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2024-09-24ld: support --build-id=xx modeFrank Ch. Eigler1-11/+11
The is patch adds a new ld build-id computation mode, "xx", using xxhash in its 128-bit mode. The patch prereqs the xxhash-devel headers being installed, and uses the "all-inlined" model, so no run-time or link-time library dependence exists. The xxhash mode performs well, saving roughly 20% of total userspace run time from an ld job over a 800MB shared library relative to sha1. 128 bits of good hash should be collision-resistant to a number of distinct binaries that numbers in the 2**32 - 2**64 range, even if not "crypto" level hash. Confirmations of this are in progress. ld/configury: add --with-xxhash mode, different from gdb case because only using it in inline mode ld/ldbuildid.c: add "xx" mode, #if WITH_XXHASH ld/NEWS, ld.texi: mention new option ld/lexsup.c: add enumeration of --build-id STYLES to --help ld/testsuite/ld-elf/build-id.exp: add test case for 0xHEX case and conditional for xx case; also, simply tcl list syntax https://inbox.sourceware.org/binutils/20240917201509.GB26396@redhat.com/ Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
2024-09-23LD: Document use of SOURCE_DATE_EPOCH in Environment sectionNick Clifton1-0/+7
2024-06-26Revert: 35fd2ddeb1d90f1750401cfb6d01fe055656b88dNick Clifton1-0/+19
PR 20814
2024-06-24ld: Improve the documentation describing the -o option.Nick Clifton1-0/+22
PR 31761
2024-06-14x86: Add -z isa-level-report=[none|all|needed|used]H.J. Lu1-0/+15
Add -z isa-level-report=[none|all|needed|used] to the x86 ELF linker to report needed and used x86-64 ISA levels. bfd/ PR ld/31868 * elf-linker-x86.h (elf_x86_isa_level_report): New. (elf_linker_x86_params): Add isa_level_report. * elfxx-x86.c (report_isa_level): New. (_bfd_x86_elf_link_setup_gnu_properties): Check -z isa-level-report=[none|all|needed|used] to report needed and used x86-64 ISA level. ld/ PR ld/31868 * NEWS: Mention -z isa-level-report=[none|all|needed|used]. * ld.texi: Document -z isa-level-report=[none|all|needed|used]. * emulparams/elf32_x86_64.sh: Source x86-64-level-report.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/x86-64-level-report.sh: New file. * testsuite/ld-i386/pr31868a.d: Likewise. * testsuite/ld-i386/pr31868b.d: Likewise. * testsuite/ld-i386/pr31868c.d: Likewise. * testsuite/ld-x86-64/pr31868a-x32.d: Likewise. * testsuite/ld-x86-64/pr31868a.d: Likewise. * testsuite/ld-x86-64/pr31868a.l: Likewise. * testsuite/ld-x86-64/pr31868a.s: Likewise. * testsuite/ld-x86-64/pr31868b-x32.d: Likewise. * testsuite/ld-x86-64/pr31868b.d: Likewise. * testsuite/ld-x86-64/pr31868b.l: Likewise. * testsuite/ld-x86-64/pr31868b.s: Likewise. * testsuite/ld-x86-64/pr31868c-x32.d: Likewise. * testsuite/ld-x86-64/pr31868c.d: Likewise. * testsuite/ld-x86-64/pr31868c.l: Likewise. * testsuite/ld-i386/i386.exp: Run PR ld/31868 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2024-06-13Add --rosegment option to BFD linker to stop the '-z separate-code' from ↵Nick Clifton1-0/+15
generating two read-only segments. PR 30907
2024-05-25ld: Document -pie -Ttext-segment=ORG generates ET_EXECH.J. Lu1-1/+4
This is the v2 patch I am checking in. H.J.
2024-05-21ld: silence makeinfo warningsJan Beulich1-2/+2
Older tool versions (4.12 in my case) demand . or , after @xref{}; arrange for this to be the case.
