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2017-11-15Add support to readelf and objdump for following links to separate debug ↵Nick Clifton2-1/+7
information files. Hi Guys, I am applying the rather large patch attached to this email to enhance the readelf and objdump programs so that they now have the ability to follow links to separate debug info files. (As requested by PR 15152). So for example whereas before we had this output: $ readelf -wi main.exe Contents of the .debug_info section: [...] <15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) [...] With the new option enabled we get: $ readelf -wiK main.exe main.exe: Found separate debug info file: dwz.debug Contents of the .debug_info section (loaded from main.exe): [...] <15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) /home/nickc/Downloads/dwzm [...] The link following feature also means that we can get two lots of output if the same section exists in both the main file and the separate debug info file: $ readelf -wiK main.exe main.exe: Found separate debug info file: dwz.debug Contents of the .debug_info section (loaded from main.exe): [...] Contents of the .debug_info section (loaded from dwz.debug): [...] The patch also adds the ability to display the contents of debuglink sections: $ readelf -wk main.exe Contents of the .gnu_debugaltlink section: Separate debug info file: dwz.debug Build-ID (0x14 bytes): c4 a8 89 8d 64 cf 70 8a 35 68 21 f2 ed 24 45 3e 18 7a 7a 93 Naturally there are long versions of these options (=follow-links and =links). The documentation has been updated as well, and since both readelf and objdump use the same set of debug display options, I have moved the text into a separate file. There are also a couple of new binutils tests to exercise the new behaviour. There are a couple of missing features in the current patch however, although I do intend to address them in follow up submissions: Firstly the code does not check the build-id inside separate debug info files when it is searching for a file specified by a .gnu_debugaltlink section. It just assumes that if the file is there, then it contains the information being sought. Secondly I have not checked the DWARF-5 version of these link features, so there will probably be code to add there. Thirdly I have only implemented link following for the DW_FORM_GNU_strp_alt format. Other alternate formats (eg DW_FORM_GNU_ref_alt) have yet to be implemented. Lastly, whilst implementing this feature I found it necessary to move some of the global variables used by readelf (eg section_headers) into a structure that can be passed around. I have moved all of the global variables that were necessary to get the patch working, but I need to complete the operation and move the remaining, file-specific variables (eg dynamic_strings). Cheers Nick binutils PR 15152 * dwarf.h (enum dwarf_section_display_enum): Add gnu_debuglink, gnu_debugaltlink and separate_debug_str. (struct dwarf_section): Add filename field. Add prototypes for load_separate_debug_file, close_debug_file and open_debug_file. * dwarf.c (do_debug_links): New. (do_follow_links): New. (separate_debug_file, separate_debug_filename): New. (fetch_alt_indirect_string): New function. Retrieves a string from the debug string table in the separate debug info file. (read_and_display_attr_value): Use it with DW_FORM_GNU_strp_alt. (load_debug_section_with_follow): New function. Like load_debug_section, but if the first attempt fails, then tries again in the separate debug info file. (introduce): New function. (process_debug_info): Use load_debug_section_with_follow and introduce. (load_debug_info): Likewise. (display_debug_lines_raw): Likewise. (display_debug_lines_decoded): Likewise. (display_debug_macinfo): Likewise. (display_debug_macro): Likewise. (display_debug_abbrev): Likewise. (display_debug_loc): Likewise. (display_debug_str): Likewise. (display_debug_aranges): Likewise. (display_debug_addr); Likewise. (display_debug_frames): Likewise. (display_gdb_index): Likewise. (process_cu_tu_index): Likewise. (load_cu_tu_indexes): Likewise. (display_debug_links): New function. Displays the contents of a .gnu_debuglink or .gnu_debugaltlink section. (calc_gnu_debuglink_ctc32):New function. Calculates a CRC32 value. (check_gnu_debuglink): New function. Checks the CRC of a potential separate debug info file. (parse_gnu_debuglink): New function. Reads a CRC value out of a .gnu_debuglink section. (check_gnu_debugaltlink): New function. (parse_gnu_debugaltlink): New function. Reads the build-id value out of a .gnu_debugaltlink section. (load_separate_debug_info): New function. Finds and loads a separate debug info file. (load_separate_debug_file): New function. Attempts to find and follow a link to a separate debug info file. (free_debug_memory): Free the separate debug info file information. (opts_table): Add "follow-links" and "links". (dwarf_select_sections_by_letters): Add "k" and "K". (debug_displays): Reformat. Add .gnu-debuglink and .gnu_debugaltlink. Add an extra entry for .debug_str in a separate debug info file. * doc/binutils.texi: Move description of debug dump features common to both readelf and objdump into... * objdump.c (usage): Add -Wk and -WK. (load_specific_debug_section): Initialise the filename field in the dwarf_section structure. (close_debug_file): New function. (open_debug_file): New function. (dump_dwarf): Load and dump the separate debug info sections. * readelf.c (struct filedata): New structure. Contains various variables that used to be global: (current_file_size, string_table, string_table_length, elf_header) (section_headers, program_headers, dump_sects, num_dump_sects): Move into filedata structure. (cmdline): New global variable. Contains list of sections to dump by number, as specified on the command line. Add filedata parameter to most functions. (load_debug_section): Load the string table if it has not already been retrieved. (close_file): New function. (close_debug_file): New function. (open_file): New function. (open_debug_file): New function. (process_object): Process sections in any separate debug info files. * doc/debug.options.texi: New file. Add description of =links and =follow-links options. * NEWS: Mention the new feature. * elfcomm.c: Have the byte gte functions take a const pointer. * elfcomm.h: Update prototypes. * testsuite/binutils-all/dw5.W: Update expected output. * testsuite/binutils-all/objdump.WL: Update expected output. * testsuite/binutils-all/objdump.exp: Add test of -WK and -Wk. * testsuite/binutils-all/readelf.exp: Add test of -wK and -wk. * testsuite/binutils-all/readelf.k: New file. * testsuite/binutils-all/objdump.Wk: New file. * testsuite/binutils-all/objdump.WK2: New file. * testsuite/binutils-all/linkdebug.s: New file. * testsuite/binutils-all/debuglink.s: New file. gas * testsuite/gas/avr/large-debug-line-table.d: Update expected output. * testsuite/gas/elf/dwarf2-11.d: Likewise. * testsuite/gas/elf/dwarf2-12.d: Likewise. * testsuite/gas/elf/dwarf2-13.d: Likewise. * testsuite/gas/elf/dwarf2-14.d: Likewise. * testsuite/gas/elf/dwarf2-15.d: Likewise. * testsuite/gas/elf/dwarf2-16.d: Likewise. * testsuite/gas/elf/dwarf2-17.d: Likewise. * testsuite/gas/elf/dwarf2-18.d: Likewise. * testsuite/gas/elf/dwarf2-5.d: Likewise. * testsuite/gas/elf/dwarf2-6.d: Likewise. * testsuite/gas/elf/dwarf2-7.d: Likewise. ld * testsuite/ld-avr/gc-section-debugline.d: Update expected output.
