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2021-10-21-Waddress warning in ldelf.cAlan Modra1-1/+0
ldelf.c: In function 'ldelf_after_open': ldelf.c:1049:43: warning: the comparison will always evaluate as 'true' for the address of 'elf_header' will never be NULL [-Waddress] 1049 | && elf_tdata (abfd)->elf_header != NULL | ^~ In file included from ldelf.c:37: ../bfd/elf-bfd.h:1957:21: note: 'elf_header' declared here 1957 | Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */ * ldelf.c (ldelf_after_open): Remove useless elf_header test.
2021-06-11PR27952, Disallow ET_DYN DF_1_PIE linker inputAlan Modra1-1/+3
This patch adds a new elf_tdata flag, is_pie, set during the linker's open_input_bfds processing. The flag is then used to reject attempts to link a PIE as if it were a shared library. bfd/ PR 27952 * elf-bfd.h (struct elf_obj_tdata): Add is_pie. * elflink.c (elf_link_add_object_symbols): Set is_pie. ld/ PR 27952 * ldelf.c (ldelf_after_open): Error on input PIEs too.
2021-04-12convert elf_link_hash macros to inline functionsAlan Modra1-1/+1
Involves a bit of editing as we now need to be more precise in pointer types. bfd/ * elf-bfd.h (is_elf_hash_table): Convert macro to inline function. (elf_link_hash_lookup, elf_link_hash_traverse): Likewise. (elf_hash_table, elf_hash_table_id): Likewise. * elf32-arm.c (elf32_arm_setup_section_lists): Delete redundant is_elf_hash_table check. * elf32-csky.c (elf32_csky_setup_section_lists): Likewise. * elf32-hppa.c (clobber_millicode_symbols): Correct param types. * elf64-alpha.c (elf64_alpha_output_extsym): Likewise. * elfnn-ia64.c (elfNN_ia64_global_dyn_info_free: Likewise. (elfNN_ia64_global_dyn_sym_thunk: Likewise. * elf64-ia64-vms.c (elf64_ia64_global_dyn_info_free): Likewise. (elf64_ia64_global_dyn_sym_thunk): Likewise. (elf64_vms_link_add_object_symbols): Pass base type of hash table to is_elf_hash_table. * elflink.c (_bfd_elf_dynamic_symbol_p): Likewise. (_bfd_elf_symbol_refs_local_p, _bfd_elf_add_dynamic_entry): Likewise. (_bfd_elf_strip_zero_sized_dynamic_sections): Likewise. (_bfd_elf_link_check_relocs, elf_link_add_object_symbols): Likewise. (bfd_elf_final_link): Likewise. * elfnn-aarch64.c (elfNN_aarch64_setup_section_lists): Likewise. * elf64-ppc.c (ppc64_elf_set_toc): Likewise. Use bfd_link_hash_lookup. ld/ * emultempl/mipself.em (mips_create_output_section_statements): Pass base type of hash table to is_elf_hash_table. * ldelf.c (ldelf_after_open): Likewise.
2021-03-31Use bool in ldAlan Modra1-55/+55
* sysdep.h (POISON_BFD_BOOLEAN): Define. * configure.ac (elf_list_options, elf_shlib_list_options=false), (elf_plt_unwind_list_options=false): Replace FALSE with false, and TRUE with true. * emulparams/call_nop.sh, * emulparams/cet.sh, * emulparams/dynamic_undefined_weak.sh, * emulparams/elf32b4300.sh, * emulparams/elf32lm32.sh, * emulparams/elf32lr5900.sh, * emulparams/elf32lr5900n32.sh, * emulparams/elf32visium.sh, * emulparams/elf_x86_64.sh, * emulparams/extern_protected_data.sh, * emulparams/plt_unwind.sh, * emulparams/reloc_overflow.sh, * emulparams/static.sh, * emulparams/x86-64-lam.sh, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/alphaelf.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/avrelf.em, * emultempl/beos.em, * emultempl/bfin.em, * emultempl/cr16elf.em, * emultempl/crxelf.em, * emultempl/cskyelf.em, * emultempl/elf.em, * emultempl/genelf.em, * emultempl/hppaelf.em, * emultempl/linux.em, * emultempl/m68hc1xelf.em, * emultempl/metagelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmixelf.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pdp11.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc32elf.em, * emultempl/ppc64elf.em, * emultempl/rxelf.em, * emultempl/rxlinux.em, * emultempl/scoreelf.em, * emultempl/solaris2.em, * emultempl/spuelf.em, * emultempl/ticoff.em, * emultempl/v850elf.em, * emultempl/vms.em, * emultempl/xtensaelf.em, * emultempl/z80.em, * ld.h, * ldbuildid.c, * ldbuildid.h, * ldcref.c, * ldctor.c, * ldctor.h, * ldelf.c, * ldelf.h, * ldelfgen.c, * ldelfgen.h, * ldemul.c, * ldemul.h, * ldexp.c, * ldexp.h, * ldfile.c, * ldfile.h, * ldgram.y, * ldlang.c, * ldlang.h, * ldmain.c, * ldmain.h, * ldmisc.c, * ldmisc.h, * ldwrite.c, * lexsup.c, * mri.c, * pe-dll.c, * pe-dll.h, * pep-dll.h, * plugin.c, * plugin.h, * testplug.c, * testplug2.c, * testplug3.c, * testplug4.c: Replace bfd_boolean with bool, FALSE with false, and TRUE with true. * configure: Regenerate.