2024-05-10Add --section-ordering command line option to the bfd linker.Nick Clifton1-6/+66
2024-03-19Fix typo in previous patch to ld.texiNick Clifton1-1/+1
2024-03-18[PATCH] ld: Improve documentation of -rpath-link search pathsNick Clifton1-12/+18
2024-03-01PR19871, description of --pieAlan Modra1-6/+7
Say why we even mention shared libraries here (ET_DYN), and clarify symbol resolution. There are of course many other ways that PIEs resemble PDEs more closely than shared libraries. PR 19871 * ld.texi (-pie): Clarify.
2024-02-16ld: Add -plugin-save-tempsH.J. Lu1-0/+4
Add -plugin-save-temps to store plugin intermediate files permanently. It can be used to exam the final input object files generated from IR inputs. * NEWS: Mention -plugin-save-temps. * ld.h (ld_config_type): Add plugin_save_temps. * ld.texi: Document -plugin-save-temps. * ldlex.h (option_values): Add OPTION_PLUGIN_SAVE_TEMPS. * lexsup.c (ld_options): Add -plugin-save-temps. (parse_args): Handle OPTION_PLUGIN_SAVE_TEMPS. * plugin.c (plugin_call_cleanup): Don't call plugin cleanup_handler for -plugin-save-temps.
2024-01-04Update year range in copyright notice of binutils filesAlan Modra1-3/+3
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
2023-12-01ld: fix build with old makeinfoJan Beulich1-0/+1
Makeinfo 4.12 is unhappy about the new "Special Sections" without that also having a @chapter line.
2023-11-21Fix: symbols eliminated by --gc-sections still trigger warnings for ↵Nick Clifton1-6/+6
gnu.warning.SYM PR 31067 Fix typo in previous delta: defined -> referenced.
2023-11-21Fix: symbols eliminated by --gc-sections still trigger warnings for ↵Nick Clifton1-0/+45
gnu.warning.SYM PR 31067 * linker.c (_bfd_generic_link_add_one_symbol): When issuing a warning message, also display a message about the warning not being affected by garbage colleciton. * ld.texi (Special Sections): New entry in the linker manual. Describes how the .gnu.warning and .gnu.warning.SYM sections behave.
2023-11-13Fix redundant space typo in linker documentation.Chung-Ju Wu1-1/+1
2023-11-10Add ability to change linker warning messages into errors when reporting ↵Nick Clifton1-19/+56
executable stacks and/or executable segments. include * bfdlink.h (struct bfd_link_info): Update descriptions of the 'execstack', 'noexecstack' and 'warn_execstack' fields. Add 'error_exectack' and 'warn_is_error_for_rwx_segments' fields. bfd * elf.c (assign_file_positions_except_relocs): Turn warnings about executable segments into errors if so requested. * elflink.c (bfd_elf_size_dynamic_sections): Turn warnings about executable stacks into errors if so requested. ld * ldlex.h (enum option_values): Add OPTION_ERROR_EXECSTACK, OPTION_NO_ERROR_EXECSTACK, OPTION_WARN_EXECSTACK_OBJECTS, OPTION_ERROR_RWX_SEGMENTS and OPTION_NO_ERROR_RWX_SEGMENTS. (struct ld_option): Add new long options. (parse_args): Parse new long options. (elf_static_list_options): Display the new options. * ld.texi: Document the new command line options. * configure.ac (error-execstack): New configuration option. (error-rwx-segments): New configuration option. * emultempl/elf.em (_before_parse): Initialse the new linkinfo fields. * NEWS: Mention the new features. * config.in: Regenerate. * configure: Regenerate. * testsuite/ld-elf/commonpage2.d: Disable errors