2017-11-15ld einfo positional arg supportAlan Modra2-24/+185
To allow translators to reorder values in translated strings. This should mean that all binutils messages now have support for reordering. Note to translators: Not all % letters take arguments, so for example the following only has two arguments, the two %s strings. "%P%F: output format %s cannot represent section called %s: %E\n" You could reorder this if you liked to: "%P%F: %E: section %2$s cannot be represented in output format %1$s\n" einfo lacks support for flags, field width, precision and length modifier (apart from %ld and %lu) so don't try to use them in translations. Both ld and bfd lack support to use a positional arg twice. These features could be added if needed.. * ldmisc.c (vfinfo): Support up to 9 positional args.
2017-11-14Add modified file I missed in last commit.Jim Wilson1-1/+3
2017-11-14Fix riscv ld testsuite failure for compressed1d.Jim Wilson3-0/+28
ld/ * testsuite/ld-elf/compress1-alt.s: New. * testsuite/ld-elf/compressed1d-alt.d: New. * testsuite/ld-elf/compressed1d.d: Add riscv*-*-* to notarget list.
2017-11-14PR22431, powerpc64 ld segfault when .plt discardedAlan Modra2-0/+5
The fix for the PR is to not use input_section->output_section->owner to get to the output bfd, but use the output bfd directly since it is available nowadays in struct bfd_link_info. I thought it worth warning when non-empty dynamic sections are discarded too, which meant a tweak to one of the ld tests to avoid the warning. bfd/ PR 22431 * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Warn on discarding non-empty dynamic section. (ppc_build_one_stub): Take elf_gp from output bfd, not output section owner. (ppc_size_one_stub, ppc64_elf_next_toc_section): Likewise. ld/ * testsuite/ld-elf/note-3.t: Don't discard .got.
2017-11-14ld-ifunc non-PIC testsAlan Modra2-3/+8
* testsuite/ld-ifunc/ifunc.exp: Ensure non-PIC tests are really not PIE by default gcc options.
2017-11-13ld: Replace exp_dataseg_none with exp_seg_noneH.J. Lu4-3/+10
* emultempl/ppc32elf.em (ppc_before_allocation): Replace exp_dataseg_none with exp_seg_none. * emultempl/ppc64elf.em (prelim_size_sections): Likewise. * emultempl/spuelf.em (spu_before_allocation): Likewise.
2017-11-12ld: Add ldlang_check_relro_region/update lang_find_relro_sections_1H.J. Lu1-23/+32
Extract GNU_RELRO region check into a new funtion and pass a pointer to seg_align_type to lang_find_relro_sections_1 so that they can also be used for text-only LOAD segment. * ldlang.c (lang_size_sections_1): Extract GNU_RELRO region check into ... (ldlang_check_relro_region): New function. (lang_find_relro_sections_1): Add an argument for pointer to seg_align_type and replace expld.dataseg with the pointer. (lang_find_relro_sections): Pass address of expld.dataseg to lang_find_relro_sections_1.
2017-11-12clH.J. Lu1-0/+10
2017-11-12ld: Add lang_size_relro_segmentH.J. Lu2-64/+117
Break lang_size_sections down into separate functions so that they can also be used for text-only LOAD segment. lang_size_relro_segment will call lang_size_relro_segment_1 and lang_size_segment for both GNU_RELRO segment and text-only LOAD segment. * ldlang.c (lang_size_segment): New function. (lang_size_relro_segment_1): Likewise. (lang_size_relro_segment): Likewise. (lang_size_sections): Rewrite to call lang_size_relro_segment.
2017-11-12ld: Add fold_segment_align/fold_segment_relro_end/fold_segment_endH.J. Lu2-89/+114
Extract DATA_SEGMENT_END/DATA_SEGMENT_ALIGN/DATA_SEGMENT_RELRO_END cases for GNU_RELRO segment into separate functions so that they can also be used for text-only LOAD segment. * ldexp.c (fold_unary): Extract the DATA_SEGMENT_END case to ... (fold_segment_end): New function. (fold_binary): Extract the DATA_SEGMENT_ALIGN case to ... (fold_segment_align): New function. (fold_binary): Extract the DATA_SEGMENT_RELRO_END case to ... (fold_segment_relro_end): New function.
2017-11-12ld: Update phase_enum/relro_enum and add seg_align_typeH.J. Lu4-55/+76
Update GNU_RELRO date type so that they can also be used for text-only LOAD segment. * ldexp.h (phase_enum): Rename exp_dataseg_none, exp_dataseg_align_seen, exp_dataseg_relro_seen, exp_dataseg_end_seen, exp_dataseg_relro_adjust, exp_dataseg_adjust and exp_dataseg_done to exp_seg_none, exp_seg_align_seen, exp_seg_relro_seen, exp_seg_end_seen, exp_seg_relro_adjust, exp_seg_adjust and exp_seg_done. (relro_enum): Rename exp_dataseg_relro_none, exp_dataseg_relro_start and exp_dataseg_relro_end to exp_seg_relro_none, exp_seg_relro_start and exp_seg_relro_end. (seg_align_type): New struct type. (ldexp_control): Use seg_align_type. * ldexp.c (fold_unary): Updated. (fold_binary): Likewise. * ldlang.c (strip_excluded_output_sections): Likewise. (lang_size_sections_1): Likewise. (lang_size_sections): Likewise.
2017-11-12ld: Remove PF_X from PT_PHDR segmentH.J. Lu12-10/+34
It was reasonable to mark PT_PHDR segment with PF_X for compatibility with UnixWare and Solaris linkers 20 years ago. But it is inappropriate today when the primary OS of GNU ld is Linux. This patch removes PF_X from PT_PHDR segment as gold does. Tested natively on Linux/x86 as well as crosss-binutils for alpha-linux, ia64-linux, powerpc64-linux, powerpc-linux, s390-linux, s390x-linux, sparc64-linux and sparc-linux. bfd/ PR ld/22423 * elf.c (_bfd_elf_map_sections_to_segments): Remove PF_X from PT_PHDR segment. ld/ PR ld/22423 * testsuite/ld-alpha/tlsbin.rd: Replace "R E " with "R +" for PT_PHDR segment. * testsuite/ld-alpha/tlsbinr.rd: Likewise. * testsuite/ld-ia64/tlsbin.rd: Likewise. * testsuite/ld-powerpc/tlsexe.r: Likewise. * testsuite/ld-powerpc/tlsexe32.r: Likewise. * testsuite/ld-powerpc/tlsexetoc.r: Likewise. * testsuite/ld-s390/tlsbin.rd: Likewise. * testsuite/ld-s390/tlsbin_64.rd: Likewise. * testsuite/ld-sparc/tlssunbin32.rd: Likewise. * testsuite/ld-sparc/tlssunbin64.rd: Likewise. * testsuite/ld-elf/pr22423.d: New test.
2017-11-12ld: Add OTHER_PLT_SECTIONSH.J. Lu6-10/+22
OTHER_PLT_SECTIONS contains sections which should be placed right after .plt section. * emulparams/elf32_x86_64.sh (TINY_READONLY_SECTION): Renamed to ... (OTHER_PLT_SECTIONS): This. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * scripttempl/elf.sc: Place ${OTHER_PLT_SECTIONS} just after .plt.
