEGMENT:
if (bfd_mach_o_scan_write_segment (abfd, cur) != 0)
return FALSE;
break;
case BFD_MACH_O_LC_SYMTAB:
if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0)
return FALSE;
break;
case BFD_MACH_O_LC_SYMSEG:
break;
case BFD_MACH_O_LC_THREAD:
case BFD_MACH_O_LC_UNIXTHREAD:
if (bfd_mach_o_scan_write_thread (abfd, cur) != 0)
return FALSE;
break;
case BFD_MACH_O_LC_LOADFVMLIB:
case BFD_MACH_O_LC_IDFVMLIB:
case BFD_MACH_O_LC_IDENT:
case BFD_MACH_O_LC_FVMFILE:
case BFD_MACH_O_LC_PREPAGE:
case BFD_MACH_O_LC_DYSYMTAB:
case BFD_MACH_O_LC_LOAD_DYLIB:
case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
case BFD_MACH_O_LC_ID_DYLIB:
case BFD_MACH_O_LC_LOAD_DYLINKER:
case BFD_MACH_O_LC_ID_DYLINKER:
case BFD_MACH_O_LC_PREBOUND_DYLIB:
case BFD_MACH_O_LC_ROUTINES:
case BFD_MACH_O_LC_SUB_FRAMEWORK:
break;
default:
fprintf (stderr,
"unable to write unknown load command 0x%lx\n",
(long) cur->type);
return FALSE;
}
}
return TRUE;
}
static int
bfd_mach_o_sizeof_headers (a, b)
bfd *a ATTRIBUTE_UNUSED;
bfd_boolean b ATTRIBUTE_UNUSED;
{
return 0;
}
/* Make an empty symbol. This is required only because
bfd_make_section_anyway wants to create a symbol for the section. */
static asymbol *
bfd_mach_o_make_empty_symbol (abfd)
bfd *abfd;
{
asymbol *new;
new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
if (new == NULL)
return new;
new->the_bfd = abfd;
return new;
}
static int
bfd_mach_o_write_header (abfd, header)
bfd *abfd;
bfd_mach_o_header *header;
{
unsigned char buf[28];
bfd_h_put_32 (abfd, header->magic, buf + 0);
bfd_h_put_32 (abfd, header->cputype, buf + 4);
bfd_h_put_32 (abfd, header->cpusubtype, buf + 8);
bfd_h_put_32 (abfd, header->filetype, buf + 12);
bfd_h_put_32 (abfd, header->ncmds, buf + 16);
bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20);
bfd_h_put_32 (abfd, header->flags, buf + 24);
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 28, abfd) != 28)
return -1;
return 0;
}
static int
bfd_mach_o_read_header (abfd, header)
bfd *abfd;
bfd_mach_o_header *header;
{
unsigned char buf[28];
bfd_vma (*get32) (const void *) = NULL;
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, 28, abfd) != 28)
return -1;
if (bfd_getb32 (buf) == 0xfeedface)
{
header->byteorder = BFD_ENDIAN_BIG;
header->magic = 0xfeedface;
get32 = bfd_getb32;
}
else if (bfd_getl32 (buf) == 0xfeedface)
{
header->byteorder = BFD_ENDIAN_LITTLE;
header->magic = 0xfeedface;
get32 = bfd_getl32;
}
else
{
header->byteorder = BFD_ENDIAN_UNKNOWN;
return -1;
}
header->cputype = (*get32) (buf + 4);
header->cpusubtype = (*get32) (buf + 8);
header->filetype = (*get32) (buf + 12);
header->ncmds = (*get32) (buf + 16);
header->sizeofcmds = (*get32) (buf + 20);
header->flags = (*get32) (buf + 24);
return 0;
}
static asection *
bfd_mach_o_make_bfd_section (abfd, section)
bfd *abfd;
bfd_mach_o_section *section;
{
asection *bfdsec;
char *sname;
const char *prefix = "LC_SEGMENT";
unsigned int snamelen;
snamelen = strlen (prefix) + 1
+ strlen (section->segname) + 1
+ strlen (section->sectname) + 1;
sname = (char *) bfd_alloc (abfd, snamelen);
if (sname == NULL)
return NULL;
sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return NULL;
bfdsec->vma = section->addr;
bfdsec->lma = section->addr;
bfdsec->size = section->size;
bfdsec->filepos = section->offset;
bfdsec->alignment_power = section->align;
if (section->flags & BFD_MACH_O_S_ZEROFILL)
bfdsec->flags = SEC_ALLOC;
else
bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
return bfdsec;
}
static int
bfd_mach_o_scan_read_section (abfd, section, offset)
bfd *abfd;
bfd_mach_o_section *section;
bfd_vma offset;
{
unsigned char buf[68];
bfd_seek (abfd, offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 68, abfd) != 68)
return -1;
memcpy (section->sectname, buf, 16);
section->sectname[16] = '\0';
memcpy (section->segname, buf + 16, 16);
section->segname[16] = '\0';
section->addr = bfd_h_get_32 (abfd, buf + 32);
section->size = bfd_h_get_32 (abfd, buf + 36);
section->offset = bfd_h_get_32 (abfd, buf + 40);
section->align = bfd_h_get_32 (abfd, buf + 44);
section->reloff = bfd_h_get_32 (abfd, buf + 48);
section->nreloc = bfd_h_get_32 (abfd, buf + 52);
section->flags = bfd_h_get_32 (abfd, buf + 56);
section->reserved1 = bfd_h_get_32 (abfd, buf + 60);
section->reserved2 = bfd_h_get_32 (abfd, buf + 64);
section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section);
if (section->bfdsection == NULL)
return -1;
return 0;
}
static int
bfd_mach_o_scan_write_section (abfd, section, offset)
bfd *abfd;
bfd_mach_o_section *section;
bfd_vma offset;
{
unsigned char buf[68];
memcpy (buf, section->sectname, 16);
memcpy (buf + 16, section->segname, 16);
bfd_h_put_32 (abfd, section->addr, buf + 32);
bfd_h_put_32 (abfd, section->size, buf + 36);
bfd_h_put_32 (abfd, section->offset, buf + 40);
bfd_h_put_32 (abfd, section->align, buf + 44);