for RWX segments and/or executable stacks. * testsuite/ld-elf/elf.exp: Likewise. * testsuite/ld-elf/header.d: Likewise. * testsuite/ld-elf/loadaddr1.d: Likewise. * testsuite/ld-elf/loadaddr2.d: Likewise. * testsuite/ld-elf/maxpage4.d: Likewise. * testsuite/ld-elf/nobits-1.d: Likewise. * testsuite/ld-elf/note-1.d: Likewise. * testsuite/ld-elf/orphan-10.d: Likewise. * testsuite/ld-elf/orphan-11.d: Likewise. * testsuite/ld-elf/orphan-12.d: Likewise. * testsuite/ld-elf/orphan-5.d: Likewise. * testsuite/ld-elf/orphan-7.d: Likewise. * testsuite/ld-elf/orphan-8.d: Likewise. * testsuite/ld-elf/orphan-9.d: Likewise. * testsuite/ld-elf/orphan-region.d: Likewise. * testsuite/ld-elf/orphan.d: Likewise. * testsuite/ld-elf/pr19539.d: Likewise. * testsuite/ld-elf/pr26256-1a.d: Likewise. * testsuite/ld-elf/pr26907.d: Likewise. * testsuite/ld-elf/pr28597.d: Likewise. * testsuite/ld-elf/retain2.d: Likewise. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elf/size-1.d: Likewise. * testsuite/ld-elf/textaddr7.d: Likewise. * testsuite/ld-elf/warn1.d: Likewise. * testsuite/ld-elf/warn2.d: Likewise. * testsuite/ld-i386/discarded1.d: Likewise. * testsuite/ld-i386/pr19175.d: Likewise. * testsuite/ld-i386/pr19539.d: Likewise. * testsuite/ld-i386/pr23189.d: Likewise. * testsuite/ld-plugin/lto-3r.d: Likewise. * testsuite/ld-plugin/lto-5r.d: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-powerpc/ppc476-shared.d: Likewise. * testsuite/ld-powerpc/ppc476-shared2.d: Likewise. * testsuite/ld-powerpc/pr28827-2.d: Likewise. * testsuite/ld-s390/s390.exp: Likewise. * testsuite/ld-scripts/align2a.d: Likewise. * testsuite/ld-scripts/align2b.d: Likewise. * testsuite/ld-scripts/align5.d: Likewise. * testsuite/ld-scripts/alignof.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise. * testsuite/ld-scripts/defined2.d: Likewise. * testsuite/ld-scripts/defined3.d: Likewise. * testsuite/ld-scripts/defined5.d: Likewise. * testsuite/ld-scripts/pr14962.d: Likewise. * testsuite/ld-scripts/pr18963.d: Likewise. * testsuite/ld-scripts/pr20302.d: Likewise. * testsuite/ld-scripts/print-memory-usage.exp: Likewise. * testsuite/ld-scripts/rgn-at1.d: Likewise. * testsuite/ld-scripts/rgn-at10.d: Likewise. * testsuite/ld-scripts/rgn-at4.d: Likewise. * testsuite/ld-scripts/rgn-at6.d: Likewise. * testsuite/ld-scripts/rgn-at8.d: Likewise. * testsuite/ld-scripts/rgn-at9.d: Likewise. * testsuite/ld-scripts/rgn-over1.d: Likewise. * testsuite/ld-scripts/rgn-over2.d: Likewise. * testsuite/ld-scripts/rgn-over4.d: Likewise. * testsuite/ld-scripts/rgn-over5.d: Likewise. * testsuite/ld-scripts/rgn-over6.d: Likewise. * testsuite/ld-scripts/script.exp: Likewise. * testsuite/ld-scripts/sizeof.exp: Likewise. * testsuite/ld-scripts/sort-file.d: Likewise. * testsuite/ld-x86-64/discarded1.d: Likewise. * testsuite/ld-x86-64/pr19175.d: Likewise. * testsuite/ld-x86-64/pr19539a.d: Likewise. * testsuite/ld-x86-64/pr19539b.d: Likewise. * testsuite/ld-x86-64/pr23189.d: Likewise.
2023-11-08ld: print branch fixups into the map file for ppc elf targetsClément Chigot1-0/+11
In a safety context, it could interesting to track the trampolines being generated, ensuring there are expected or not. bfd/ChangeLog: * elf32-ppc.c (ppc_elf_relax_section): Log branch fixups. ld/ChangeLog: * ld.texi (--print-map): Add new item about fixups.