2017-11-09ld: Reformat emultempl/elf32.emH.J. Lu2-4/+12
Reformat emultempl/elf32.em to generate consistent codes. * emultempl/elf32.em (gld${EMULATION_NAME}_get_script): Reformat to generate consistent codes.
2017-11-07readelf ngettext fixesAlan Modra149-164/+316
This patch is a first pass at fixing readelf message pluralization. I've deliberately not fixed the "out of memory" errors since it's very unlikely that they will ever be complaining about not being able to allocate for a single entry, and a few others where the size is very unlikely to be 1 byte. Then there are messages like this one: "Out of %lu items there are %zu bucket clashes (longest of %zu entries).\n" I suppose this could be split into three parts, "Of %lu items ", "there are %zu bucket clashes ", and "(longest of %zu entries).\n", each part being printed separately, but that might not be ideal for sentence construction in other languages. For now I'm punting on this one. Changes to readelf output require lots of testsuite adjustment.. binutils/ * dwarf.c (read_uleb128): Properly pluralize messages. (display_debug_lines_raw, display_debug_loc): Likewise. (display_debug_names, process_cu_tu_index): Likewise. * od-macho.c (dump_code_signature_superblob): Likewise. * readelf.c (process_program_headers): Likewise. (process_section_header, process_relocs): Likewise. (hppa_process_unwind, arm_process_unwind): Likewise. (process_dynamic_section, process_version_sections): Likewise. (process_symbol_table, process_syminfo): Likewise. (apply_relocations, process_mips_specific): Likewise. (process_gnu_liblist, process_notes_at): Likewise. (process_archive): Likewise. * testsuite/binutils-all/dw2-1.W, * testsuite/binutils-all/dw2-3.W, * testsuite/binutils-all/dw2-3gabi.W, * testsuite/binutils-all/dw5.S, * testsuite/binutils-all/dw5.W, * testsuite/binutils-all/i386/compressed-1a.d, * testsuite/binutils-all/libdw2-compressedgabi.out, * testsuite/binutils-all/objdump.W, * testsuite/binutils-all/readelf.r, * testsuite/binutils-all/readelf.r-64, * testsuite/binutils-all/x86-64/compressed-1a.d: Update for pluralization fixes. gas/ * testsuite/gas/arm/got_prel.d, * testsuite/gas/elf/dwarf2-1.d, * testsuite/gas/elf/dwarf2-2.d, * testsuite/gas/elf/dwarf2-3.d, * testsuite/gas/elf/dwarf2-5.d, * testsuite/gas/elf/dwarf2-6.d, * testsuite/gas/i386/debug1.d, * testsuite/gas/i386/dw2-compress-1.d, * testsuite/gas/i386/dw2-compress-3a.d, * testsuite/gas/i386/dw2-compress-3b.d, * testsuite/gas/i386/dw2-compressed-1.d, * testsuite/gas/i386/dw2-compressed-3a.d, * testsuite/gas/i386/dw2-compressed-3b.d, * testsuite/gas/i386/ilp32/x86-64-localpic.d, * testsuite/gas/i386/localpic.d, * testsuite/gas/i386/x86-64-localpic.d, * testsuite/gas/ia64/pr13167.d, * testsuite/gas/mips/loc-swap-2.d, * testsuite/gas/mips/loc-swap.d, * testsuite/gas/mips/micromips@loc-swap-2.d, * testsuite/gas/mips/micromips@loc-swap.d, * testsuite/gas/mips/mips16-dwarf2-n32.d, * testsuite/gas/mips/mips16-dwarf2.d, * testsuite/gas/mips/mips16@loc-swap-2.d, * testsuite/gas/mips/mips16@loc-swap.d, * testsuite/gas/mips/mips16e@loc-swap.d, * testsuite/gas/mmix/bspec-1.d, * testsuite/gas/mmix/bspec-2.d, * testsuite/gas/tic6x/unwind-1.d, * testsuite/gas/tic6x/unwind-2.d, * testsuite/gas/tic6x/unwind-3.d: Update for pluralization fixes. ld/ * testsuite/ld-aarch64/ifunc-13.d, * testsuite/ld-aarch64/ifunc-15.d, * testsuite/ld-aarch64/ifunc-20.d, * testsuite/ld-alpha/tlsbin.rd, * testsuite/ld-alpha/tlspic.rd, * testsuite/ld-arm/ifunc-3.rd, * testsuite/ld-arm/ifunc-9.rd, * testsuite/ld-arm/unwind-mix.d, * testsuite/ld-arm/unwind-rel.d, * testsuite/ld-cris/hiddef1.d, * testsuite/ld-cris/libdso-13.d, * testsuite/ld-cris/libdso-2.d, * testsuite/ld-cris/pr16044.d, * testsuite/ld-cris/tls-local-63.d, * testsuite/ld-cris/tls-local-64.d, * testsuite/ld-cris/tls-und-38.d, * testsuite/ld-cris/tls-und-42.d, * testsuite/ld-cris/tls-und-46.d, * testsuite/ld-cris/tls-und-50.d, * testsuite/ld-cris/weakref3.d, * testsuite/ld-cris/weakref4.d, * testsuite/ld-elf/comm-data2r.rd, * testsuite/ld-elf/discard1.d, * testsuite/ld-elf/discard2.d, * testsuite/ld-elf/pr19539.d, * testsuite/ld-elf/pr22374-1.r, * testsuite/ld-elf/pr22374-2.r, * testsuite/ld-i386/combreloc.d, * testsuite/ld-i386/emit-relocs-nacl.rd, * testsuite/ld-i386/emit-relocs.rd, * testsuite/ld-i386/pr13302.d, * testsuite/ld-i386/pr17709-nacl.rd, * testsuite/ld-i386/pr17709.rd, * testsuite/ld-i386/pr19539.d, * testsuite/ld-i386/pr19615.d, * testsuite/ld-i386/pr19636-1a.d, * testsuite/ld-i386/pr19636-1e.d, * testsuite/ld-i386/pr19636-1f.d, * testsuite/ld-i386/pr19636-2a.d, * testsuite/ld-i386/pr19636-2b.d, * testsuite/ld-i386/pr19636-2d-nacl.d, * testsuite/ld-i386/pr19636-2e-nacl.d, * testsuite/ld-i386/pr19636-3a.d, * testsuite/ld-i386/pr19636-3d.d, * testsuite/ld-i386/pr19636-3e.d, * testsuite/ld-i386/pr19636-4a.d, * testsuite/ld-i386/pr19645.d, * testsuite/ld-i386/pr19827-nacl.rd, * testsuite/ld-i386/pr19827.rd, * testsuite/ld-i386/pr20253-4a.d, * testsuite/ld-i386/pr20253-4b.d, * testsuite/ld-i386/pr20253-5.d, * testsuite/ld-i386/tlsbin-nacl.rd, * testsuite/ld-i386/tlsbin.rd, * testsuite/ld-i386/tlspic-nacl.rd, * testsuite/ld-i386/tlspic.rd, * testsuite/ld-i386/undefweakb.d, * testsuite/ld-ia64/tlsbin.rd, * testsuite/ld-ia64/tlspic.rd, * testsuite/ld-ifunc/ifunc-13-i386.d, * testsuite/ld-ifunc/ifunc-13-x86-64.d, * testsuite/ld-ifunc/ifunc-15-i386.d, * testsuite/ld-ifunc/ifunc-15-x86-64.d, * testsuite/ld-ifunc/ifunc-20-i386.d, * testsuite/ld-ifunc/ifunc-20-x86-64.d, * testsuite/ld-ifunc/ifunc-23a-x86.d, * testsuite/ld-ifunc/ifunc-23b-x86.d, * testsuite/ld-ifunc/ifunc-23