2021-03-22Add startswith function and use it instead of CONST_STRNEQ.Martin Liska1-8/+8
bfd/ChangeLog: * bfd-in.h (startswith): Add startswith function. (CONST_STRNEQ): Remove. * bfd-in2.h (startswith): Regenerate with make headers. * archive.c (bfd_slurp_armap): Replace usage of CONST_STRNEQ with startswith. (_bfd_slurp_extended_name_table): Likewise. * archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise. * bfd.c (bfd_get_sign_extend_vma): Likewise. (bfd_convert_section_size): Likewise. (bfd_convert_section_contents): Likewise. * coff-stgo32.c (go32exe_create_stub): Likewise. (go32exe_check_format): Likewise. * coffcode.h (styp_to_sec_flags): Likewise. (GNU_DEBUGALTLINK): Likewise. * coffgen.c (_bfd_coff_section_already_linked): Likewise. (coff_gc_sweep): Likewise. (bfd_coff_gc_sections): Likewise. * cofflink.c (coff_link_add_symbols): Likewise. (process_embedded_commands): Likewise. * compress.c (bfd_is_section_compressed_with_header): Likewise. (bfd_init_section_decompress_status): Likewise. * dwarf2.c (find_debug_info): Likewise. (place_sections): Likewise. * ecoff.c (_bfd_ecoff_slurp_armap): Likewise. * elf-m10300.c (_bfd_mn10300_elf_size_dynamic_sections): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Likewise. (assign_section_numbers): Likewise. (elfcore_grok_win32pstatus): Likewise. * elf32-arm.c (cmse_scan): Likewise. (elf32_arm_gc_mark_extra_sections): Likewise. (elf32_arm_size_dynamic_sections): Likewise. (is_arm_elf_unwind_section_name): Likewise. * elf32-bfin.c (bfin_size_dynamic_sections): Likewise. * elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise. * elf32-cris.c (elf_cris_size_dynamic_sections): Likewise. * elf32-csky.c (csky_elf_size_dynamic_sections): Likewise. * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise. * elf32-iq2000.c (iq2000_elf_check_relocs): Likewise. * elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise. * elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise. * elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise. * elf32-metag.c (elf_metag_size_dynamic_sections): Likewise. * elf32-msp430.c (msp430_elf_relax_delete_bytes): Likewise. * elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise. * elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-sh.c (sh_elf_size_dynamic_sections): Likewise. * elf32-tic6x.c (is_tic6x_elf_unwind_section_name): Likewise. (elf32_tic6x_size_dynamic_sections): Likewise. * elf32-vax.c (elf_vax_size_dynamic_sections): Likewise. * elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise. (xtensa_is_insntable_section): Likewise. (xtensa_is_littable_section): Likewise. (xtensa_is_proptable_section): Likewise. (xtensa_property_section_name): Likewise. (xtensa_callback_required_dependence): Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise. * elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise. * elf64-ia64-vms.c (is_unwind_section_name): Likewise. (get_reloc_section): Likewise. (elf64_ia64_size_dynamic_sections): Likewise. (elf64_ia64_object_p): Likewise. * elf64-mmix.c (mmix_elf_add_symbol_hook): Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections): Likewise. * elflink.c (elf_link_add_object_symbols): Likewise. (_bfd_elf_gc_mark_extra_sections): Likewise. (bfd_elf_parse_eh_frame_entries): Likewise. (_bfd_elf_section_already_linked): Likewise. * elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise. * elfnn-ia64.c (is_unwind_section_name): Likewise. (elfNN_ia64_size_dynamic_sections): Likewise. (elfNN_ia64_object_p): Likewise. * elfxx-mips.c (FN_STUB_P): Likewise. (CALL_STUB_P): Likewise. (CALL_FP_STUB_P): Likewise. (_bfd_mips_elf_section_from_shdr): Likewise. (_bfd_mips_elf_fake_sections): Likewise. (_bfd_mips_elf_size_dynamic_sections): Likewise. (_bfd_mips_final_write_processing): Likewise. (_bfd_mips_elf_final_link): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise. * elfxx-x86.c (elf_i386_is_reloc_section): Likewise. (elf_x86_64_is_reloc_section): Likewise. * hpux-core.c (thread_section_p): Likewise. * libcoff.h (bfd_pei_p): Likewise. * linker.c (REAL): Likewise. (unwrap_hash_lookup): Likewise. (_bfd_generic_link_add_one_symbol): Likewise. * mmo.c (mmo_internal_write_section): Likewise. * osf-core.c (osf_core_core_file_p): Likewise. * pef.c (bfd_pef_print_symbol): Likewise. * pei-x86_64.c (pex64_print_all_pdata_sections): Likewise. * som.c (som_slurp_symbol_table): Likewise. (som_slurp_armap): Likewise. * wasm-module.c (wasm_compute_custom_section_file_position): Likewise. binutils/ChangeLog: * dlltool.c (scan_drectve_symbols): Replace usage of CONST_STRNEQ with startswith. * emul_aix.c (ar_emul_aix_parse_arg): Likewise. * objcopy.c (is_mergeable_note_section): Likewise. * objdump.c (dump_dwarf_section): Likewise. * prdbg.c (pr_method_type): Likewise. (pr_class_baseclass): Likewise. (tg_class_baseclass): Likewise. * readelf.c (process_lto_symbol_tables): Likewise. * stabs.c (ULLHIGH): Likewise. (parse_stab_argtypes): Likewise. (stab_demangle_function_name): Likewise. gas/ChangeLog: * config/tc-i386.c (md_parse_option): Replace usage of CONST_STRNEQ with startswith. (x86_64_section_word): Likewise. * config/tc-sparc.c (md_parse_option): Likewise. gdb/ChangeLog: * arm-tdep.c (show_disassembly_style_sfunc): Replace usage of CONST_STRNEQ with startswith. (_initialize_arm_tdep): Likewise. ld/ChangeLog: * emultempl/aix.em: Replace usage of CONST_STRNEQ with startswith. * emultempl/beos.em: Likewise. * emultempl/elf.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/xtensaelf.em: Likewise. * ldctor.c (ctor_prio): Likewise. * ldelf.c (ldelf_try_needed): Likewise. (ldelf_parse_ld_so_conf): Likewise. (ldelf_after_open): Likewise. (output_rel_find): Likewise. (ldelf_place_orphan): Likewise. * ldfile.c (ldfile_add_library_path): Likewise. * ldlang.c (lang_add_input_file): Likewise. * ldmain.c (get_sysroot): Likewise. (get_emulation): Likewise. (add_archive_element): Likewise. * ldwrite.c (unsplittable_name): Likewise. (clone_section): Likewise. * lexsup.c (parse_args): Likewise. * pe-dll.c (is_import): Likewise. (pe_implied_import_dll): Likewise. opcodes/ChangeLog: * aarch64-dis.c (parse_aarch64_dis_option): Replace usage of CONST_STRNEQ with startswith. * arc-dis.c (parse_option): Likewise. * arm-dis.c (parse_arm_disassembler_options): Likewise. * cris-dis.c (print_with_operands): Likewise. * h8300-dis.c (bfd_h8_disassemble): Likewise. * i386-dis.c (print_insn): Likewise. * ia64-gen.c (fetch_insn_class): Likewise. (parse_resource_users): Likewise. (in_iclass): Likewise. (lookup_specifier): Likewise. (insert_opcode_dependencies): Likewise. * mips-dis.c (parse_mips_ase_option): Likewise. (parse_mips_dis_option): Likewise. * s390-dis.c (disassemble_init_s390): Likewise. * wasm32-dis.c (parse_wasm32_disassembler_options): Likewise.