2023-11-06ld: =fillexp different behaviors for hexidecimal literalNick Clifton1-1/+39
PR 30865 * ld.texi: Update description of the FILL command. * testsuite/ld-scripts/fill2.d: New test. * testsuite/ld-scripts/fill2.t: New test source. * testsuite/ld-scripts/data.exp: Run the new test.
2023-11-01ld: Support input section description keyword: REVERSENick Clifton1-0/+38
PR 27565 * ldlex.l: Add REVERSE. * ldgram.y: Allow REVERSE to be used wherever a sorting command can be used. * ld.h (struct wildcard_spec): Add 'reversed' field. * ldlang.h (lang_wild_statement_struct): Add 'filenames_reversed' field. * ldlang.c (compare_sections): Add reversed parameter. (wild_sort): Reverse the comparison if requested. (print_wild_statement): Handle the reversed field. * ld.texi: Document the new feature. * NEWS: Mention the new feature. * testsuite/ld-scripts/sort-file-reversed-1.d: New test driver. * testsuite/ld-scripts/sort-file-reversed-1.t: New test source. * testsuite/ld-scripts/sort-file-reversed-2.t: New test source. * testsuite/ld-scripts/sort-file-reversed-2.d: New test driver. * testsuite/ld-scripts/sort-sections-reversed-1.d: New test driver. * testsuite/ld-scripts/sort-sections-reversed-1.t: New test source. * testsuite/ld-scripts/sort-sections-reversed-2.t: New test source. * testsuite/ld-scripts/sort-sections-reversed-2.d: New test driver. * testsuite/ld-scripts/sort-sections-reversed-3.d: New test driver. * testsuite/ld-scripts/sort-sections-reversed-3.t: New test source.
2023-10-19ld: fix typo in ld.texi metdata->metadataJose E. Marchesi1-1/+1
2023-10-17Update the documentation of the LINKER_VERSIOn script command to actually ↵Nick Clifton1-4/+4
mention the name of the command.
2023-09-29x86-64: Add -z mark-plt and -z nomark-pltH.J. Lu1-0/+11
The PLT entry in executables and shared libraries contains an indirect branch, like jmp *foo@GOTPCREL(%rip) push $index_foo jmp .PLT0 or endbr64 jmp *foo@GOTPCREL(%rip) NOP padding which is used to branch to the function, foo, defined in another object. Each R_X86_64_JUMP_SLOT relocation has a corresponding PLT entry. The dynamic tags have been added to the x86-64 psABI to mark such PLT entries: https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/6d824a52a42d173eb838b879616c1be5870b593e Add an x86-64 linker option, -z mark-plt, to mark PLT entries with #define DT_X86_64_PLT (DT_LOPROC + 0) #define DT_X86_64_PLTSZ (DT_LOPROC + 1) #define DT_X86_64_PLTENT (DT_LOPROC + 3) 1. DT_X86_64_PLT: The address of the procedure linkage table. 2. DT_X86_64_PLTSZ: The total size, in bytes, of the procedure linkage table. 3. DT_X86_64_PLTENT: The size, in bytes, of a procedure linkage table entry. and set the r_addend field of the R_X86_64_JUMP_SLOT relocation to the memory offset of the indirect branch instruction. The dynamic linker can use these tags to update the PLT section to direct branch. bfd/ * elf-linker-x86.h (elf_linker_x86_params): Add mark_plt. * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Set the r_addend of R_X86_64_JUMP_SLOT to the indirect branch offset in PLT entry for -z mark-plt. * elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Add DT_X86_64_PLT, DT_X86_64_PLTSZ and DT_X86_64_PLTENT for -z mark-plt. (_bfd_x86_elf_finish_dynamic_sections): Set DT_X86_64_PLT, DT_X86_64_PLTSZ and DT_X86_64_PLTENT. (_bfd_x86_elf_get_synthetic_symtab): Ignore addend for JUMP_SLOT relocation. (_bfd_x86_elf_link_setup_gnu_properties): Set plt_indirect_branch_offset. * elfxx-x86.h (elf_x86_plt_layout): Add plt_indirect_branch_offset. binutils/ * readelf.c (get_x86_64_dynamic_type): New function. (get_dynamic_type): Call get_x86_64_dynamic_type. include/ * elf/x86-64.h (DT_X86_64_PLT): New. (DT_X86_64_PLTSZ): Likewise. (DT_X86_64_PLTENT): Likewise. ld/ * ld.texi: Document -z mark-plt and -z nomark-plt. * emulparams/elf32_x86_64.sh: Source x86-64-plt.sh. * emulparams/elf_x86_64.sh: Likewise. * emulparams/x86-64-plt.sh: New file. * testsuite/ld-x86-64/mark-plt-1.s: Likewise. * testsuite/ld-x86-64/mark-plt-1a-x32.d: Likewise. * testsuite/ld-x86-64/mark-plt-1a.d: Likewise. * testsuite/ld-x86-64/mark-plt-1b-x32.d: Likewise. * testsuite/ld-x86-64/mark-plt-1b.d: Likewise. * testsuite/ld-x86-64/mark-plt-1c-x32.d: Likewise. * testsuite/ld-x86-64/mark-plt-1c.d: Likewise. * testsuite/ld-x86-64/mark-plt-1d-x32.d: Likewise. * testsuite/ld-x86-64/mark-plt-1d.d: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run -z mark-plt tests.
2023-08-02Revert "2.41 Release sources"Sam James1-23/+39
This reverts commit 675b9d612cc59446e84e2c6d89b45500cb603a8d. See https://sourceware.org/pipermail/binutils/2023-August/128761.html.
2023-08-022.41 Release sourcesbinutils-2_41-releaseNick Clifton1-39/+23
2023-07-24objcopy embeds the current time and ignores SOURCE_DATE_EPOCH making the ↵Johannes Schauer Marin Rodrigues1-0/+5
output unreproducible. bfd * peXXigen.c (_bfd_XXi_only_swap_filehdr_out): If inserting a timestamp, use the value held in the SOURCE_DATE_EPOCH environment variable, if it is defined. binutils * doc/binutils.texi (objcopy): Document change in behaviour of objcopy's --preserve-dates command line option. ld * pe-dll.c (fill_edata): If inserting a timestamp, use the value held in the SOURCE_DATE_EPOCH environment variable, if it is defined. * ld.texi (--insert-timestamp): Document change in behaviour.
2023-07-17Also support '^=' in linker script expressionsMichael Matz1-2/+2
this requires also changes in ldgram.y and ldexp.c, unlike accepting '^' only. But let's do this anyway, if only for symmetry.
2023-07-17Support NEXT_SECTION in ALIGNOF and SIZEOFAlan Modra1-7/+14
This patch is aimed at making __bss_start properly aligned with the first of any bss-style sections following. Most of the work here involves keeping track of the last output section seen when processing the linker script. You can almost align __bss_start properly by using ${RELOCATING+. = ALIGN(${DATA_SDATA-${NO_SMALL_DATA-ALIGNOF(.${SBSS_NAME}) != 0 ? ALIGNOF(.${SBSS_NAME}) : }}${BSS_PLT+ALIGNOF(.plt) != 0 ? ALIGNOF(.plt) : }ALIGNOF(.${BSS_NAME}));} and changing every place that defines NO_SMALL_DATA to use " ", but having two .plt sections (marked SPECIAL) on some backends foils that idea. The problem is that you only want to pick up the following .plt, not the one preceeding __bss_start in the data segment if the backend decides that is the proper .plt section. Perhaps that could be fixed too, but I decided instead to extend the linker script a little. THIS_SECTION and PREV_SECTION could easily be added too. * ld.texi (ALIGNOF, SIZEOF): Update and mention NEXT_SECTION. * ldexp.c (output_section_find): New function. (fold_name <ALIGNOF, SIZEOF>): Use output_section_find. (exp_fold_tree): Add os parameter. Adjust all calls. (exp_fold_tree_no_dot, exp_get_vma, exp_get_power): Likewise. * ldexp.h (struct ldexp_control): Add last_os. (exp_fold_tree, exp_fold_tree_no_dot): Update prototypes. (exp_get_vma, exp_get_power): Likewise. * ldlang.c: Pass last output section to expression folder calls throughout file. (open_input_bfds): Add os parameter to track last os seen. (lang_size_sections_1): Rename output_section_statement param to current_os. Track last os. (lang_do_assignments_1): Track last os. * scripttempl/arclinux.sc: Align to ALIGNOF NEXT_SECTION before defining __bss_start. * scripttempl/elf.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.od: Update expected __bss_start. * testsuite/ld-x86-64/pe-x86-64-5.rd: Likewise.