c-x86.d, * testsuite/ld-ifunc/ifunc-24a-x86.d, * testsuite/ld-ifunc/ifunc-24b-x86.d, * testsuite/ld-ifunc/ifunc-24c-x86.d, * testsuite/ld-ifunc/ifunc-25a-x86.d, * testsuite/ld-ifunc/ifunc-25b-x86.d, * testsuite/ld-ifunc/ifunc-25c-x86.d, * testsuite/ld-m68k/got-1.d, * testsuite/ld-mips-elf/vxworks1.rd, * testsuite/ld-powerpc/ambiguousv1.d, * testsuite/ld-powerpc/ambiguousv1b.d, * testsuite/ld-powerpc/ambiguousv2.d, * testsuite/ld-powerpc/ambiguousv2b.d, * testsuite/ld-powerpc/tlsexe.r, * testsuite/ld-powerpc/tlsexe32.r, * testsuite/ld-powerpc/tlsexetoc.r, * testsuite/ld-powerpc/tlsso.r, * testsuite/ld-powerpc/tlsso32.r, * testsuite/ld-powerpc/tlstocso.r, * testsuite/ld-powerpc/vle-multiseg-1.d, * testsuite/ld-powerpc/vle-multiseg-2.d, * testsuite/ld-powerpc/vle-multiseg-3.d, * testsuite/ld-s390/tlsbin.rd, * testsuite/ld-s390/tlsbin_64.rd, * testsuite/ld-s390/tlspic.rd, * testsuite/ld-s390/tlspic_64.rd, * testsuite/ld-sh/ld-r-1.d, * testsuite/ld-sh/sh64/gotplt.d, * testsuite/ld-sh/shared-1.d, * testsuite/ld-sh/tlsbin-2.d, * testsuite/ld-sh/tlspic-2.d, * testsuite/ld-sparc/gotop32.rd, * testsuite/ld-sparc/gotop64.rd, * testsuite/ld-sparc/tlssunpic32.rd, * testsuite/ld-sparc/tlssunpic64.rd, * testsuite/ld-sparc/vxworks1-lib.rd, * testsuite/ld-tic6x/shlib-app-1.rd, * testsuite/ld-tic6x/shlib-app-1b.rd, * testsuite/ld-tic6x/shlib-app-1r.rd, * testsuite/ld-tic6x/shlib-app-1rb.rd, * testsuite/ld-tic6x/shlib-noindex.rd, * testsuite/ld-vax-elf/export-class-data.rd, * testsuite/ld-x86-64/pr13082-1a.d, * testsuite/ld-x86-64/pr13082-1b.d, * testsuite/ld-x86-64/pr13082-2a.d, * testsuite/ld-x86-64/pr13082-2b.d, * testsuite/ld-x86-64/pr13082-3a.d, * testsuite/ld-x86-64/pr13082-3c.d, * testsuite/ld-x86-64/pr13082-4a.d, * testsuite/ld-x86-64/pr13082-5a.d, * testsuite/ld-x86-64/pr13082-5b.d, * testsuite/ld-x86-64/pr13082-6a.d, * testsuite/ld-x86-64/pr13082-6b.d, * testsuite/ld-x86-64/pr17709-nacl.rd, * testsuite/ld-x86-64/pr17709.rd, * testsuite/ld-x86-64/pr19539a.d, * testsuite/ld-x86-64/pr19539b.d, * testsuite/ld-x86-64/pr19615.d, * testsuite/ld-x86-64/pr19636-1a.d, * testsuite/ld-x86-64/pr19636-1d.d, * testsuite/ld-x86-64/pr19636-1e.d, * testsuite/ld-x86-64/pr19636-2a.d, * testsuite/ld-x86-64/pr19636-2e.d, * testsuite/ld-x86-64/pr19636-2f.d, * testsuite/ld-x86-64/pr19636-3a.d, * testsuite/ld-x86-64/pr19645.d, * testsuite/ld-x86-64/pr19807-2b.d, * testsuite/ld-x86-64/pr19807-2d.d, * testsuite/ld-x86-64/pr19827-nacl.rd, * testsuite/ld-x86-64/pr19827.rd, * testsuite/ld-x86-64/pr20253-4a.d, * testsuite/ld-x86-64/pr20253-4b.d, * testsuite/ld-x86-64/pr20253-4d.d, * testsuite/ld-x86-64/pr20253-4e.d, * testsuite/ld-x86-64/pr20253-5a.d, * testsuite/ld-x86-64/pr20253-5b.d, * testsuite/ld-x86-64/tlsbin-nacl.rd, * testsuite/ld-x86-64/tlsbin.rd, * testsuite/ld-x86-64/tlspic-nacl.rd, * testsuite/ld-x86-64/tlspic.rd, * testsuite/ld-x86-64/tlspic2-nacl.rd: Update for pluralization fixes.
2017-11-07gas and ld pluralization fixesAlan Modra2-4/+17
gas/ * as.c (main): Properly pluralize messages. * frags.c (frag_grow): Likewise. * read.c (emit_expr_with_reloc, emit_expr_fix): Likewise. (parse_bitfield_cons): Likewise. * write.c (fixup_segment, compress_debug, write_contents): Likewise. (relax_segment): Likewise. * config/tc-arm.c (s_arm_elf_cons): Likewise. * config/tc-cr16.c (l_cons): Likewise. * config/tc-i370.c (i370_elf_cons): Likewise. * config/tc-m68k.c (m68k_elf_cons): Likewise. * config/tc-msp430.c (msp430_operands): Likewise. * config/tc-s390.c (s390_elf_cons, s390_literals): Likewise. * config/tc-mcore.c (md_apply_fix): Likewise. * config/tc-tic54x.c (md_assemble): Likewise. * config/tc-xtensa.c (xtensa_elf_cons): Likewise. (xg_expand_assembly_insn): Likewise. * config/xtensa-relax.c (build_transition): Likewise. ld/ * ldlang.c (lang_size_sections_1): Properly pluralize messages. (lang_check_section_addresses): Likewise.
2017-11-07ngettext supportAlan Modra2-2/+13
binutils has lacked proper pluralization of output messages for a long time, for example, readelf will display information about a section that "contains 1 entries" or "There are 1 section headers". Fixing this properly requires us to use ngettext, because other languages have different rules to English. This patch defines macros for ngettext and friends to handle builds with --disable-nls, and tidies the existing nls support. I've redefined gettext rather than just defining "_" as dgettext in bfd and opcodes in case someone wants to use gettext there (which might conceivably happen with generated code). bfd/ * sysdep.h: Formatting, comment fixes. (gettext, ngettext): Redefine when ENABLE_NLS. (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. (_): Define using gettext. (textdomain, bindtextdomain): Use safer "do nothing". * hosts/alphavms.h (textdomain, bindtextdomain): Likewise. (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. opcodes/ * opintl.h: Formatting, comment fixes. (gettext, ngettext): Redefine when ENABLE_NLS. (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. (_): Define using gettext. (textdomain, bindtextdomain): Use safer "do nothing". binutils/ * sysdep.h (textdomain, bindtextdomain): Use safer "do nothing". (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. gas/ * asintl.h (textdomain, bindtextdomain): Use safer "do nothing". (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. gold/ * system.h (textdomain, bindtextdomain): Use safer "do nothing". (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS. ld/ * ld.h (textdomain, bindtextdomain): Use safer "do nothing". (ngettext, dngettext, dcngettext): Define when !ENABLE_NLS.