bfd_h_put_32 (abfd, section->reloff, buf + 48);
bfd_h_put_32 (abfd, section->nreloc, buf + 52);
bfd_h_put_32 (abfd, section->flags, buf + 56);
/* bfd_h_put_32 (abfd, section->reserved1, buf + 60); */
/* bfd_h_put_32 (abfd, section->reserved2, buf + 64); */
bfd_seek (abfd, offset, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 68, abfd) != 68)
return -1;
return 0;
}
static int
bfd_mach_o_scan_write_symtab_symbols (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_symtab_command *sym = &command->command.symtab;
asymbol *s = NULL;
unsigned long i;
for (i = 0; i < sym->nsyms; i++)
{
unsigned char buf[12];
bfd_vma symoff = sym->symoff + (i * 12);
unsigned char ntype = 0;
unsigned char nsect = 0;
short ndesc = 0;
s = &sym->symbols[i];
/* Don't set this from the symbol information; use stored values. */
#if 0
if (s->flags & BSF_GLOBAL)
ntype |= N_EXT;
if (s->flags & BSF_DEBUGGING)
ntype |= N_STAB;
if (s->section == bfd_und_section_ptr)
ntype |= N_UNDF;
else if (s->section == bfd_abs_section_ptr)
ntype |= N_ABS;
else
ntype |= N_SECT;
#endif
/* Instead just set from the stored values. */
ntype = (s->udata.i >> 24) & 0xff;
nsect = (s->udata.i >> 16) & 0xff;
ndesc = s->udata.i & 0xffff;
bfd_h_put_32 (abfd, s->name - sym->strtab, buf);
bfd_h_put_8 (abfd, ntype, buf + 4);
bfd_h_put_8 (abfd, nsect, buf + 5);
bfd_h_put_16 (abfd, ndesc, buf + 6);
bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8);
bfd_seek (abfd, symoff, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 12, abfd) != 12)
{
fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n",
12, (unsigned long) symoff);
return -1;
}
}
return 0;
}
int
bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, i)
bfd *abfd;
bfd_mach_o_symtab_command *sym;
asymbol *s;
unsigned long i;
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
bfd_vma symoff = sym->symoff + (i * 12);
unsigned char buf[12];
unsigned char type = -1;
unsigned char section = -1;
short desc = -1;
unsigned long value = -1;
unsigned long stroff = -1;
unsigned int symtype = -1;
BFD_ASSERT (sym->strtab != NULL);
bfd_seek (abfd, symoff, SEEK_SET);
if (bfd_bread ((PTR) buf, 12, abfd) != 12)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n",
12, (unsigned long) symoff);
return -1;
}
stroff = bfd_h_get_32 (abfd, buf);
type = bfd_h_get_8 (abfd, buf + 4);
symtype = (type & 0x0e);
section = bfd_h_get_8 (abfd, buf + 5) - 1;
desc = bfd_h_get_16 (abfd, buf + 6);
value = bfd_h_get_32 (abfd, buf + 8);
if (stroff >= sym->strsize)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n",
(unsigned long) stroff, (unsigned long) sym->strsize);
return -1;
}
s->the_bfd = abfd;
s->name = sym->strtab + stroff;
s->value = value;
s->udata.i = (type << 24) | (section << 16) | desc;
s->flags = 0x0;
if (type & BFD_MACH_O_N_STAB)
{
s->flags |= BSF_DEBUGGING;
s->section = bfd_und_section_ptr;
}
else
{
if (type & BFD_MACH_O_N_PEXT)
{
type &= ~BFD_MACH_O_N_PEXT;
s->flags |= BSF_GLOBAL;
}
if (type & BFD_MACH_O_N_EXT)
{
type &= ~BFD_MACH_O_N_EXT;
s->flags |= BSF_GLOBAL;
}
switch (symtype)
{
case BFD_MACH_O_N_UNDF:
s->section = bfd_und_section_ptr;
break;
case BFD_MACH_O_N_PBUD:
s->section = bfd_und_section_ptr;
break;
case BFD_MACH_O_N_ABS:
s->section = bfd_abs_section_ptr;
break;
case BFD_MACH_O_N_SECT:
if ((section > 0) && (section <= mdata->nsects))
{
s->section = mdata->sections[section - 1]->bfdsection;
s->value = s->value - mdata->sections[section - 1]->addr;
}
else
{
/* Mach-O uses 0 to mean "no section"; not an error. */
if (section != 0)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
"symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n",
s->name, section, mdata->nsects);
}
s->section = bfd_und_section_ptr;
}
break;
case BFD_MACH_O_N_INDR:
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
"symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n",
s->name);
s->section = bfd_und_section_ptr;
break;
default:
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
"symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n",
s->name, symtype);
s->section = bfd_und_section_ptr;
break;
}
}
return 0;
}
int
bfd_mach_o_scan_read_symtab_strtab (abfd, sym)
bfd *abfd;
bfd_mach_o_symtab_command *sym;
{
BFD_ASSERT (sym->strtab == NULL);
if (abfd->flags & BFD_IN_MEMORY)
{
struct bfd_in_memory *b;
b = (struct bfd_in_memory *) abfd->iostream;
if ((sym->stroff + sym->strsize) > b->size)
{
bfd_set_error (bfd_error_file_truncated);
return -1;
}
sym->strtab = b->buffer + sym->stroff;
return 0;
}
sym->strtab = bfd_alloc (abfd, sym->strsize);
if (sym->strtab == NULL)
return -1;
bfd_seek (abfd, sym->stroff, SEEK_SET);
if (bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_strtab: unable to read %lu bytes at %lu\n",
sym->strsize, sym->stroff);
return -1;
}
return 0;
}
int
bfd_mach_o_scan_read_symtab_symbols (abfd, sym)
bfd *abfd;