2023-07-15Re: Let '^' through the lexerTobias Burnus1-1/+1
Fix "make pdf".
2023-07-13Let '^' through the lexerMichael Matz1-16/+20
so that the (existing) code in parser and expression evaluator actually get to see it and handle it as XOR. Also adjust docu to match what's there.
2023-06-29ELF: Strip section header in ELF objectsKaylee Blake1-0/+5
Section header isn't mandatory on ELF executable nor shared library. This patch adds a new linker option, -z nosectionheader, to omit ELF section header, a new objcopy and strip option, --strip-section-headers, to remove ELF section headers. bfd/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> Kaylee Blake <klkblake@gmail.com> PR ld/25617 * bfd.c (BFD_NO_SECTION_HEADER): New. (BFD_FLAGS_SAVED): Add BFD_NO_SECTION_HEADER. (BFD_FLAGS_FOR_BFD_USE_MASK): Likewise. * elfcode.h (elf_swap_ehdr_out): Omit section header with BFD_NO_SECTION_HEADER. (elf_write_shdrs_and_ehdr): Likewise. * elfxx-target.h (TARGET_BIG_SYM): Add BFD_NO_SECTION_HEADER to object_flags. (TARGET_LITTLE_SYM): Likewise. * bfd-in2.h: Regenerated. binutils/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> PR ld/25617 * NEWS: Mention --strip-section-headers for objcopy and strip. * objcopy.c (strip_section_headers): New. (command_line_switch): Add OPTION_STRIP_SECTION_HEADERS. (strip_options): Add --strip-section-headers. (copy_options): Likewise. (copy_usage): Add --strip-section-headers. (strip_usage): Likewise. (copy_object): Handle --strip-section-headers for ELF files. (strip_main): Handle OPTION_STRIP_SECTION_HEADERS. (copy_main): Likewise. * doc/binutils.texi: Document --strip-section-headers for objcopy and strip. ld/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> Kaylee Blake <klkblake@gmail.com> PR ld/25617 * NEWS: Mention -z nosectionheader. * emultempl/elf.em: Support -z sectionheader and -z nosectionheader. * ld.h (ld_config_type): Add no_section_header. * ld.texi: Document -z sectionheader and -z nosectionheader. * ldlang.c (ldlang_open_output): Handle config.no_section_header. * lexsup.c (parse_args): Enable --strip-all with -z nosectionheader. Disallow -r with -z nosectionheader. (elf_static_list_options): Add -z sectionheader and -z nosectionheader.