2021-03-05elf/x86-64: Subtract __ImageBase for R_AMD64_IMAGEBASEH.J. Lu1-0/+8
When linking Windows x86-64 relocatable object files to generate x86-64 ELF executable, we need to subtract __ImageBase, aka __executable_start, for R_AMD64_IMAGEBASE relocation: 1. Add link_info to struct output_elf_obj_tdata to store linker info and _bfd_get_link_info() to retrieve it. 2. Add ldelf_set_output_arch to set up link_info. 3. Add pex64_link_add_symbols to create an indirect reference to __executable_start for __ImageBase to support R_AMD64_IMAGEBASE relocation when adding symbols from Windows x86-64 relocatable object files to generate x86-64 ELF executable. 4. Also subtract __ImageBase for R_AMD64_IMAGEBASE when generating x86-64 ELF executable. bfd/ PR ld/27425 PR ld/27432 * bfd.c (_bfd_get_link_info): New function. * elf-bfd.h (output_elf_obj_tdata): Add link_info. (elf_link_info): New. * libbfd-in.h (_bfd_get_link_info): New prototype. * coff-x86_64.c (coff_amd64_reloc): Also subtract __ImageBase for R_AMD64_IMAGEBASE when generating x86-64 ELF executable. * pe-x86_64.c: Include "coff/internal.h" and "libcoff.h". (pex64_link_add_symbols): New function. (coff_bfd_link_add_symbols): New macro. * libbfd.h: Regenerated. ld/ PR ld/27425 PR ld/27432 * ldelf.c (ldelf_set_output_arch): New function. * ldelf.h (ldelf_set_output_arch): New prototype. * emultempl/elf.em (LDEMUL_SET_OUTPUT_ARCH): Default to ldelf_set_output_arch. * ld-x86-64/pe-x86-64-1.od: Expect __executable_start. * testsuite/ld-x86-64/pe-x86-64-2.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-3.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-4.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.rd: Likewise. * testsuite/ld-x86-64/pe-x86-64-6.obj.bz2: New file. * testsuite/ld-x86-64/pe-x86-64-6.od: Likewise. * testsuite/ld-x86-64/pe-x86-64.exp: Run ld/27425 test.
2021-01-28PR27259, SHF_LINK_ORDER self-linkAlan Modra1-7/+14
This stops ld from endless looping on SHF_LINK_ORDER sh_link loops. bfd/ PR 27259 * elflink.c (_bfd_elf_gc_mark_extra_sections): Use linker_mark to prevent endless looping of linked-to sections. ld/ PR 27259 * ldelf.c (ldelf_before_place_orphans): Use linker_mark to prevent endless looping of linked-to sections.
2021-01-13SHF_LINK_ORDER fixup_link_order in ldAlan Modra1-4/+4
This moves the SHF_LINK_ORDER sorting from bfd_elf_final_link to the linker which means generic ELF targets now support SHF_LINK_ORDER and we cope with odd cases that require resizing of output sections. The patch also fixes two bugs in the current implementation, introduced by commit cd6d537c48fa. The pattern test used by that commit meant that sections matching something like "*(.IA_64.unwind* .gnu.linkonce.ia64unw.*)" would not properly sort a mix of sections matching the two wildcards. That commit also assumed a stable qsort. bfd/ PR 27160 * section.c (struct bfd_section): Remove pattern field. (BFD_FAKE_SECTION): Adjust to suit. * bfd-in2.h: Regenerate. * elflink.c (compare_link_order, elf_fixup_link_order): Delete. (bfd_elf_final_link): Don't call elf_fixup_link_order. ld/ PR 27160 * ldlang.h (lang_output_section_statement_type): Add data field. (lang_input_section_type, lang_section_bst_type): Add pattern field. (statement_list): Declare. (lang_add_section): Adjust prototype. * emultempl/aarch64elf.em: Adjust lang_add_section calls. * emultempl/armelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cskyelf.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/metagelf.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/nios2elf.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/vms.em: Likewise. * ldelf.c: Likewise. * ldelfgen.c: Include ldctor.h. (struct os_sections): New. (add_link_order_input_section, link_order_scan): New functions. (compare_link_order, fixup_link_order): New functions. (ldelf_map_segments): Call link_order_scan and fixup_link_order. * ldlang.c (statement_list): Make global. (output_section_callback_fast): Save pattern in tree node. (lang_add_section): Add pattern parameter, save in lang_input_section. (output_section_callback_tree_to_list): Adjust lang_add_section calls. (lang_insert_orphan, output_section_callback): Likewise. (ldlang_place_orphan): Likewise. (gc_section_callback): Don't set section->pattern * testsuite/ld-elf/pr26256-2a.d: Don't xfail generic. * testsuite/ld-elf/pr26256-3b.d: Likewise. * testsuite/ld-elf/pr26256-2b.d: Likewise. notarget xgate.
2021-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2020-11-13elf: Set rel_from_abs to 1 for __ehdr_startH.J. Lu1-0/+2
bfdlink.h has /* Symbol will be converted from absolute to section-relative. Set for symbols defined by a script from "dot" (also SEGMENT_START or ORIGIN) outside of an output section statement. */ unsigned int rel_from_abs : 1; linker.c has .{* Return TRUE if the symbol described by a linker hash entry H . is going to be absolute. Linker-script defined symbols can be . converted from absolute to section-relative ones late in the . link. Use this macro to correctly determine whether the symbol . will actually end up absolute in output. *} .#define bfd_is_abs_symbol(H) \ . (((H)->type == bfd_link_hash_defined \ . || (H)->type == bfd_link_hash_defweak) \ . && bfd_is_abs_section ((H)->u.def.section) \ . && !(H)->rel_from_abs) . Set rel_from_abs to 1 for __ehdr_start which will be converted from absolute to section-relative in assign_file_positions_for_load_sections. PR ld/26869 * ldelf.c (ldelf_before_allocation): Set rel_from_abs to 1 for __ehdr_start. * testsuite/ld-i386/i386.exp: Run pr26869. * testsuite/ld-i386/pr26869.d: New file. * testsuite/ld-i386/pr26869.s: Likewise.
2020-09-15elf: Check bfd_target_elf_flavour on input firstH.J. Lu1-1/+2
Check bfd_target_elf_flavour on input first in ldelf_after_open before checking elf_tdata. * ldelf.c (ldelf_after_open): Check bfd_target_elf_flavour first.
2020-07-29Don't assert at ldwrite.c:212Alan Modra1-0/+1
When excluding SHF_LINK_ORDER sections that happen to have SEC_KEEP set, we need to set SEC_EXCLUDE here to avoid a problem later. * ldelf.c (ldelf_before_place_orphans): Set SEC_EXCLUDE for discarded sections.
2020-07-23PR ld/26288: Allow the use of `--just-symbols' with ET_EXEC inputMaciej W. Rozycki1-1/+2
Fix a regression from commit a87e1817a435 ("Have the linker fail if any attempt to link in an executable is made.") and do not reject ET_EXEC input supplied with the `--just-symbols' option. Such use is legitimate as the file requested is not actually linked and only the symbols are extracted. Furthermore it is often the most useful application, as already observed in our documentation for the option, where it allows "to refer symbolically to absolute locations of memory defined in other programs." Provide a set of tests for the use of ET_EXEC with `--just-symbols'. These are excluded however for SH/PE targets because they complain if a section's VMA is 0: ld: zero vma section reloc detected: `.text' #0 f=32795 ld: zero vma section reloc detected: `.data' #1 f=291 and for x86_64/PE targets because they seem to hardwire the VMA: 100000000 12000000 01000000 00000000 00000000 ................ ld/ PR ld/26288 * ldelf.c (ldelf_after_open): Do not reject ET_EXEC input supplied with `--just-symbols'. * testsuite/ld-misc/just-symbols.exp: New test script. * testsuite/ld-misc/just-symbols-1.dd: New test dump. * testsuite/ld-misc/just-symbols.ld: New test linker script. * testsuite/ld-misc/just-symbols-0.s: New test source. * testsuite/ld-misc/just-symbols-1.s: New test source.