bfd_mach_o_symtab_command *sym;
{
unsigned long i;
int ret;
BFD_ASSERT (sym->symbols == NULL);
sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (asymbol));
if (sym->symbols == NULL)
{
fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n");
return -1;
}
ret = bfd_mach_o_scan_read_symtab_strtab (abfd, sym);
if (ret != 0)
return ret;
for (i = 0; i < sym->nsyms; i++)
{
ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i);
if (ret != 0)
return ret;
}
return 0;
}
int
bfd_mach_o_scan_read_dysymtab_symbol (abfd, dysym, sym, s, i)
bfd *abfd;
bfd_mach_o_dysymtab_command *dysym;
bfd_mach_o_symtab_command *sym;
asymbol *s;
unsigned long i;
{
unsigned long isymoff = dysym->indirectsymoff + (i * 4);
unsigned long symindex;
unsigned char buf[4];
BFD_ASSERT (i < dysym->nindirectsyms);
bfd_seek (abfd, isymoff, SEEK_SET);
if (bfd_bread ((PTR) buf, 4, abfd) != 4)
{
fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n",
(unsigned long) 4, isymoff);
return -1;
}
symindex = bfd_h_get_32 (abfd, buf);
return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex);
}
static const char *
bfd_mach_o_i386_flavour_string (flavour)
unsigned int flavour;
{
switch ((int) flavour)
{
case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE";
case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE";
case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE";
case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE";
case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE";
case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE";
case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE";
case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE";
case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE";
case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE";
case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE";
case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE";
default: return "UNKNOWN";
}
}
static const char *
bfd_mach_o_ppc_flavour_string (flavour)
unsigned int flavour;
{
switch ((int) flavour)
{
case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
default: return "UNKNOWN";
}
}
static int
bfd_mach_o_scan_write_thread (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_thread_command *cmd = &command->command.thread;
unsigned int i;
unsigned char buf[8];
bfd_vma offset;
unsigned int nflavours;
BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
|| (command->type == BFD_MACH_O_LC_UNIXTHREAD));
offset = 8;
nflavours = 0;
for (i = 0; i < cmd->nflavours; i++)
{
BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8));
bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf);
bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4);
bfd_seek (abfd, command->offset + offset, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 8, abfd) != 8)
return -1;
offset += cmd->flavours[i].size + 8;
}
return 0;
}
static int
bfd_mach_o_scan_read_dylinker (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
unsigned char buf[4];
unsigned int nameoff;
asection *bfdsec;
char *sname;
const char *prefix;
BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
|| (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 4, abfd) != 4)
return -1;
nameoff = bfd_h_get_32 (abfd, buf + 0);
cmd->name_offset = command->offset + nameoff;
cmd->name_len = command->len - nameoff;
if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)
prefix = "LC_LOAD_DYLINKER";
else if (command->type == BFD_MACH_O_LC_ID_DYLINKER)
prefix = "LC_ID_DYLINKER";
else
abort ();
sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
return -1;
strcpy (sname, prefix);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return -1;
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = command->len - 8;
bfdsec->filepos = command->offset + 8;
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
cmd->section = bfdsec;
return 0;
}
static int
bfd_mach_o_scan_read_dylib (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_dylib_command *cmd = &command->command.dylib;
unsigned char buf[16];
unsigned int nameoff;
asection *bfdsec;
char *sname;
const char *prefix;
BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB)
|| (command->type == BFD_MACH_O_LC_LOAD_DYLIB)
|| (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB));
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 16, abfd) != 16)
return -1;
nameoff = bfd_h_get_32 (abfd, buf + 0);
cmd->timestamp = bfd_h_get_32 (abfd, buf + 4);
cmd->current_version = bfd_h_get_32 (abfd, buf + 8);
cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12);
cmd->name_offset = command->offset + nameoff;
cmd->name_len = command->len - nameoff;
if (command->type == BFD_MACH_O_LC_LOAD_DYLIB)
prefix = "LC_LOAD_DYLIB";
else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)
prefix = "LC_LOAD_WEAK_DYLIB";