2017-11-01PR22374, PowerPC unnecessary PLT entriesAlan Modra2-5/+4
We don't need a PLT entry when function pointer initialization in a read/write section is the only reference to a given function symbol. This patch prevents the unnecessary PLT entry, and ensures no dynamic relocs are emitted when UNDEFWEAK_NO_DYNAMIC_RELOC says so. bfd/ PR 22374 * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Don't create a plt entry when just a dynamic reloc can serve. Ensure no dynamic relocations when UNDEFWEAK_NO_DYNAMIC_RELOC by setting non_got_ref. Expand and move the non_got_ref comment. * elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise. ld/ * testsuite/ld-powerpc/ambiguousv2.d: Remove FIXME.
2017-11-01PR22374 testcase, function pointer references in .dataAlan Modra6-0/+39
Function pointer references in .data ought to use a dynamic reloc. There shouldn't be any need for a PLT entry and definitely no copy reloc. This test fails on quite a few targets, but isn't something that anyone should worry about too much. It's really just a missed optimization. PR 22374 * testsuite/ld-elf/pr22374a.s, * testsuite/ld-elf/pr22374b.s, * testsuite/ld-elf/pr22374-1.r, * testsuite/ld-elf/pr22374-2.r: New test. * testsuite/ld-elf/elf.exp: Run it.
2017-11-01Tidy elf.expAlan Modra2-36/+29
* testsuite/ld-elf/elf.exp: Merge some conditionals, a better name than "shared library for next test", and use xfail arg of run_ld_link_tests in a few places.
2017-10-26[PR21703]Adjust pr21703 tests on various targets.Renlin Li4-9/+41
xfail tests for certain targets. Check shared library support for shared test. Relax pr21703-r.sd and pr21703-shared.sd with additional "#..." pattern lines. ld/ * testsuite/ld-elf/elf.exp: xfail pr21703 tests on specific targets. Only run shared lib test for targets which support it. * testsuite/ld-elf/pr21703-r.sd: Adjust the expected output. * testsuite/ld-elf/pr21703-shared.sd: Likewise.
2017-10-26As Alan predicted at ↵James Greenhalgh4-29/+35
https://sourceware.org/ml/binutils/2017-10/msg00137.html the values in some Arm tests need updating after recent changes. These looked a bit spooky at first, but they are just a difference in the order we emit veneers and far jumps, so are not so scary after all. Checked with an arm-none-eabi tester and an arm-none-linux-gnueabi tester with no issues. * testsuite/ld-arm/cortex-a8-far.d: Update expected disassembly. * testsuite/ld-arm/farcall-group-size2: Likewise. * testsuite/ld-arm/farcall-group.d: Likewise.
2017-10-25ld: Correct -z ibt documentationH.J. Lu2-1/+5
* ld.texinfo: Correct -z ibt.
2017-10-25Allow for __gnu_lto_slim prefixed with extra "_"Alan Modra3-2/+8
Some targets prefix global symbols with "_". bfd/ * archive.c (_bfd_compute_and_write_armap): Match "__gnu_lto_slim" optionally prefixed with "_". * linker.c (_bfd_generic_link_add_one_symbol): Likewise. binutils/ * nm.c (filter_symbols): Match "__gnu_lto_slim" optionally prefixed with "_". gold/ * symtab.cc (Symbol_table::add_from_relobj): Match "__gnu_lto_slim" optionally prefixed with "_". ld/ * testsuite/ld-plugin/lto-3r.d: Match "__gnu_lto_v" optionally prefixed with "_". * testsuite/ld-plugin/lto-5r.d: Likewise.
2017-10-25Fix format typos in previous previous ld/ChangeLog entryHans-Peter Nilsson1-3/+3
2017-10-25testsuite/ld-riscv-elf/ld-riscv-elf.exp: Fix typo for istarget.Hans-Peter Nilsson2-1/+5
2017-10-24RISC-V: Only relax to C.LUI when imm != 0 and rd != 0/2Andrew Waterman4-0/+52
This matches the ISA specification. This also adds two tests: one to make sure the assembler rejects invalid 'c.lui's, and one to make sure we only relax valid 'c.lui's. bfd/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * elfnn-riscv.c (_bfd_riscv_relax_lui): Don't relax to c.lui when rd is x0. include/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * opcode/riscv.h (VALID_RVC_LUI_IMM): c.lui can't load the immediate 0. gas/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * testsuite/gas/riscv/c-lui-fail.d: New testcase. gas/testsuite/gas/riscv/c-lui-fail.l: Likewise. gas/testsuite/gas/riscv/c-lui-fail.s: Likewise. gas/testsuite/gas/riscv/riscv.exp: Likewise. ld/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * ld/testsuite/ld-riscv-elf/c-lui.d: New testcase. ld/testsuite/ld-riscv-elf/c-lui.s: Likewise. ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp: New test suite.
2017-10-24[BFD][PR21703]Override the new defined symbol with the old normal symbol ↵Renlin Li10-0/+92
when --allow-multiple-definition is provided. The behavior of _bfd_elf_merge_symbol and _bfd_generic_link_add_one_symbol is inconsistent. In multiple definition case, _bfd_elf_merge_symbol decided to override the old symbol definition with the new defintion, (size, type, target data) In _bfd_generic_link_add_one_symbol, it simply return without doing anything because of allow-multiple-definition is provided. This leaves the symbol in a wrong state. Here, following the documentation, I made this patch to force the old definition override the new definition if the old symbol is not dynamic or weak. Because, in those two cases, it's expected to do some merge. I have checked that, those two cases are properly handled. bfd/ PR ld/21703 * elflink.c (_bfd_elf_merge_symbol): Handle multiple definition case. ld/ PR ld/21703 * testsuite/ld-elf/elf.exp: Run new tests. * testsuite/ld-elf/pr21703-1.s: New. * testsuite/ld-elf/pr21703-2.s: New. * testsuite/ld-elf/pr21703-3.s: New. * testsuite/ld-elf/pr21703-4.s: New. * testsuite/ld-elf/pr21703-r.sd: New. * testsuite/ld-elf/pr21703-shared.sd: New. * testsuite/ld-elf/pr21703.sd: New. * testsuite/ld-elf/pr21703.ver: New.
2017-10-23i386: Don't add elf32_x86_64 to supported emulationsH.J. Lu2-2/+6
For 32-bit BFD, since elf64-x86-64.o isn't compiled in, "-m elf32_x86_64" never worked. Don't add elf32_x86_64 to supported emulations with 32-bit BFD. * configure.tgt (i[3-7]86-*-linux-*): Move elf32_x86_64 from targ_extra_libpath to targ64_extra_libpath.