2020-07-23PR ld/26288: Revert obsolete part of PR ld/26047 fixMaciej W. Rozycki1-7/+0
Revert commit a3fc941881e4 ("Stop the linker from accepting executable ELF files as inputs to other links."), which has been made obsolete by commit a87e1817a435 ("Have the linker fail if any attempt to link in an executable is made."). An earlier check triggers added with the latter commit making the piece of code removed dead. ld/ PR ld/26288 Revert: PR 26047 * ldelf.c (ldelf_after_open): Fail if attempting to link one executable into another.
2020-06-23PR 22843: ld, gold: Add --dependency-file option.Roland McGrath1-1/+3
gold/ * options.h (class General_options): Add --dependency-file option. * fileread.cc (File_read::files_read): New static variable. (File_read::open): Add the file to the files_read list. (File_read::record_file_read): New static member function. (File_read::write_dependency_file): New static member function. * fileread.h (class File_read): Declare them. * layout.cc (Layout::read_layout_from_file): Call record_file_read. (Close_task_runner::run): Call write_dependency_file if --dependency-file was passed. ld/ * NEWS: Note --dependency-file. * ld.texi (Options): Document --dependency-file. * ldlex.h (enum option_values): Add OPTION_DEPENDENCY_FILE. * ld.h (ld_config_type): New member dependency_file. * lexsup.c (ld_options, parse_args): Parse --dependency-file. * ldmain.c (struct dependency_file): New type. (dependency_files, dependency_files_tail): New static variables. (track_dependency_files): New function. (write_dependency_file): New function. (main): Call it when --dependency-file was passed. * ldfile.c (ldfile_try_open_bfd): Call track_dependency_files. (ldfile_open_command_file_1): Likewise. * ldelf.c (ldelf_try_needed): Likewise. * pe-dll.c (pe_implied_import_dll): Likewise.
2020-05-28Have the linker fail if any attempt to link in an executable is made.Nick Clifton1-1/+12
PR 26047 * ldelf.c (ldelf_after_open): Fail if attempting to link one executable into another. Ensure that the test is made for all forms of linking.
2020-05-28Stop the linker from accepting executable ELF files as inputs to other links.Nick Clifton1-0/+7
PR 26047 * ldelf.c (ldelf_after_open): Fail if attempting to link one executable into another.
2020-05-21Replace "if (x) free (x)" with "free (x)", ldAlan Modra1-2/+1
* deffilep.y: Replace "if (x) free (x)" with "free (x)" thoughout. * emultempl/elf.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/xtensaelf.em: Likewise. * ldelf.c: Likewise. * ldfile.c: Likewise. * ldmain.c: Likewise. * ldmisc.c: Likewise. * lexsup.c: Likewise. * pe-dll.c: Likewise.
2020-03-11Don't merge sections with differing MASKPROC or MASKOS flagsAlan Modra1-4/+4
Not just SHF_EXCLUDE but any of these flags ought to prevent merging of sections for ld -r. * ldelf.c (elf_orphan_compatible): Return false when two sections have differing SHF_MASKPROC or SHF_MASKOS flags.
2020-02-26PR25593, --as-needed breaks DT_NEEDED order with linker pluginAlan Modra1-0/+19
This patch delays setting up DT_NEEDED dynamic tags until all object files and libraries have been opened and their symbols processed, rather than adding the tags while processing symbols. Tags are ordered according to the position of the associated library on the command line and linker scripts. It is still possible with --as-needed libs that are mentioned more than once for tags to be ordered according to which mention was needed. For example with "--as-needed a.so b.so c.so b.so" when b.so is not needed by a.so or any other prior object file but is needed by c.so, the order of tags will be "A C B". bfd/ PR 25593 * elf-bfd.h (struct elf_link_hash_table): Rename "loaded" to "dyn_loaded". (bfd_elf_add_dt_needed_tag): Declare. * elf-strtab.c (_bfd_elf_strtab_restore): Handle NULL buf. * elflink.c (bfd_elf_add_dt_needed_tag): Make global and rename from elf_add_dt_needed_tag. Remove soname and doit param. (elf_link_add_object_symbols): Don't use elf_add_dt_needed_tag to see whether as-needed lib is already loaded, use dyn_loaded list instead. When saving and restoring around as-needed lib handle possibility that dynstr has not been initialised. Don't add DT_NEEDED tags here. Limit dyn_loaded list to dynamic libs. Mark libs loaded via DT_NEEDED entries of other libs with DYN_NO_NEEDED if they should not be mentioned in DT_NEEDED of the output. (elf_link_check_versioned_symbol): Remove now unneccesary DYNAMIC check when traversing dyn_loaded list. ld/ PR 25593 * ldelf.c (ldelf_try_needed): Add DT_NEEDED lib to input_bfds. (ldelf_after_open): Save state of input_bfds list before loading DT_NEEDED libs. Traverse input_bfds list adding DT_NEEDED tags. Restore input_bfds list. * testsuite/ld-cris/gotplt1.d: Adjust for changed .dynstr order.
2020-02-06ELF: Discard a section if any of its linked-to sections has been discardedH.J. Lu1-0/+29
Add ldelf_before_place_orphans to call before lang_place_orphans to discard a section if any of its linked-to sections has been discarded. PR ld/25022 * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add before_place_orphans_default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Use ldelf_before_place_orphans. * ldelf.c (ldelf_before_place_orphans): New. * ldelf.h (ldelf_before_place_orphans): Likewise. * ldemul.c (ldemul_before_place_orphans): Likewise. (before_place_orphans_default): Likewise. * ldemul.h (ldemul_before_place_orphans): Likewise. (before_place_orphans_default): Likewise. (ld_emulation_xfer_struct): Add before_place_orphans. * ldlang.c (lang_process): Call ldemul_before_place_orphans before lang_place_orphans. * testsuite/ld-elf/pr25022.d: New file. * testsuite/ld-elf/pr25022.s: Likewise. * testsuite/ld-elf/pr25022.t: Likewise.