else if (command->type == BFD_MACH_O_LC_ID_DYLIB)
prefix = "LC_ID_DYLIB";
else
abort ();
sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
return -1;
strcpy (sname, prefix);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return -1;
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = command->len - 8;
bfdsec->filepos = command->offset + 8;
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
cmd->section = bfdsec;
return 0;
}
static int
bfd_mach_o_scan_read_prebound_dylib (abfd, command)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_mach_o_load_command *command ATTRIBUTE_UNUSED;
{
/* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
return 0;
}
static int
bfd_mach_o_scan_read_thread (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_data_struct *mdata = NULL;
bfd_mach_o_thread_command *cmd = &command->command.thread;
unsigned char buf[8];
bfd_vma offset;
unsigned int nflavours;
unsigned int i;
BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
|| (command->type == BFD_MACH_O_LC_UNIXTHREAD));
BFD_ASSERT (bfd_mach_o_valid (abfd));
mdata = abfd->tdata.mach_o_data;
offset = 8;
nflavours = 0;
while (offset != command->len)
{
if (offset >= command->len)
return -1;
bfd_seek (abfd, command->offset + offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 8, abfd) != 8)
return -1;
offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4;
nflavours++;
}
cmd->flavours =
((bfd_mach_o_thread_flavour *)
bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour)));
if (cmd->flavours == NULL)
return -1;
cmd->nflavours = nflavours;
offset = 8;
nflavours = 0;
while (offset != command->len)
{
if (offset >= command->len)
return -1;
if (nflavours >= cmd->nflavours)
return -1;
bfd_seek (abfd, command->offset + offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 8, abfd) != 8)
return -1;
cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf);
cmd->flavours[nflavours].offset = command->offset + offset + 8;
cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4;
offset += cmd->flavours[nflavours].size + 8;
nflavours++;
}
for (i = 0; i < nflavours; i++)
{
asection *bfdsec;
unsigned int snamelen;
char *sname;
const char *flavourstr;
const char *prefix = "LC_THREAD";
unsigned int j = 0;
switch (mdata->header.cputype)
{
case BFD_MACH_O_CPU_TYPE_POWERPC:
flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
break;
case BFD_MACH_O_CPU_TYPE_I386:
flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
break;
default:
flavourstr = "UNKNOWN_ARCHITECTURE";
break;
}
snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
sname = (char *) bfd_alloc (abfd, snamelen);
if (sname == NULL)
return -1;
for (;;)
{
sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
if (bfd_get_section_by_name (abfd, sname) == NULL)
break;
j++;
}
bfdsec = bfd_make_section (abfd, sname);
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = cmd->flavours[i].size;
bfdsec->filepos = cmd->flavours[i].offset;
bfdsec->alignment_power = 0x0;
bfdsec->flags = SEC_HAS_CONTENTS;
cmd->section = bfdsec;
}
return 0;
}
static int
bfd_mach_o_scan_write_symtab (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_symtab_command *seg = &command->command.symtab;
unsigned char buf[16];
BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
bfd_h_put_32 (abfd, seg->symoff, buf);
bfd_h_put_32 (abfd, seg->nsyms, buf + 4);
bfd_h_put_32 (abfd, seg->stroff, buf + 8);
bfd_h_put_32 (abfd, seg->strsize, buf + 12);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 16, abfd) != 16)
return -1;
if (bfd_mach_o_scan_write_symtab_symbols (abfd, command) != 0)
return -1;
return 0;
}
static int
bfd_mach_o_scan_read_dysymtab (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab;
unsigned char buf[72];
BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 72, abfd) != 72)
return -1;
seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0);
seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4);
seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8);
seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12);
seg->iundefsym = bfd_h_get_32 (abfd, buf + 16);
seg->nundefsym = bfd_h_get_32 (abfd, buf + 20);
seg->tocoff = bfd_h_get_32 (abfd, buf + 24);
seg->ntoc = bfd_h_get_32 (abfd, buf + 28);
seg->modtaboff = bfd_h_get_32 (abfd, buf + 32);
seg->nmodtab = bfd_h_get_32 (abfd, buf + 36);
seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40);
seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44);
seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48);
seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52);
seg->extreloff = bfd_h_get_32 (abfd, buf + 56);
seg->nextrel = bfd_h_get_32 (abfd, buf + 60);
seg->locreloff = bfd_h_get_32 (abfd, buf + 64);
seg->nlocrel = bfd_h_get_32 (abfd, buf + 68);
return 0;
}
static int
bfd_mach_o_scan_read_symtab (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