2017-10-23Make sure that undefined symbols added to the linker command line via the -u ↵Nick Clifton4-8/+27
option appear in the output executable, if they have not been resolved. PR 22319 bfd * elflink.c (elf_link_output_extsym): Keep global undefined symbols if they have been marked as needed. ld * testsuite/ld-elf/pr22310.s: New test source file. * testsuite/ld-elf/pr22310.d: New test driver. * testsuite/ld-mmix/undef-3.d: Update expected output from readelf.
2017-10-21PR ld/21233Hans-Peter Nilsson2-6/+5
* testsuite/ld-elf/shared.exp: Remove kfails. The test-cases started passing with 5c3261b0e834647c, "ELF: Call check_relocs after opening all inputs". The lists could now be re-concatenated (see other run_ld_link_tests calls in shared.exp), but are for now left separate to simplify future kfail/xfailing.
2017-10-20Add a compile-time test for PR ld/22269H.J. Lu4-0/+33
This compile-time test requires a target C compiler to run. It fails on many targets where ELF backend linkers fail to check undefined weak symbol in static PIE via UNDEFWEAK_NO_DYNAMIC_RELOC. PR ld/22269 * testsuite/ld-elf/pr22269-1.rd: New file. * testsuite/ld-elf/pr22269-1.c: Likewise. * testsuite/ld-elf/shared.exp: Run pr22269-1.
2017-10-19RISC-V: Add R_RISCV_DELETE, which marks bytes for deletionPalmer Dabbelt2-1/+6
We currently delete bytes by shifting an entire BFD backwards to overwrite the bytes we no longer need. The result is that relaxing a BFD is quadratic time. This patch adds an additional relocation that specifies a byte range that will be deleted from the final object file, and adds a relaxation pass (between the existing passes that delete bytes and the alignment pass) that actually deletes the bytes. Note that deletion is still quadratic time, and nothing uses R_RISCV_DELETE yet. I've been meaning to go convert all the other relaxations to use R_RISCV_DELETE and then make it faster, but this patch has been sitting around for months so it looks like that won't happen for a bit. The PCREL->GPREL relaxation that comes next uses this, and since we've been using these two patches out of tree since I wrote them months ago I figure it's better to just get them in now. I (or someone else :)) can convert all the relocations later... R_RISCV_DELETE will never be emitted into ELF objects, so therefor isn't exposed to the rest of binutils. As such, we're not considering this as part of the ABI. bfd/ChangeLog 2017-10-19 Palmer Dabbelt <palmer@dabbelt.com> * elfnn-riscv (R_RISCV_DELETE): New define. (_bfd_riscv_relax_delete): New function. (perform_relocation): Handle R_RISCV_DELETE. (_bfd_riscv_relax_section): Likewise. ld/ChangeLog 2017-10-19 Palmer Dabbelt <palmer@dabbelt.com> * emultempl/riscvelf.em (riscv_elf_before_allocation): Add a third relaxation pass.
2017-10-17Correct -z text and other -z documentationAlan Modra2-95/+94
-z text applies to all dynamic binaries, not just shared libraries. A lot of the other options needed attention too. * ld.texinfo (-z): Combine negative options with corresponding positive option. Sort the table. Expand and correct "combreloc", "common", "common-page-size", "interpose", "loadfltr", "max-page-size", "muldefs", "nodefaultlib", "nodelete", "nodlopen", "nodump", "noextern-protected-data", "now", "origin", and "text".
2017-10-16ELF: Call check_relocs after opening all inputsH.J. Lu55-130/+194
For all ELF targers, call check_relocs after opening all inputs and garbage collection. Since the symbol resolution is known, check_relocs can be simplified. Also garbage collection doesn't need to undo what check_relocs has done for symbols which have been garbage collected. Since ELF targets never see the removed sections, gc_sweep_hook can be removed from elf_backend_data and we can avoid GOT/PLT with garbage collection now. Set link_info.check_relocs_after_open_input to TRUE for all linker targets which use ELF linker and update garbage collection tests to remove unused GOT section. ldemul_after_check_relocs is added for powerpc to support --secure-plt, --bss-plt and --sdata-got. Tested natively without regressions on i686, x86-64 and x32. Tested cross binutils on x86-64 without regressions for aarch64-linux, alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux, hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux, mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf, nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux, riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf, sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux, tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux. bfd/ * elf-bfd.h (elf_backend_data): Remove gc_sweep_hook. * elf32-arm.c (elf32_arm_gc_sweep_hook): Removed. (elf_backend_gc_sweep_hook): Likewise. * elf32-bfin.c (bfin_gc_sweep_hook): Likewise. (bfinfdpic_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-cris.c (cris_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook from comments. (elf_m68k_remove_got_entry_type): Removed. (elf_m68k_find_got_entry_ptr): Likewise. (elf_m68k_remove_got_entry): Likewise. (elf_m68k_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-metag.c (elf_metag_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-mips.c (elf_backend_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-s390.c (elf_s390_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise. * elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise. * elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-vax.c (elf_vax_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-mips.c (elf_backend_gc_sweep_hook): Likewise. * elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise. (ppc64_elf_gc_sweep_hook): Likewise. * elf64-s390.c (elf_s390_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise. * elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise. * elflink.c (elf_link_add_object_symbols): Don't call _bfd_elf_link_check_relocs here. (gc_sweep_hook_fn): Removed. (elf_gc_sweep): Remove gc_sweep_hook. * elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed. (elf_backend_gc_sweep_hook): Likewise. * elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise. * elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise. * elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise. * elfxx-target.h (elf_backend_gc_sweep_hook): Likewise. (elfNN_bed): Remove elf_backend_gc_sweep_hook. * elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed. * elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise. ld/ * emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Removed. * emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse): Set link_info.check_relocs_after_open_input to TRUE. * emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Likewise. * emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse): Likewise. * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add after_parse_default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/m68kcoff.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/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always set link_info.check_relocs_after_open_input to TRUE. (ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS. * emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Set link_info.check_relocs_after_open_input to TRUE. (ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default. * emultempl/mmix-elfnmmo.em (mmix_before_parse): New function. (LDEMUL_BEFORE_PARSE): New. * emultempl/mmixelf.em (elfmmix_before_parse): Replace gld${EMULATION_NAME}_before_parse with mmix_before_parse. * emultempl/ppc32elf.em (ppc_after_open): Renamed to ... (ppc_after_check_relocs): This. Call after_check_relocs_default instead of gld${EMULATION_NAME}_after_open. (LDEMUL_AFTER_OPEN): Removed. (LDEMUL_AFTER_CHECK_RELOCS): New. * ldemul.c (ldemul_after_check_relocs): New. (after_check_relocs_default): Likewise. * ldemul.h (ldemul_after_check_relocs): Likewise. (after_check_relocs_default): Likewise. (ld_emulation_xfer_struct): Add after_check_relocs. * ldlang.c (lang_process): Call ldemul_after_check_relocs after lang_check_relocs. * testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section. * testsuite/ld-aarch64/gc-tls-relocs.d: Likewise. * testsuite/ld-cris/tls-gc-68.d: Likewise. * testsuite/ld-cris/tls-gc-69.d: Likewise. * testsuite/ld-cris/tls-gc-70.d: Likewise. * testsuite/ld-cris/tls-gc-75.d: Likewise. * testsuite/ld-cris/tls-gc-79.d: Likewise. * testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents section.