2020-01-29PR25477, ld 2.34 tries to load ${prefix}/etc/ld.so.confAlan Modra1-4/+4
PR 25477 * ldelf.c (ldelf_check_ld_so_conf): Add prefix parameter and correct concat. (ldelf_after_open): Add prefix parameter. * ldelf.h (ldelf_after_open): Update prototype. * emultempl/elf.em (gld${EMULATION_NAME}_after_open): Pass $prefix to ldelf_after_open. * Makefile.am: Correct z80 dependencies. * Makefile.in: Regenerate.
2020-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2019-12-26Avoid ubsan bug complaining about &p->fieldAlan Modra1-3/+3
I reckon it's quite OK to write &p->field in C when p might be NULL, and lots of old C programmers probably agree with me. However, ubsan disagrees and so do some people I respect. I suspect C++ influence is to blame for the ubsan behaviour. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92634. So far no one has educated me as to why I'm wrong to claim that there isn't anything in the C standard to say that p->field is always (*p).field. Note 79 doesn't quite do that because it doesn't cover null pointers. If there was such an equivalence then you could claim &p->field has a null pointer reference when p is NULL, even though no C compiler would ever dereference p. Anyway, to silence ubsan I'm going to apply the following though I prefer to avoid casts when possible. And I'm using (void *) deliberately because this is C, not C++! * ldlang.c (lang_output_section_find_by_flags): Don't use &p->field when p might be NULL. * ldelf.c (output_rel_find, ldelf_place_orphan): Likewise. (insert_os_after, lang_insert_orphan, lookup_name): Likewise. (strip_excluded_output_sections, lang_clear_os_map): Likewise. (lang_check, lang_for_each_input_file): Likewise. (lang_reset_memory_regions, find_replacements_insert_point): Likewise. (find_rescan_insertion, lang_propagate_lma_regions): Likewise. (lang_record_phdrs): Likewise. * emultempl/alphaelf.em (alpha_after_open): Likewise. * emultempl/mmo.em (mmo_place_orphan): Likewise. * emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise. * emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise. * emultempl/ppc32elf.em (ppc_after_check_relocs): Likewise. * emultempl/spuelf.em (spu_before_allocation): Likewise. (embedded_spu_file): Likewise.
2019-10-03bfd, ld: add CTF section linkingNick Alcock1-0/+1
This is quite complicated because the CTF section's contents depend on the final contents of the symtab and strtab, because it has two sections whose contents are shuffled to be in 1:1 correspondence with the symtab, and an internal strtab that gets deduplicated against the ELF strtab (with offsets adjusted to point into the ELF strtab instead). It is also compressed if large enough, so its size depends on its contents! So we cannot construct it as early as most sections: we cannot even *begin* construction until after the symtab and strtab are finalized. Thankfully there is already one section treated similarly: compressed debugging sections: the only differences are that compressed debugging sections have extra handling to deal with their changing name if compressed (CTF sections are always called ".ctf" for now, though we have reserved ".ctf.*" against future use), and that compressed debugging sections have previously-uncompressed content which has to be stashed away for later compression, while CTF sections have no content at all until we generate it (very late). BFD also cannot do the link itself: libctf knows how to do it, and BFD cannot call libctf directly because libctf already depends on bfd for file I/O. So we have to use a pair of callbacks, one, examine_strtab, which allows a caller to examine the symtab and strtab after finalization (called from elf_link_swap_symbols_out(), right before the symtabs are written, and after the strtab has been finalized), and one which actually does the emission (called emit_ctf simply because it is grouped with a bunch of section-specific late-emission function calls at the bottom of bfd_elf_final_link, and a section-specific name seems best for that). emit_ctf is actually called *twice*: once from lang_process if the emulation suggests that this bfd target does not examine the symtab or strtab, and once via a bfd callback if it does. (This means that non-ELF targets still get CTF emitted, even though the late CTF emission stage is never called for them). v2: merged with non-ELF support patch: slight commit message adjustments. v3: do not spend time merging CTF, or crash, if the CTF section is explicitly discarded. Do not try to merge or compress CTF unless linking. v4: add CTF_COMPRESSION_THRESHOLD. Annul the freed input ctf_file_t's after writeout: set SEC_IN_MEMORY on the output contents so a future bfd enhancement knows it could free it. Add SEC_LINKER_CREATED | SEC_KEEP to avoid having to add .ctf to the linker script. Drop now-unnecessary ldlang.h-level elf-bfd.h include and hackery around it. Adapt to elf32.em->elf.em and elf-generic.em->ldelf*.c changes. v5: fix tabdamage. Drop #inclusions in .h files: include in .c files, .em files, and use struct forwards instead. Use bfd_section_is_ctf inline function rather than SECTION_IS_CTF macro. Move a few comments. * Makefile.def (dependencies): all-ld depends on all-libctf. * Makefile.in: Regenerated. include/ * bfdlink.h (elf_strtab_hash): New forward. (elf_sym_strtab): Likewise. (struct bfd_link_callbacks <examine_strtab>): New. (struct bfd_link_callbacks <emit_ctf>): Likewise. bfd/ * elf-bfd.h (bfd_section_is_ctf): New inline function. * elf.c (special_sections_c): Add ".ctf". (assign_file_positions_for_non_load_sections): Note that compressed debugging sections etc are not assigned here. Treat CTF sections like SEC_ELF_COMPRESS sections when is_linker_output: sh_offset -1. (assign_file_positions_except_relocs): Likewise. (find_section_in_list): Note that debugging and CTF sections, as well as reloc sections, are assigned later. (_bfd_elf_assign_file_positions_for_non_load): CTF sections get their size and contents updated. (_bfd_elf_set_section_contents): Skip CTF sections: unlike compressed sections, they have no uncompressed content to copy at this stage. * elflink.c (elf_link_swap_symbols_out): Call the examine_strtab callback right before the strtab is written out. (bfd_elf_final_link): Don't cache the section contents of CTF sections: they are not populated yet. Call the emit_ctf callback right at the end, after all the symbols and strings are flushed out. ld/ * ldlang.h: (struct lang_input_statement_struct): Add the_ctf. (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (ldlang_ctf_apply_strsym): Declare. (ldlang_write_ctf_late): Likewise. * ldemul.h (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. (ld_emulation_xfer_type) <emit_ctf_early>: Likewise. (ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise. * ldemul.c (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. * ldlang.c: Include ctf-api.h. (CTF_COMPRESSION_THRESHOLD): New. (ctf_output): New. Initialized in... (ldlang_open_ctf): ... this new function. Open all the CTF sections in the input files: mark them non-loaded and empty so as not to copy their contents to the output, but linker-created so the section gets created in the target. (ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and ctf_link. (ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap ldemul_examine_strtab_for_ctf. (lang_write_ctf): New, write out the CTF section. (ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook. (lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and lang_write_ctf. * ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym, ldlang_write_ctf_late. * emultempl/aix.em: Add ctf-api.h. * emultempl/armcoff.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/elf.em: Likewise. * emultempl/generic.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * ldcref.c: Likewise. * ldctor.c: Likewise. * ldelf.c: Likewise. * ldelfgen.c: Likewise. * ldemul.c: Likewise. * ldexp.c: Likewise. * ldfile.c: Likewise. * ldgram.c: Likewise. * ldlex.l: Likewise. * ldmain.c: Likewise. * ldmisc.c: Likewise. * ldver.c: Likewise. * ldwrite.c: Likewise. * lexsup.c: Likewise. * mri.c: Likewise. * pe-dll.c: Likewise. * plugin.c: Likewise. * ldelfgen.c (ldelf_emit_ctf_early): New. (ldelf_examine_strtab_for_ctf): tell libctf about the symtab and strtab. (struct ctf_strsym_iter_cb_arg): New, state to do so. (ldelf_ctf_strtab_iter_cb): New: tell libctf about each string in the strtab in turn. (ldelf_ctf_symbols_iter_cb): New, tell libctf about each symbol in the symtab in turn. * ldelfgen.h (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (struct ctf_file): Likewise. (ldelf_emit_ctf_early): Declare. (ldelf_examine_strtab_for_ctf): Likewise. * emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it. (LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise. * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add emit_ctf_early and examine_strtab_for_ctf, NULL by default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_vanilla_emulation): Likewise. * Makefile.am: Pull in libctf (and zlib, a transitive requirement for compressed CTF section emission). Pass it on to DejaGNU. * configure.ac: Add AM_ZLIB. * aclocal.m4: Added zlib.m4. * Makefile.in: Regenerated. * testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.