bfd_mach_o_symtab_command *seg = &command->command.symtab;
unsigned char buf[16];
asection *bfdsec;
char *sname;
const char *prefix = "LC_SYMTAB.stabs";
BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 16, abfd) != 16)
return -1;
seg->symoff = bfd_h_get_32 (abfd, buf);
seg->nsyms = bfd_h_get_32 (abfd, buf + 4);
seg->stroff = bfd_h_get_32 (abfd, buf + 8);
seg->strsize = bfd_h_get_32 (abfd, buf + 12);
seg->symbols = NULL;
seg->strtab = NULL;
sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
return -1;
strcpy (sname, prefix);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return -1;
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = seg->nsyms * 12;
bfdsec->filepos = seg->symoff;
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
seg->stabs_segment = bfdsec;
prefix = "LC_SYMTAB.stabstr";
sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1);
if (sname == NULL)
return -1;
strcpy (sname, prefix);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return -1;
bfdsec->vma = 0;
bfdsec->lma = 0;
bfdsec->size = seg->strsize;
bfdsec->filepos = seg->stroff;
bfdsec->alignment_power = 0;
bfdsec->flags = SEC_HAS_CONTENTS;
seg->stabstr_segment = bfdsec;
return 0;
}
static int
bfd_mach_o_scan_read_segment (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
unsigned char buf[48];
bfd_mach_o_segment_command *seg = &command->command.segment;
unsigned long i;
asection *bfdsec;
char *sname;
const char *prefix = "LC_SEGMENT";
unsigned int snamelen;
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bread ((PTR) buf, 48, abfd) != 48)
return -1;
memcpy (seg->segname, buf, 16);
seg->vmaddr = bfd_h_get_32 (abfd, buf + 16);
seg->vmsize = bfd_h_get_32 (abfd, buf + 20);
seg->fileoff = bfd_h_get_32 (abfd, buf + 24);
seg->filesize = bfd_h_get_32 (abfd, buf + 28);
/* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */
/* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */
seg->nsects = bfd_h_get_32 (abfd, buf + 40);
seg->flags = bfd_h_get_32 (abfd, buf + 44);
snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1;
sname = (char *) bfd_alloc (abfd, snamelen);
if (sname == NULL)
return -1;
sprintf (sname, "%s.%s", prefix, seg->segname);
bfdsec = bfd_make_section_anyway (abfd, sname);
if (bfdsec == NULL)
return -1;
bfdsec->vma = seg->vmaddr;
bfdsec->lma = seg->vmaddr;
bfdsec->size = seg->filesize;
bfdsec->filepos = seg->fileoff;
bfdsec->alignment_power = 0x0;
bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE;
seg->segment = bfdsec;
if (seg->nsects != 0)
{
seg->sections =
((bfd_mach_o_section *)
bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section)));
if (seg->sections == NULL)
return -1;
for (i = 0; i < seg->nsects; i++)
{
bfd_vma segoff = command->offset + 48 + 8 + (i * 68);
if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i],
segoff) != 0)
return -1;
}
}
return 0;
}
static int
bfd_mach_o_scan_write_segment (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
unsigned char buf[48];
bfd_mach_o_segment_command *seg = &command->command.segment;
unsigned long i;
BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
memcpy (buf, seg->segname, 16);
bfd_h_put_32 (abfd, seg->vmaddr, buf + 16);
bfd_h_put_32 (abfd, seg->vmsize, buf + 20);
bfd_h_put_32 (abfd, seg->fileoff, buf + 24);
bfd_h_put_32 (abfd, seg->filesize, buf + 28);
bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32);
bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36);
bfd_h_put_32 (abfd, seg->nsects, buf + 40);
bfd_h_put_32 (abfd, seg->flags, buf + 44);
bfd_seek (abfd, command->offset + 8, SEEK_SET);
if (bfd_bwrite ((PTR) buf, 48, abfd) != 48)
return -1;
{
char buf[1024];
bfd_vma nbytes = seg->filesize;
bfd_vma curoff = seg->fileoff;
while (nbytes > 0)
{
bfd_vma thisread = nbytes;
if (thisread > 1024)
thisread = 1024;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bread ((PTR) buf, thisread, abfd) != thisread)
return -1;
bfd_seek (abfd, curoff, SEEK_SET);
if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread)
return -1;
nbytes -= thisread;
curoff += thisread;
}
}
for (i = 0; i < seg->nsects; i++)
{
bfd_vma segoff = command->offset + 48 + 8 + (i * 68);
if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0)
return -1;
}
return 0;
}
static int
bfd_mach_o_scan_read_command (abfd, command)
bfd *abfd;
bfd_mach_o_load_command *command;
{
unsigned char buf[8];
bfd_seek (abfd, command->offset, SEEK_SET);
if (bfd_bread ((PTR) buf, 8, abfd) != 8)
return -1;
command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD);
command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD
? 1 : 0);
command->len = bfd_h_get_32 (abfd, buf + 4);
switch (command->type)
{
case BFD_MACH_O_LC_SEGMENT:
if (bfd_mach_o_scan_read_segment (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_SYMTAB:
if (bfd_mach_o_scan_read_symtab (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_SYMSEG:
break;
case BFD_MACH_O_LC_THREAD:
case BFD_MACH_O_LC_UNIXTHREAD:
if (bfd_mach_o_scan_read_thread (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_LOAD_DYLINKER:
case BFD_MACH_O_LC_ID_DYLINKER:
if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_LOAD_DYLIB:
case BFD_MACH_O_LC_ID_DYLIB:
case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
if (bfd_mach_o_scan_read_dylib (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_PREBOUND_DYLIB:
if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_LOADFVMLIB:
case BFD_MACH_O_LC_IDFVMLIB:
case BFD_MACH_O_LC_IDENT:
case BFD_MACH_O_LC_FVMFILE:
case BFD_MACH_O_LC_PREPAGE:
case BFD_MACH_O_LC_ROUTINES:
case BFD_MACH_O_LC_SUB_FRAMEWORK:
break;
case BFD_MACH_O_LC_DYSYMTAB:
if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0)
return -1;
break;
case BFD_MACH_O_LC_SUB_UMBRELLA:
case BFD_MACH_O_LC_SUB_CLIENT:
case BFD_MACH_O_LC_SUB_LIBRARY:
case BFD_MACH_O_LC_TWOLEVEL_HINTS:
case BFD_MACH_O_LC_PREBIND_CKSUM:
break;
default:
fprintf (stderr, "unable to read unknown load command 0x%lx\n",
(unsigned long) command->type);
break;
}
return 0;
}
static void
bfd_mach_o_flatten_sections (abfd)
bfd *abfd;
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
long csect = 0;
unsigned long i, j;
mdata->nsects = 0;
for (i = 0; i < mdata->header.ncmds; i++)
{
if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT)
{
bfd_mach_o_segment_command *seg;
seg = &mdata->commands[i].command.segment;
mdata->nsects += seg->nsects;
}
}
mdata->sections = bfd_alloc (abfd,
mdata->nsects * sizeof (bfd_mach_o_section *));
csect = 0;
for (i = 0; i < mdata->header.ncmds; i++)
{
if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT)
{
bfd_mach_o_segment_command *seg;
seg = &mdata->commands[i].command.segment;
BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
for (j = 0; j < seg->nsects; j++)
mdata->sections[csect++] = &seg->sections[j];
}
}
}
int
bfd_mach_o_scan_start_address (abfd)
bfd *abfd;
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
bfd_mach_o_thread_command *cmd = NULL;
unsigned long i;
for (i = 0; i < mdata->header.ncmds; i++)
{
if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
(mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
{
if (cmd == NULL)
cmd = &mdata->commands[i].command.thread;
else
return 0;
}
}
if (cmd == NULL)
return 0;
for (i = 0; i < cmd->nflavours; i++)
{
if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
&& (cmd->flavours[i].flavour
== (unsigned long) BFD_MACH_O_i386_THREAD_STATE))
{
unsigned char buf[4];
bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET);
if (bfd_bread (buf, 4, abfd) != 4)
return -1;
abfd->start_address = bfd_h_get_32 (abfd, buf);
}
else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
&& (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
{
unsigned char buf[4];
bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET);
if (bfd_bread (buf, 4, abfd) != 4)
return -1;
abfd->start_address = bfd_h_get_32 (abfd, buf);
}
}
return 0;
}
int
bfd_mach_o_scan (abfd, header, mdata)
bfd *abfd;
bfd_mach_o_header *header;
bfd_mach_o_data_struct *mdata;
{
unsigned int i;
enum bfd_architecture cputype;
unsigned long cpusubtype;
mdata->header = *header;
mdata->symbols = NULL;
abfd->flags = (abfd->xvec->object_flags
| (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS)));
abfd->tdata.mach_o_data = mdata;
bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
&cputype, &cpusubtype);
if (cputype == bfd_arch_unknown)
{
fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n",
header->cputype, header->cpusubtype);
return -1;
}
bfd_set_arch_mach (abfd, cputype, cpusubtype);
if (header->ncmds != 0)
{
mdata->commands =
((bfd_mach_o_load_command *)
bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command)));
if (mdata->commands == NULL)
return -1;
for (i = 0; i < header->ncmds; i++)
{
bfd_mach_o_load_command *cur = &mdata->commands[i];
if (i == 0)
cur->offset = 28;
else
{
bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
cur->offset = prev->offset + prev->len;
}
if (bfd_mach_o_scan_read_command (abfd, cur) < 0)
return -1;
}
}
if (bfd_mach_o_scan_start_address (abfd) < 0)
{
#if 0
fprintf (stderr, "bfd_mach_o_scan: unable to scan start address: %s\n",
bfd_errmsg (bfd_get_error ()));
abfd->tdata.mach_o_data = NULL;
return -1;
#endif
}
bfd_mach_o_flatten_sections (abfd);
return 0;
}
bfd_boolean
bfd_mach_o_mkobject (abfd)
bfd *abfd;
{
bfd_mach_o_data_struct *mdata = NULL;
mdata = ((bfd_mach_o_data_struct *)
bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct)));
if (mdata == NULL)
return FALSE;
abfd->tdata.mach_o_data = mdata;
mdata->header.magic = 0;
mdata->header.cputype = 0;
mdata->header.cpusubtype = 0;
mdata->header.filetype = 0;
mdata->header.ncmds = 0;
mdata->header.sizeofcmds = 0;