2017-10-14cris: Check UNDEFWEAK_NO_DYNAMIC_RELOCH.J. Lu2-10/+13
Don't generate dynamic relocation against weak undefined symbol if it is resolved to zero. FIXME: UNDEFWEAK_NO_DYNAMIC_RELOC may need to be checked in more places. bfd/ PR ld/22269 * elf32-cris.c (cris_elf_relocate_section): Don't generate dynamic relocation if UNDEFWEAK_NO_DYNAMIC_RELOC is true. (cris_elf_check_relocs): Don't allocate dynamic relocation if UNDEFWEAK_NO_DYNAMIC_RELOC is true. ld/ PR ld/22269 * testsuite/ld-cris/weakhiddso.d: Update and remove R_CRIS_NONE.
2017-10-14PR22263 testcaseAlan Modra3-3/+12
A number of targets need dynamic relocs in PIEs for reasons other than relocating thread variables. The PR is about text relocations, and, reading between the lines, unnecessary dynamic tprel relocations. Change the test to check for those conditions rather than no dynamic relocations PR ld/22263 * testsuite/ld-elf/tls.exp: Link with -z text. * testsuite/ld-elf/pr22263-1.rd: Test for tprel relocs.
2017-10-12Add a compile-time test for PR ld/22263H.J. Lu5-0/+80
This compile-time test requires a target C compiler to run. It fails on many targets where ELF backend linkers incorrectly check bfd_link_pic for TLS relocations, which should check bfd_link_executable instead. PR ld/22263 * testsuite/ld-elf/pr22263-1.rd: New file. * testsuite/ld-elf/pr22263-1a.c: Likewise. * testsuite/ld-elf/pr22263-1b.c: Likewise. * testsuite/ld-elf/tls.exp: Likewise.
2017-10-12ld whitespace fixesAlan Modra133-1238/+1235
* pe-dll.c: Formatting, whitespace fixes. * NEWS: Whitespace fixes. * configure.ac: Likewise. * configure.tgt: Likewise. * deffilep.y: Likewise. * genscripts.sh: Likewise. * ld.texinfo: Likewise. * ldgram.y: Likewise. * ldlang.c: Likewise. * ldlex.l: Likewise. * lexsup.c: Likewise. * plugin.c: Likewise. * emulparams/arc-endianness.sh: Likewise. * emulparams/elf32_x86_64.sh: Likewise. * emulparams/elf64mmix.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/h8300elf.sh: Likewise. * emulparams/h8300elf_linux.sh: Likewise. * emulparams/vxworks.sh: Likewise. * emultempl/aarch64elf.em: Likewise. * emultempl/aix.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/metagelf.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/nds32elf.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/sh64elf.em: Likewise. * emultempl/spu_ovl.S: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/tic6xdsbt.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vms.em: Likewise. * po/Make-in: Likewise. * scripttempl/DWARF.sc: Likewise. * scripttempl/aix.sc: Likewise. * scripttempl/alpha.sc: Likewise. * scripttempl/alphavms.sc: Likewise. * scripttempl/aout.sc: Likewise. * scripttempl/arclinux.sc: Likewise. * scripttempl/armaout.sc: Likewise. * scripttempl/armbpabi.sc: Likewise. * scripttempl/armcoff.sc: Likewise. * scripttempl/avr.sc: Likewise. * scripttempl/crisaout.sc: Likewise. * scripttempl/delta68.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32cr16c.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise. * scripttempl/elf32msp430_3.sc: Likewise. * scripttempl/elf32sh-symbian.sc: Likewise. * scripttempl/elf32xc16x.sc: Likewise. * scripttempl/elf32xc16xl.sc: Likewise. * scripttempl/elf32xc16xs.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfd30v.sc: Likewise. * scripttempl/elfi370.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/epocpe.sc: Likewise. * scripttempl/h8300.sc: Likewise. * scripttempl/h8300h.sc: Likewise. * scripttempl/h8300hn.sc: Likewise. * scripttempl/h8300s.sc: Likewise. * scripttempl/h8300sn.sc: Likewise. * scripttempl/h8300sx.sc: Likewise. * scripttempl/h8300sxn.sc: Likewise. * scripttempl/h8500.sc: Likewise. * scripttempl/h8500b.sc: Likewise. * scripttempl/h8500c.sc: Likewise. * scripttempl/h8500m.sc: Likewise. * scripttempl/h8500s.sc: Likewise. * scripttempl/hppaelf.sc: Likewise. * scripttempl/i386beos.sc: Likewise. * scripttempl/i386coff.sc: Likewise. * scripttempl/i386go32.sc: Likewise. * scripttempl/i386msdos.sc: Likewise. * scripttempl/i860coff.sc: Likewise. * scripttempl/i960.sc: Likewise. * scripttempl/ia64vms.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/m68kaux.sc: Likewise. * scripttempl/m68kcoff.sc: Likewise. * scripttempl/m88kbcs.sc: Likewise. * scripttempl/mcorepe.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/mips.sc: Likewise. * scripttempl/mipsbsd.sc: Likewise. * scripttempl/mmo.sc: Likewise. * scripttempl/moxie.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/nw.sc: Likewise. * scripttempl/pe.sc: Likewise. * scripttempl/pep.sc: Likewise. * scripttempl/pj.sc: Likewise. * scripttempl/ppcpe.sc: Likewise. * scripttempl/psos.sc: Likewise. * scripttempl/riscix.sc: Likewise. * scripttempl/sh.sc: Likewise. * scripttempl/sparccoff.sc: Likewise. * scripttempl/st2000.sc: Likewise. * scripttempl/tic30aout.sc: Likewise. * scripttempl/tic30coff.sc: Likewise. * scripttempl/tic4xcoff.sc: Likewise. * scripttempl/tic54xcoff.sc: Likewise. * scripttempl/tic80coff.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/vanilla.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/w65.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * scripttempl/z8000.sc: Likewise. * configure: Regenerate.
2017-10-12Force the AArch64 linker backend to refuse to link when it encounters ↵Nick Clifton3-14/+34
unresoleable relocations. * reloc.c (enum bfd_reloc_status): Start values at 2. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (aarch64_relocate): Invert sense of function, so that a TRUE return indicates success. Compare the result of calling _bfd_aarch64_elf_put_addend against bfd_reloc_ok. (build_one_stub): Change sense of tests against aarch64_relocate return value. (elfNN_aarch64_tls_relax): Return bfd_reloc_notsupported, rather than FALSE, when an error is detected. (elfNN_aarch64_final_link_relocate): Likewise. * testsuite/ld-aarch64/pcrel_pic_defined.d: Expect errors not warnings. Expect errors about unsupported relocations. * testsuite/ld-aarch64/pcrel_pic_undefined.d: Likewise.