2019-09-23elf bfd.h tidyAlan Modra1-0/+1
bfd/ * bfd-in.h (enum notice_asneeded_action): Move to bfdlink.h. Move most other elf declarations.. * elf-bfd.h: ..to here. * bfd-in2.h: Regenerate. include/ * bfdlink.h (enum notice_asneeded_action): Define. ld/ * deffilep.y: Include bfdlink.h. * ldelf.c: Likewise. * ldelfgen.c: Likewise. * ldver.c: Likewise. * mri.c: Likewise. * emultempl/irix.em: Don't include ld.h, ldmain.h, libiberty.h. Comment.
2019-09-20bfd macro conversion to inline functionsAlan Modra1-5/+3
This converts some of the macros that access struct bfd fields to inline functions. bfd/ * archive.c (bfd_generic_archive_p): Use bfd_set_thin_archive. * bfd-in.h (bfd_get_filename, bfd_get_cacheable, bfd_get_format), (bfd_get_target, bfd_get_flavour, bfd_family_coff, bfd_big_endian), (bfd_little_endian, bfd_header_big_endian, bfd_header_little_endian), (bfd_get_file_flags, bfd_applicable_file_flags), (bfd_applicable_section_flags, bfd_has_map, bfd_is_thin_archive), (bfd_valid_reloc_types, bfd_usrdata, bfd_get_start_address), (bfd_get_symcount, bfd_get_outsymbols, bfd_count_sections), (bfd_get_dynamic_symcount, bfd_get_symbol_leading_char): Delete. * bfd/bfd.c (bfd_get_filename, bfd_get_cacheable, bfd_get_format), (bfd_get_file_flags, bfd_get_start_address, bfd_get_symcount), (bfd_get_dynamic_symcount, bfd_get_outsymbols, bfd_count_sections), (bfd_has_map, bfd_is_thin_archive, bfd_set_thin_archive), (bfd_usrdata, bfd_set_usrdata): New inline functions. * targets.c (bfd_get_target, bfd_get_flavour), (bfd_applicable_file_flags, bfd_family_coff, bfd_big_endian), (bfd_little_endian, bfd_header_big_endian), (bfd_header_little_endian, bfd_applicable_section_flags), (bfd_get_symbol_leading_char): New inline functions. * bfd-in2.h: Regenerate. binutils/ * ar.c (write_archive): Use bfd_set_thin_archive. gdb/ * gdb_bfd.c (gdb_bfd_ref, gdb_bfd_unref): Use bfd_set_usrdata. * dwarf2read.c (dwarf2_read_gdb_index, dwarf2_read_debug_names), (read_indirect_string_from_dwz): Use bfd accessor. * dwarf2read.h (struct dwz_file <filename>): Likewise. * machoread.c (macho_symfile_read_all_oso): Likewise. * solib.c (solib_bfd_open): Likewise. ld/ * ldelf.c (ldelf_after_open, ldelf_place_orphan * ldlang.c (walk_wild_file, lang_process): Use bfd_usrdata. (load_symbols, ldlang_add_file): Use bfd_set_usrdata. * ldmain.c (add_archive_element): Use bfd_usrdata. * ldlang.h (bfd_input_just_syms): New inline function. * emultempl/aarch64elf.em (build_section_lists): Use it. * emultempl/mmo.em (mmo_place_orphan): Likewise. * emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise. * emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise. * emultempl/ppc64elf.em (build_section_lists): Likewise. sim/ * ppc/emul_generic.c (emul_add_tree_options): Delete old bfd code.
2019-09-19bfd_section_* macrosAlan Modra1-3/+3
This large patch removes the unnecessary bfd parameter from various bfd section macros and functions. The bfd is hardly ever used and if needed for the bfd_set_section_* or bfd_rename_section functions can be found via section->owner except for the com, und, abs, and ind std_section special sections. Those sections shouldn't be modified anyway. The patch also removes various bfd_get_section_<field> macros, replacing their use with bfd_section_<field>, and adds bfd_set_section_lma. I've also fixed a minor bug in gas where compressed section renaming was done directly rather than calling bfd_rename_section. This would have broken bfd_get_section_by_name and similar functions, but that hardly mattered at such a late stage in gas processing. bfd/ * bfd-in.h (bfd_get_section_name, bfd_get_section_vma), (bfd_get_section_lma, bfd_get_section_alignment), (bfd_get_section_size, bfd_get_section_flags), (bfd_get_section_userdata): Delete. (bfd_section_name, bfd_section_size, bfd_section_vma), (bfd_section_lma, bfd_section_alignment): Lose bfd parameter. (bfd_section_flags, bfd_section_userdata): New. (bfd_is_com_section): Rename parameter. * section.c (bfd_set_section_userdata, bfd_set_section_vma), (bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section), (bfd_set_section_size): Delete bfd parameter, rename section parameter. (bfd_set_section_lma): New. * bfd-in2.h: Regenerate. * mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param, update callers. * aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h, * elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c, * elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c, * elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c, * elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c, * mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c, * peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c, * xcofflink.c: Update throughout for bfd section macro and function changes. binutils/ * addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c, * objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c, * od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c, * resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update throughout for bfd section macro and function changes. gas/ * as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c, * read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c, * config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c, * config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c, * config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c, * config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c, * config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c, * config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c, * config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c, * config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c, * config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c, * config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c, * config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c, * config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c, * config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c, * config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c, * config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c, * config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c, * config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c, * config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for bfd section macro and function changes. * write.c (compress_debug): Use bfd_rename_section. gdb/ * aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c, * coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c, * dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c, * exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h, * hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c, * i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c, * maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c, * mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c, * objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c, * ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c, * rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c, * s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c, * solib-spu.c, * solib-svr4.c, * solib-target.c, * spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c, * symmisc.c, * symtab.c, * target.c, * windows-nat.c, * xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c, * mi/mi-interp.c: Update throughout for bfd section macro and function changes. * gcore (gcore_create_callback): Use bfd_set_section_lma. * spu-tdep.c (spu_overlay_new_objfile): Likewise. gprof/ * corefile.c, * symtab.c: Update throughout for bfd section macro and function changes. ld/ * ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/cr16elf.em, * emultempl/cskyelf.em, * emultempl/m68hc1xelf.em, * emultempl/m68kelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update throughout for bfd section macro and function changes. libctf/ * ctf-open-bfd.c: Update throughout for bfd section macro changes. opcodes/ * arc-ext.c: Update throughout for bfd section macro changes. sim/ * common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c, * erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c, * m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c, * rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c, * rx/trace.c: Update throughout for bfd section macro changes.