mdata->header.flags = 0;
mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
mdata->commands = NULL;
mdata->nsymbols = 0;
mdata->symbols = NULL;
mdata->nsects = 0;
mdata->sections = NULL;
mdata->ibfd = NULL;
return TRUE;
}
const bfd_target *
bfd_mach_o_object_p (abfd)
bfd *abfd;
{
struct bfd_preserve preserve;
bfd_mach_o_header header;
preserve.marker = NULL;
if (bfd_mach_o_read_header (abfd, &header) != 0)
goto wrong;
if (! (header.byteorder == BFD_ENDIAN_BIG
|| header.byteorder == BFD_ENDIAN_LITTLE))
{
fprintf (stderr, "unknown header byte-order value 0x%lx\n",
(long) header.byteorder);
goto wrong;
}
if (! ((header.byteorder == BFD_ENDIAN_BIG
&& abfd->xvec->byteorder == BFD_ENDIAN_BIG
&& abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
|| (header.byteorder == BFD_ENDIAN_LITTLE
&& abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
&& abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
goto wrong;
preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
if (preserve.marker == NULL
|| !bfd_preserve_save (abfd, &preserve))
goto fail;
if (bfd_mach_o_scan (abfd, &header,
(bfd_mach_o_data_struct *) preserve.marker) != 0)
goto wrong;
bfd_preserve_finish (abfd, &preserve);
return abfd->xvec;
wrong:
bfd_set_error (bfd_error_wrong_format);
fail:
if (preserve.marker != NULL)
bfd_preserve_restore (abfd, &preserve);
return NULL;
}
const bfd_target *
bfd_mach_o_core_p (abfd)
bfd *abfd;
{
struct bfd_preserve preserve;
bfd_mach_o_header header;
preserve.marker = NULL;
if (bfd_mach_o_read_header (abfd, &header) != 0)
goto wrong;
if (! (header.byteorder == BFD_ENDIAN_BIG
|| header.byteorder == BFD_ENDIAN_LITTLE))
{
fprintf (stderr, "unknown header byte-order value 0x%lx\n",
(long) header.byteorder);
abort ();
}
if (! ((header.byteorder == BFD_ENDIAN_BIG
&& abfd->xvec->byteorder == BFD_ENDIAN_BIG
&& abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
|| (header.byteorder == BFD_ENDIAN_LITTLE
&& abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
&& abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
goto wrong;
if (header.filetype != BFD_MACH_O_MH_CORE)
goto wrong;
preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
if (preserve.marker == NULL
|| !bfd_preserve_save (abfd, &preserve))
goto fail;
if (bfd_mach_o_scan (abfd, &header,
(bfd_mach_o_data_struct *) preserve.marker) != 0)
goto wrong;
bfd_preserve_finish (abfd, &preserve);
return abfd->xvec;
wrong:
bfd_set_error (bfd_error_wrong_format);
fail:
if (preserve.marker != NULL)
bfd_preserve_restore (abfd, &preserve);
return NULL;
}
typedef struct mach_o_fat_archentry
{
unsigned long cputype;
unsigned long cpusubtype;
unsigned long offset;
unsigned long size;
unsigned long align;
bfd *abfd;
} mach_o_fat_archentry;
typedef struct mach_o_fat_data_struct
{
unsigned long magic;
unsigned long nfat_arch;
mach_o_fat_archentry *archentries;
} mach_o_fat_data_struct;
const bfd_target *
bfd_mach_o_archive_p (abfd)
bfd *abfd;
{
mach_o_fat_data_struct *adata = NULL;
unsigned char buf[20];
unsigned long i;
bfd_seek (abfd, 0, SEEK_SET);
if (bfd_bread ((PTR) buf, 8, abfd) != 8)
goto error;
adata = (mach_o_fat_data_struct *)
bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
if (adata == NULL)
goto error;
adata->magic = bfd_getb32 (buf);
adata->nfat_arch = bfd_getb32 (buf + 4);
if (adata->magic != 0xcafebabe)
goto error;
adata->archentries = (mach_o_fat_archentry *)
bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
if (adata->archentries == NULL)
goto error;
for (i = 0; i < adata->nfat_arch; i++)
{
bfd_seek (abfd, 8 + 20 * i, SEEK_SET);
if (bfd_bread ((PTR) buf, 20, abfd) != 20)
goto error;
adata->archentries[i].cputype = bfd_getb32 (buf);
adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4);
adata->archentries[i].offset = bfd_getb32 (buf + 8);
adata->archentries[i].size = bfd_getb32 (buf + 12);
adata->archentries[i].align = bfd_getb32 (buf + 16);
adata->archentries[i].abfd = NULL;
}
abfd->tdata.mach_o_fat_data = adata;
return abfd->xvec;
error:
if (adata != NULL)
bfd_release (abfd, adata);
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
bfd *
bfd_mach_o_openr_next_archived_file (archive, prev)
bfd *archive;
bfd *prev;
{
mach_o_fat_data_struct *adata;
mach_o_fat_archentry *entry = NULL;
unsigned long i;
adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
BFD_ASSERT (adata != NULL);
/* Find index of previous entry. */
if (prev == NULL)
i = 0; /* Start at first one. */
else
{
for (i = 0; i < adata->nfat_arch; i++)
{
if (adata->archentries[i].abfd == prev)
break;
}
if (i == adata->nfat_arch)
{
/* Not found. */
bfd_set_error (bfd_error_bad_value);
return NULL;
}
i++; /* Get next entry. */
}
if (i >= adata->nfat_arch)
{
bfd_set_error (bfd_error_no_more_archived_files);
return NULL;
}
entry = &adata->archentries[i];
if (entry->abfd == NULL)
{