2017-10-12ld: Update tests for warning of "-z dynamic-undefined-weak ignored"H.J. Lu9-9/+29
Update tests to expect warning of "-z dynamic-undefined-weak ignored" from commit 22b1ee183d19a92cc57859c04307d31c06792d13 Author: Alan Modra <amodra@gmail.com> Date: Thu Oct 12 13:19:10 2017 +1030 Set dynamic_undefined_weak to zero for static PIEs * testsuite/ld-elf/pr22269b.d: Expect warning of "-z dynamic-undefined-weak ignored". * testsuite/ld-i386/pr19636-1j.d: Likewise. * testsuite/ld-i386/pr19636-1k.d: Likewise. * testsuite/ld-i386/pr19636-1l.d: Likewise. * testsuite/ld-x86-64/pr19636-2j.d: Likewise. * testsuite/ld-x86-64/pr19636-2k.d: Likewise. * testsuite/ld-x86-64/pr19636-2l.d: Likewise. * testsuite/ld-x86-64/pr19636-2m.d: Likewise.
2017-10-12Set dynamic_undefined_weak to zero for static PIEsAlan Modra2-0/+14
I believe we should be warning if ld is given both --no-dynamic-linker and -z dynamic-undefined-weak. The two options are contradictory, the first says an executable has no dynamic interpreter to resolve dynamic symbols, while the second is asking for dynamic symbols to be emitted. (And even if a static PIE's relocation code, which is needed to process R_*_RELATIVE relocs, could process symbols, there are no DT_NEEDED dynamic objects to define such symbols.) I also think that dynamic_undefined_weak is the right flag to control whether undefined weaks are made dynamic, whether in static PIEs or anywhere else. So force it to 0 for static PIEs, fixing PR 22269 for powerpc and any other target where the backend usually defaults to undefined weaks being made dynamic. This patch introduces regressions. I'd normally not do that, but these are all in very recently added test cases, or expose bugs in the x86 backend. The test cases were added after I'd made it known that this patch or one like it was imminent. PR 22269 * emultempl/elf32.em (after_parse): Warn on --no-dynamic-linker -z dynamic-undefined-weak combination. Set dynamic_undefined_weak to zero when nointerp.
2017-10-12_bfd_elf_link_hash_hide_symbol calls in generic ELF codeAlan Modra2-32/+40
This function shouldn't be called directly, except from backend code. bfd/ * elflink.c (_bfd_elf_adjust_dynamic_symbol): Call elf_backend_hide_symbol, not _bfd_elf_link_hash_hide_symbol. (bfd_elf_define_start_stop): Likewise. ld/ * emultempl/elf32.em (before_allocation): Call elf_backend_hide_symbol, not _bfd_elf_link_hash_hide_symbol. Formatting.
2017-10-11Add 2 testcases for PR ld/22269H.J. Lu4-0/+40
Since undefined weak symbols in static PIE are always resolved to 0 at run-time, linker should resolve them as 0 at link-time, regardless of whether "-z dynamic-undefined-weak" is used. "-z dynamic-undefined-weak" only makes undefined weak symbols dynamic, but doesn't change undefined weak symbol resolution in static PIE at link-time. These tests currently pass on x86, but fails on many other targets. The framework to resolve weak symbols in static PE at link-time is posted at https://sourceware.org/ml/binutils/2017-10/msg00087.html which requires users/hjl/check_relocs branch to call check_relocs after opening all inputs. I will submit backend patches for failling targets after merging users/hjl/check_relocs branch next. * PR ld/22269 * testsuite/ld-elf/pr22269.s: New file. * testsuite/ld-elf/pr22269a.d: Likewise. * testsuite/ld-elf/pr22269b.d: Likewise.
2017-10-11x86: Run PR ld/19636 tests with -z dynamic-undefined-weakH.J. Lu15-0/+190
"-z dynamic-undefined-weak" makes undefined weak symbols dynamic, but undefined weak symbols are still resolved to 0 at link-time if there is no dynamic linker in executable. * testsuite/ld-i386/i386.exp: Run pr19636-1j, pr19636-1k, pr19636-1l, pr19636-3h and pr19636-3i. * testsuite/ld-i386/pr19636-1j.d: New file. * testsuite/ld-i386/pr19636-1k.d: Likewise. * testsuite/ld-i386/pr19636-1l.d: Likewise. * testsuite/ld-i386/pr19636-3h.d: Likewise. * testsuite/ld-i386/pr19636-3i.d: Likewise. * testsuite/ld-x86-64/pr19636-1h.d: Likewise. * testsuite/ld-x86-64/pr19636-1i.d: Likewise. * testsuite/ld-x86-64/pr19636-1j.d: Likewise. * testsuite/ld-x86-64/pr19636-2j.d: Likewise. * testsuite/ld-x86-64/pr19636-2k.d: Likewise. * testsuite/ld-x86-64/pr19636-2l.d: Likewise. * testsuite/ld-x86-64/pr19636-2m.d: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr19636-1h, pr19636-1i, pr19636-1j, pr19636-2j, pr19636-2k, pr19636-2l and pr19636-2m.
2017-10-11ld internationalization fixesAlan Modra43-296/+369
* emultempl/aarch64elf.em: Wrap einfo strings in _(). Formatting. * emultempl/aix.em: Likewise. * emultempl/armcoff.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/avrelf.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/cr16elf.em: Likewise. * emultempl/elf-generic.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/genelf.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/m68kelf.em: Likewise. * emultempl/metagelf.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/mmix-elfnmmo.em: Likewise. * emultempl/mmo.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/nds32elf.em: Likewise. * emultempl/nios2elf.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc32elf.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/riscvelf.em: Likewise. * emultempl/s390.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/tic6xdsbt.em: Likewise. * emultempl/v850elf.em: Likewise. * emultempl/vms.em: Likewise. * emultempl/vxworks.em: Likewise. * ldcref.c: Likewise. * ldlang.c: Likewise. * ldlex.l: Likewise. * ldmain.c: Likewise. * pe-dll.c: Likewise. * plugin.c: Likewise.
2017-10-10[ARM] PR ld/21402, only override the symbol dynamic decision on undefined ↵Renlin Li4-15/+19
weak symbol. Similar as aarch64 backend, arm backend only overrides the decision on undefined weak symbols. arm backend part already emits necessary relative relocation for this case. bfd/ PR ld/21402 * elf32-arm.c (allocate_dynrelocs_for_symbol): Only make undefined weak symbols into dynamic. ld/ PR ld/21402 * testsuite/ld-arm/tls-app.d: Update address. * testsuite/ld-arm/tls-app.r: Remove relocations. * testsuite/ld-arm/unresolved-1-dyn.d: Update.
2017-10-10Correct ld/Makefile earmelfb_fuchsia dependenciesAlan Modra3-2/+7
There were two copies of earmelf_fuchsia.c dependencies. * Makefile.am (earmelfb_fuchsia.c): Rename rule from earmelf_fuchsia.c. * Makefile.in: Regenerate.
2017-10-09Fix link time warning message when running the srec linker tests.Nick Clifton2-1/+3
* testsuite/ld-srec/srec.exp (run_srec_test): Set start address.
generated by cgit v1.1 at 2024-12-23 19:04:05 +0000