2023-06-14Add --remap-inputs option to the BFD linker.Nick Clifton1-0/+60
PR 30374 * ldfile.c (struct input_remap): New structure. (ldfile_add_remap): New function. (ldfile_remap_input_free): New function. (ldfile_add_remap_file): New function. (ldfile_possibly_remap_input): New function. (ldfile_print_input_remaps): New function. * ldfile.h: Add prototypes for new functions. * ldlang.c (new_afile): Call ldfile_possibly_remap_input. (lang_finish): Call ldfile_remap_input_free. (lang_map): Call ldfile_print_input_remaps. * ldlex.h (OPTION_REMAP_INPUTS, OPTION_REMAP_INPUTS_FILE): Define. * lexsup.c (ld_options): Add --remap-inputs-file and --remap-inputs. (parse_args): Handle new options. * NEWS: Mention the new feature. * ld.texi: Document the new options. * testsuite/ld-misc/input-remap.exp: New test driver. * testsuite/ld-misc/remaps.r: New file: Expected linker output. * testsuite/ld-misc/remaps.txt: New file. Input remaps file.
2023-05-30Slight wording improvement for the -Ur documentationNick Clifton1-4/+5
2023-05-19ld: drop stray blank from ld.texiJan Beulich1-1/+1
At least older makeinfo complains about it. Also fix an apparent typo while touching that line.
2023-05-16Document how to use the linker to create a resource only DLL.Nick Clifton1-0/+33
PR 30359 * ld.texi (WIN32): Document how to create a resource only DLL.
2023-05-16-Ur option documentationNick Clifton1-8/+12
* ld.texi (-Ur): Clarify the actions of this option.
2023-05-13PR28902, -T script with INSERT orderingAlan Modra1-1/+8
The answer to PR28902 may be deduced from the existing INSERT documentation that says the default script is parsed after the -T INSERT script, if you assume (correctly) that nothing special is done when inserting into -T scripts overriding the default script. In both cases INSERT handling looks for the specified output section later on the internal list of parsed script commands. This isn't obvious though, so make the ordering explicit, and mention that section assignments are the same too. PR 28902 * ld.texi (INSERT): Specify ordering when -T is used both to override the default script and to augment.
2023-05-10Add linker option to include local symbols in the linker map.Nick Clifton1-0/+10
PR 16566 * ldlang.c (ld_is_local_symbol): New function. (print_input_section): Add code to display local symbols in the section. * ldlex.h (enum option_values): Add OPTION_PRINT_MAP_LOCALS and OPTION_PRINT_MAP_LOCALS. * lexsup.c (ld_options[]): Add entries for --print-map-locals and --no-print-map-locals. * NEWS: Mention the new feature. * ld.h (struct ld_config_type): Add print_map_locals field. * ld.texi: Document the new command line option. * testsuite/ld-scripts/sizeof.s: Add a local symbol. * testsuite/ld-scripts/map-locals.d: New test control file. * testsuite/ld-scripts/map-address.exp: Run the new test.
2023-04-21ld: add missing period after @xrefJan Beulich1-1/+1
At least older versions of one of the doc generation tools complain (warn) about it missing.
2023-04-12Fix typos in the linker's documentation of the ↵Nick Clifton1-3/+3
--enable-non-contiguous-regions option.
2023-03-29Fix typo in ld manual --enable-non-contiguous-regions exampleRoland McGrath1-1/+1
2023-03-15Add --enable-linker-version option to bfd linker to add an entry in the ↵Nick Clifton1-1/+29
.comment section. PR 30187 * NEWS: Mention the new feature. * ld.texi: Document the new feature. * ldgram.y: Handle LINKER_VERSION token. * ldlang.c (lang_add_version): New function. (enable_linker_version): New global variable. * ldlang.h (land_add_version): Prototype. (enable_linker_version): Export. * ldlex.h (OPTION_ENABLE_LINKER_VERSION): Define. (OPTION_DISABLE_LINKER_VERSION): Define. * ldlex.l (LINKER_VERSION): Add token. * lexsup.c (ld_options): Add --enable-linker-version and --disable-linker-version. (parse_args): Handle the new options. * scripttempl/arclinux.sc: Remove stabs and comment sections and replace with inclusion of misc-sections.sc * scripttempl/avr.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.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/elfd30v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/ft32.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * testsuite/ld-scripts/script.exp: Run new tests. * scripttempl/misc-sections.sc: New file. * testsuite/ld-scripts/ld-version-2.d: New file. * testsuite/ld-scripts/ld-version.d: New file. * testsuite/ld-scripts/ld-version.t: New file.