2019-09-16PR25002, ld/ldelf.c missing safe-ctype.h includeAlan Modra1-0/+1
PR 25002 * ldelf.c: Include safe-ctype.h.
2019-09-11Rename elf32.em to elf.emAlan Modra1-1/+1
* emultempl/elf32.em: Remove "misnamed" comment. Rename to.. * emultempl/elf.em: ..this. * configure.ac (elf_list_options): Adjust TEMPLATE_NAME grep. * emulparams/aarch64cloudabi.sh (TEMPLATE_NAME): Set to elf. * emulparams/aarch64elf.sh: Likewise. * emulparams/aarch64elf32.sh: Likewise. * emulparams/aarch64fbsd.sh: Likewise. * emulparams/aarch64linux.sh: Likewise. * emulparams/aarch64linux32.sh: Likewise. * emulparams/arcelf.sh: Likewise. * emulparams/arcelf_prof.sh: Likewise. * emulparams/arclinux.sh: Likewise. * emulparams/arclinux_prof.sh: Likewise. * emulparams/arcv2elf.sh: Likewise. * emulparams/arcv2elfx.sh: Likewise. * emulparams/armelf.sh: Likewise. * emulparams/armelf_fuchsia.sh: Likewise. * emulparams/armelf_linux.sh: Likewise. * emulparams/armelf_phoenix.sh: Likewise. * emulparams/armnto.sh: Likewise. * emulparams/avr1.sh: Likewise. * emulparams/avr2.sh: Likewise. * emulparams/avr25.sh: Likewise. * emulparams/avr3.sh: Likewise. * emulparams/avr31.sh: Likewise. * emulparams/avr35.sh: Likewise. * emulparams/avr4.sh: Likewise. * emulparams/avr5.sh: Likewise. * emulparams/avr51.sh: Likewise. * emulparams/avr6.sh: Likewise. * emulparams/avrtiny.sh: Likewise. * emulparams/avrxmega1.sh: Likewise. * emulparams/avrxmega2.sh: Likewise. * emulparams/avrxmega3.sh: Likewise. * emulparams/avrxmega4.sh: Likewise. * emulparams/avrxmega5.sh: Likewise. * emulparams/avrxmega6.sh: Likewise. * emulparams/avrxmega7.sh: Likewise. * emulparams/criself.sh: Likewise. * emulparams/crislinux.sh: Likewise. * emulparams/cskyelf.sh: Likewise. * emulparams/d10velf.sh: Likewise. * emulparams/elf32_sparc.sh: Likewise. * emulparams/elf32_spu.sh: Likewise. * emulparams/elf32_tic6x_le.sh: Likewise. * emulparams/elf32_x86_64.sh: Likewise. * emulparams/elf32am33lin.sh: Likewise. * emulparams/elf32bfin.sh: Likewise. * emulparams/elf32bfinfd.sh: Likewise. * emulparams/elf32bmip.sh: Likewise. * emulparams/elf32bmipn32-defs.sh: Likewise. * emulparams/elf32cr16.sh: Likewise. * emulparams/elf32cr16c.sh: Likewise. * emulparams/elf32crx.sh: Likewise. * emulparams/elf32epiphany.sh: Likewise. * emulparams/elf32epiphany_4x4.sh: Likewise. * emulparams/elf32frvfd.sh: Likewise. * emulparams/elf32ip2k.sh: Likewise. * emulparams/elf32lm32.sh: Likewise. * emulparams/elf32lm32fd.sh: Likewise. * emulparams/elf32lriscv-defs.sh: Likewise. * emulparams/elf32m32c.sh: Likewise. * emulparams/elf32mb_linux.sh: Likewise. * emulparams/elf32mbel_linux.sh: Likewise. * emulparams/elf32mcore.sh: Likewise. * emulparams/elf32mep.sh: Likewise. * emulparams/elf32metag.sh: Likewise. * emulparams/elf32microblaze.sh: Likewise. * emulparams/elf32mipswindiss.sh: Likewise. * emulparams/elf32or1k.sh: Likewise. * emulparams/elf32ppccommon.sh: Likewise. * emulparams/elf32rl78.sh: Likewise. * emulparams/elf32rx.sh: Likewise. * emulparams/elf32tilegx.sh: Likewise. * emulparams/elf32tilepro.sh: Likewise. * emulparams/elf32vax.sh: Likewise. * emulparams/elf32visium.sh: Likewise. * emulparams/elf32xc16x.sh: Likewise. * emulparams/elf32xc16xl.sh: Likewise. * emulparams/elf32xc16xs.sh: Likewise. * emulparams/elf32xstormy16.sh: Likewise. * emulparams/elf32xtensa.sh: Likewise. * emulparams/elf64_aix.sh: Likewise. * emulparams/elf64_ia64.sh: Likewise. * emulparams/elf64_s390.sh: Likewise. * emulparams/elf64_sparc.sh: Likewise. * emulparams/elf64alpha.sh: Likewise. * emulparams/elf64bpf.sh: Likewise. * emulparams/elf64hppa.sh: Likewise. * emulparams/elf64mmix.sh: Likewise. * emulparams/elf64rdos.sh: Likewise. * emulparams/elf64tilegx.sh: Likewise. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_s390.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/h8300elf.sh: Likewise. * emulparams/h8300elf_linux.sh: Likewise. * emulparams/hppa64linux.sh: Likewise. * emulparams/hppaelf.sh: Likewise. * emulparams/hppalinux.sh: Likewise. * emulparams/i386lynx.sh: Likewise. * emulparams/i386moss.sh: Likewise. * emulparams/i386nto.sh: Likewise. * emulparams/m32relf.sh: Likewise. * emulparams/m32relf_linux.sh: Likewise. * emulparams/m68hc11elf.sh: Likewise. * emulparams/m68hc11elfb.sh: Likewise. * emulparams/m68hc12elf.sh: Likewise. * emulparams/m68hc12elfb.sh: Likewise. * emulparams/m68kelf.sh: Likewise. * emulparams/mn10300.sh: Likewise. * emulparams/nds32elf.sh: Likewise. * emulparams/nds32elf16m.sh: Likewise. * emulparams/nds32elf_linux.sh: Likewise. * emulparams/nios2elf.sh: Likewise. * emulparams/nios2linux.sh: Likewise. * emulparams/pruelf.sh: Likewise. * emulparams/score3_elf.sh: Likewise. * emulparams/shelf.sh: Likewise. * emulparams/shelf_nto.sh: Likewise. * emulparams/shelf_vxworks.sh: Likewise. * emulparams/shlelf_linux.sh: Likewise. * emulparams/shlelf_nto.sh: Likewise. * emulparams/v850.sh: Likewise. * emulparams/v850_rh850.sh: Likewise. * ldelf.c: Update comment. * ldelf.h: Likewise. * emultempl/aarch64elf.em: Likewise. * emultempl/alphaelf.em: Likewise. * emultempl/arclinux.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/bfin.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/crxelf.em: Likewise. * emultempl/cskyelf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf-x86.em: Likewise. * emultempl/epiphanyelf_4x4.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/ia64elf.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/metagelf.