bfd *nbfd = _bfd_new_bfd_contained_in (archive);
char *s = NULL;
if (nbfd == NULL)
return NULL;
nbfd->origin = entry->offset;
s = bfd_malloc (strlen (archive->filename) + 1);
if (s == NULL)
return NULL;
strcpy (s, archive->filename);
nbfd->filename = s;
nbfd->iostream = NULL;
entry->abfd = nbfd;
}
return entry->abfd;
}
int
bfd_mach_o_lookup_section (abfd, section, mcommand, msection)
bfd *abfd;
asection *section;
bfd_mach_o_load_command **mcommand;
bfd_mach_o_section **msection;
{
struct mach_o_data_struct *md = abfd->tdata.mach_o_data;
unsigned int i, j, num;
bfd_mach_o_load_command *ncmd = NULL;
bfd_mach_o_section *nsect = NULL;
BFD_ASSERT (mcommand != NULL);
BFD_ASSERT (msection != NULL);
num = 0;
for (i = 0; i < md->header.ncmds; i++)
{
struct bfd_mach_o_load_command *cmd = &md->commands[i];
struct bfd_mach_o_segment_command *seg = NULL;
if (cmd->type != BFD_MACH_O_LC_SEGMENT)
continue;
seg = &cmd->command.segment;
if (seg->segment == section)
{
if (num == 0)
ncmd = cmd;
num++;
}
for (j = 0; j < seg->nsects; j++)
{
struct bfd_mach_o_section *sect = &seg->sections[j];
if (sect->bfdsection == section)
{
if (num == 0)
nsect = sect;
num++;
}
}
}
*mcommand = ncmd;
*msection = nsect;
return num;
}
int
bfd_mach_o_lookup_command (abfd, type, mcommand)
bfd *abfd;
bfd_mach_o_load_command_type type;
bfd_mach_o_load_command **mcommand;
{
struct mach_o_data_struct *md = NULL;
bfd_mach_o_load_command *ncmd = NULL;
unsigned int i, num;
md = abfd->tdata.mach_o_data;
BFD_ASSERT (md != NULL);
BFD_ASSERT (mcommand != NULL);
num = 0;
for (i = 0; i < md->header.ncmds; i++)
{
struct bfd_mach_o_load_command *cmd = &md->commands[i];
if (cmd->type != type)
continue;
if (num == 0)
ncmd = cmd;
num++;
}
*mcommand = ncmd;
return num;
}
unsigned long
bfd_mach_o_stack_addr (type)
enum bfd_mach_o_cpu_type type;
{
switch (type)
{
case BFD_MACH_O_CPU_TYPE_MC680x0:
return 0x04000000;
case BFD_MACH_O_CPU_TYPE_MC88000:
return 0xffffe000;
case BFD_MACH_O_CPU_TYPE_POWERPC:
return 0xc0000000;
case BFD_MACH_O_CPU_TYPE_I386:
return 0xc0000000;
case BFD_MACH_O_CPU_TYPE_SPARC:
return 0xf0000000;
case BFD_MACH_O_CPU_TYPE_I860:
return 0;
case BFD_MACH_O_CPU_TYPE_HPPA:
return 0xc0000000 - 0x04000000;
default:
return 0;
}
}
int
bfd_mach_o_core_fetch_environment (abfd, rbuf, rlen)
bfd *abfd;
unsigned char **rbuf;
unsigned int *rlen;
{
bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data;
unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
unsigned int i = 0;
for (i = 0; i < mdata->header.ncmds; i++)
{
bfd_mach_o_load_command *cur = &mdata->commands[i];
bfd_mach_o_segment_command *seg = NULL;
if (cur->type != BFD_MACH_O_LC_SEGMENT)
continue;
seg = &cur->command.segment;
if ((seg->vmaddr + seg->vmsize) == stackaddr)
{
unsigned long start = seg->fileoff;
unsigned long end = seg->fileoff + seg->filesize;
unsigned char *buf = bfd_malloc (1024);
unsigned long size = 1024;
for (;;)
{
bfd_size_type nread = 0;
unsigned long offset;
int found_nonnull = 0;
if (size > (end - start))
size = (end - start);
buf = bfd_realloc (buf, size);
bfd_seek (abfd, end - size, SEEK_SET);
nread = bfd_bread (buf, size, abfd);
if (nread != size)
return -1;
for (offset = 4; offset <= size; offset += 4)
{
unsigned long val;
val = *((unsigned long *) (buf + size - offset));
if (! found_nonnull)
{
if (val != 0)
found_nonnull = 1;
}
else if (val == 0x0)
{
unsigned long bottom;
unsigned long top;
bottom = seg->fileoff + seg->filesize - offset;
top = seg->fileoff + seg->filesize - 4;
*rbuf = bfd_malloc (top - bottom);
*rlen = top - bottom;
memcpy (*rbuf, buf + size - *rlen, *rlen);
return 0;
}
}
if (size == (end - start))
break;
size *= 2;
}
}
}
return -1;
}
char *
bfd_mach_o_core_file_failing_command (abfd)
bfd *abfd;
{
unsigned char *buf = NULL;
unsigned int len = 0;
int ret = -1;
ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
if (ret < 0)
return NULL;
return buf;
}
int
bfd_mach_o_core_file_failing_signal (abfd)
bfd *abfd ATTRIBUTE_UNUSED;
{
return 0;
}
bfd_boolean
bfd_mach_o_core_file_matches_executable_p (core_bfd, exec_bfd)
bfd *core_bfd ATTRIBUTE_UNUSED;
bfd *exec_bfd ATTRIBUTE_UNUSED;
{
return TRUE;
}
#define TARGET_NAME mach_o_be_vec
#define TARGET_STRING "mach-o-be"
#define TARGET_BIG_ENDIAN 1
#define TARGET_ARCHIVE 0
#include "mach-o-target.c"
#undef TARGET_NAME
#undef TARGET_STRING
#undef TARGET_BIG_ENDIAN
#undef TARGET_ARCHIVE
#define TARGET_NAME mach_o_le_vec
#define TARGET_STRING "mach-o-le"
#define TARGET_BIG_ENDIAN 0
#define TARGET_ARCHIVE 0
#include "mach-o-target.c"
#undef TARGET_NAME
#undef TARGET_STRING
#undef TARGET_BIG_ENDIAN
#undef TARGET_ARCHIVE
#define TARGET_NAME mach_o_fat_vec
#define TARGET_STRING "mach-o-fat"
#define TARGET_BIG_ENDIAN 1
#define TARGET_ARCHIVE 1
#include "mach-o-target.c"
#undef TARGET_NAME
#undef TARGET_STRING
#undef TARGET_BIG_ENDIAN
#undef TARGET_ARCHIVE