2023-03-10Revert ld ASCII supportAlan Modra1-40/+13
Revert "Prevent the ASCII linker script directive from generating huge amounts of padding if the size expression is not a constant." This reverts commit adbe951fc95943016325af08d677f18e8c177ac1. Revert "ld test asciz and ascii fails" This reverts the ascii.d part of commit 5f497256bee624f0fa470949aa41534093bc5b25. Revert "Add support for the ASCII directive inside linker scripts." This mostly reverts commit 9fe129a4105bb59398f73ce96938a94f19265b79 leaving the asciz.d and asciz.t changes in place.
2023-03-10Revert ld DIGEST supportAlan Modra1-494/+4
This is a hopefully temporary reversion of new ld features for embedded processors by Ulf Samuelsson, plus some followup patches. Squashed together from the following: Revert "lddigest 32-bit support and gcc-4 compile errors" This reverts commit d7ee19be87110a8f5342cec6e323d83d01c641d1. Revert "ld: Use correct types for crc64 calculations" This reverts commit 9a534b9f8e3d0f3cdb5a20f19ff165693fbb84d2. Revert "Re: DIGEST: testsuite" This reverts commit c8e85484d8a0fe9f7b88e00a6b9ae63bcb53ba32. Revert "Regen potfiles" This reverts commit 4d98c966f8bf305ab25badd34cb295631873cf7c. Revert "DIGEST: Makefile.*" This reverts commit 78ef6ab03f56ce83a606d974bb8a9f34b5d6e0b7. Revert "DIGEST: calculation" This reverts commit 5243990191e683d5066d3dd622c76deaba0bf15c. Revert "DIGEST: ldlang.*: add timestamp" This reverts commit bd9466d4aa277a469a9d8b12f0a6e6fa51678e36. Revert "DIGEST: ldmain.c" This reverts commit c8f8653fa7eeb3dc0769ac23039eadb5c5f09dff. Revert "DIGEST: ldgram.y" This reverts commit d73c01be2669e9c5267fab669a269f95a32048c9. Revert "DIGEST: ldlex.l" This reverts commit 48b5163a9dd5759cc87171331bbd6e902c547b5a. Revert "DIGEST: testsuite" This reverts commit a4135d1a4886400ea29af2da782dd8dd40ccad23. Revert "DIGEST: Documentation" This reverts commit 3ec28966c3e4c63704212778f96c517cbf2e0090. Revert "DIGEST: NEWS" This reverts commit 099bf2927d446424e8585a60cf4ce63209999aa2. Revert "DIGEST: LICENSING" This reverts commit 5c8a0c6654fb55926985edf3b360b62d4f20691d.
2023-03-09lddigest 32-bit support and gcc-4 compile errorsAlan Modra1-4/+0
* ld.texi: Revert 2023-03-08 commit 9a534b9f8e3d. * testsuite/ld-scripts/crc64-poly.d: Likewise. * testsuite/ld-scripts/crc64-poly.t: Likewise. * lddigest.c: Formatting. (get_uint64_t): New function. (lang_add_digest): Take etree_type* args. Replace "illegal" with "invalid" in error message. * lddigest.h (lang_add_digest): Update prototype. * lddigest_tab.c (algorithms): Work around gcc-4 errors. * ldgram.y (polynome): Adjust lang_add_digest call. * testsuite/ld-scripts/crc64-poly-size.d: Update expected error.
2023-03-08ld: Use correct types for crc64 calculationsNick Clifton1-0/+4
2023-03-07DIGEST: DocumentationUlf Samuelsson1-4/+494
Signed-off-by: Ulf Samuelsson <ulf@emagii.com>
2023-03-01Fix typo with my email addressNick Clifton1-1/+1
generated by cgit v1.1 at 2024-10-14 21:13:31 +0000