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmixelf.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/needrelax.em: Likewise. * emultempl/nios2elf.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/pruelf.em: Likewise. * emultempl/rxelf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/tic6xdsbt.em: Likewise. * emultempl/v850elf.em: Likewise. * emultempl/vms.em: Likewise. * emultempl/vxworks.em: Likewise. * emultempl/xtensaelf.em: Likewise. * scripttempl/arclinux.sc: Likewise. * scripttempl/armbpabi.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * testsuite/ld-arm/arm-dyn.ld: Likewise. * testsuite/ld-arm/arm-lib.ld: Likewise. * testsuite/ld-arm/arm-no-rel-plt.ld: Likewise. * testsuite/ld-arm/fdpic-main.ld: Likewise. * testsuite/ld-arm/fdpic-shared.ld: Likewise. * testsuite/ld-elf/elf.exp: Likewise. * testsuite/ld-elf/orphan-region.d: Likewise. * testsuite/ld-elf/orphan.d: Likewise. * testsuite/ld-elf/pr349.d: Likewise. * testsuite/ld-elf/warn2.d: Likewise. * testsuite/ld-elfvsb/elf-offset.ld: Likewise. * testsuite/ld-mips-elf/mips-dyn.ld: Likewise. * testsuite/ld-mips-elf/mips-lib.ld: Likewise. * testsuite/ld-scripts/dynamic-sections.t: Likewise. * testsuite/ld-shared/elf-offset.ld: Likewise. * configure: Regenerate.
2019-09-11Move elf32.em and elf-generic.em functionsAlan Modra1-0/+2135
Many ELF linker targets support multiple "emulations" and thus have multiple copies of elf32.em being compiled and linked into ld. This patch moves much of elf32.em and elf-generic.em into files which will be compiled just once, resulting in a 20% decrease in ld size for --enable-targets=all. * Makefile.am (ALL_EMUL_EXTRA_OFILES): Add ldelf and ldelfgen. (CFILES, HFILES, EXTRA_ld_new_SOURCES): Likewise. * configure.tgt: Formatting. (targ_extra_ofiles): Init to ldelf.o ldelfgen.o, reset to just ldelfgen.o for generic ELF targets, and empty for non-ELF. * emultempl/aarch64elf.em (gldaarch64_layout_sections_again): Use ldelf_map_segments. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, aarch64_for_each_input_file_wrapper), (aarch64_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/alphaelf.em (alpha_after_parse): Use ldelf_map_segments. * emultempl/armelf.em (gldarm_layout_sections_again): Likewise. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, arm_for_each_input_file_wrapper), (arm_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/cr16elf.em (cr16elf_after_parse): Use ldelf_map_segments. * emultempl/crxelf.em (crxelf_after_parse): Likewise. Delete declaration. * emultempl/cskyelf.em (gldcsky_layout_sections_again): Use ldelf_map_segments. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, csky_for_each_input_file_wrapper), (csky_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/genelf.em: Include ldelfgen.h. (gld${EMULATION_NAME}_before_allocation): Use ldelf_map_segments. * emultempl/hppaelf.em (hppaelf_after_parse): Likewise. (hppaelf_layout_sections_again): Likewise. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, hppa_for_each_input_file_wrapper), (hppa_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/ia64elf.em (ia64elf_after_parse): Use ldelf_map_segments. * emultempl/m68hc1xelf.em (real_func), (m68hc11_for_each_input_file_wrapper), (m68hc11_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/metagelf.em (metagelf_layout_sections_again): Use ldelf_map_segments. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, metag_for_each_input_file_wrapper), (metag_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/mipself.em (real_func), (mips_for_each_input_file_wrapper), (mips_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/mmo.em: Don't include elf-bfd.h, do include ldelfgen.h. (gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments. * emultempl/nds32elf.em (nds32_elf_after_parse): Use ldelf_after_parse. (nds32_elf_after_allocation): Comment fix. * emultempl/nios2elf.em (nios2elf_layout_sections_again): Use ldelf_map_segments. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, nios2_for_each_input_file_wrapper), (nios2_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. * emultempl/ppc32elf.em (gld${EMULATION_NAME}_load_symbols): Delete declaration. (ppc_recognized_file): Call ldelf_load_symbols. * emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise. (gld${EMULATION_NAME}_after_allocation): Likewise. (real_func, ppc_for_each_input_file_wrapper), (ppc_lang_for_each_input_file): Delete. (lang_for_each_input_file): Don't define. (gld${EMULATION_NAME}_load_symbols): Don't declare. (ppc64_recognized_file): Call ldelf_load_symbols. * emultempl/riscvelf.em (gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments. * emultempl/spuelf.em (spu_place_special_section): Use ldelf_place_orphan. * emultempl/tic6xdsbt.em (gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments. * emultempl/vms.em: Include ldelfgen.h. (gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments. * emultempl/elf32.em: Remove unnecessary headers, include ldelf.h and ldelfgen.h. Move much of file content to.. * ldelf.c: ..here. New file. * ldelf.h: New file. * emultempl/elf-generic.em: Move gld${EMULATION_NAME}_map_segments.. * ldelfgen.c: ..to here. * ldelfgen.h: New file. * ldlang.c (lang_for_each_input_file): Adjust to only call func on real files. (lang_for_each_file): Likewise. * po/SRC-POTFILES.in: Regenerate. * Makefile.in: Regenerate.