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2021-05-13ld: Add -Bno-symbolicFangrui Song1-0/+2
PR 27834 * ldlex.h (enum option_values): Add OPTION_NO_SYMBOLIC. * lexsup.c (ld_options): Add -Bno-symbolic. (parse_args): Handle -Bno-symbolic. * ld.texi: Document -Bno-symbolic. * NEWS: Mention -Bno-symbolic. * testsuite/ld-elf/shared.exp: Add a test.
2021-03-01PR27451, -z start_stop_gcAlan Modra1-0/+3
When --gc-sections is in effect, a reference from a retained section to __start_SECNAME or __stop_SECNAME causes all input sections named SECNAME to also be retained, if SECNAME is representable as a C identifier and either __start_SECNAME or __stop_SECNAME is synthesized by the linker. Add an option to disable that feature, effectively ignoring any relocation that references a synthesized linker defined __start_ or __stop_ symbol. PR 27451 include/ * bfdlink.h (struct bfd_link_info): Add start_stop_gc. bfd/ * elflink.c (_bfd_elf_gc_mark_rsec): Ignore synthesized linker defined start/stop symbols when start_stop_gc. (bfd_elf_gc_mark_dynamic_ref_symbol): Likewise. (bfd_elf_define_start_stop): Don't modify ldscript_def syms. * linker.c (bfd_generic_define_start_stop): Likewise. ld/ * emultempl/elf.em: Handle -z start-stop-gc and -z nostart-stop-gc. * lexsup.c (elf_static_list_options): Display help for them. Move help for -z stack-size to here from elf_shlib_list_options. Add help for -z start-stop-visibility and -z undefs. * ld.texi: Document -z start-stop-gc and -z nostart-stop-gc. * NEWS: Mention -z start-stop-gc. * testsuite/ld-gc/start2.s, * testsuite/ld-gc/start2.d: New test. * testsuite/ld-gc/gc.exp: Run it.
2021-02-11Re: Remove arm-symbianelfAlan Modra1-0/+2
gas/ * NEWS: Mention arm-symbianelf removal. ld/ * NEWS: Mention arm-symbianelf removal.
2021-01-15ld/x86: Add -z report-relative-relocH.J. Lu1-0/+3
Linker generated relative relocations don't have symbol info: [hjl@gnu-cfl-2 tmpdir]$ readelf -rW dump Relocation section '.rela.dyn' at offset 0x180 contains 2 entries: Offset Info Type Sym. Value Symbol's Name + Addend 00002f70 00000008 R_X86_64_RELATIVE 1000 00002f68 00000025 R_X86_64_IRELATIVE 1007 [hjl@gnu-cfl-2 tmpdir]$ Add -z report-relative-reloc to x86 ELF linker to report dynamic relative relocations: [hjl@gnu-cfl-2 tmpdir]$ ../ld-new -pie -melf32_x86_64 -z report-relative-reloc -o dump report-reloc-1.o dump: R_X86_64_IRELATIVE (offset: 0x00002f68, info: 0x00000025, addend: 0x00001007) against 'ifunc' for section '.data.rel.ro.local' in report-reloc-1.o dump: R_X86_64_RELATIVE (offset: 0x00002f70, info: 0x00000008, addend: 0x00001000) against '_start' for section '.data.rel.ro.local' in report-reloc-1.o [hjl@gnu-cfl-2 tmpdir]$ It can be used to map relative relocations to corresponding symbols. bfd/ * elf-linker-x86.h (elf_linker_x86_params): Add report_relative_reloc. * elf32-i386.c (elf_i386_relocate_section): Call _bfd_x86_elf_link_report_relative_reloc to report relative relocations for -z report-relative-reloc. (elf_i386_finish_dynamic_symbol): Likewse. * elf64-x86-64.c (elf_x86_64_relocate_section): Likewse. (elf_x86_64_finish_dynamic_symbol): Likewse. * elfxx-x86.c (_bfd_x86_elf_link_report_relative_reloc): New function. * elfxx-x86.h (_bfd_x86_elf_link_report_relative_reloc): New prototype. ld/ * NEWS: Mention -z report-relative-reloc. * ld.texi: Document -z report-relative-reloc. * emulparams/elf32_x86_64.sh: Source x86-report-relative.sh. * emulparams/elf_i386.sh: Likewse. * emulparams/elf_x86_64.sh: Likewse. * emulparams/x86-report-relative.sh: New file. * testsuite/ld-i386/report-reloc-1.d: Likewse. * testsuite/ld-i386/report-reloc-1.l: Likewse. * testsuite/ld-i386/report-reloc-1.s: Likewse. * testsuite/ld-x86-64/report-reloc-1-x32.d: Likewse. * testsuite/ld-x86-64/report-reloc-1.d: Likewse. * testsuite/ld-x86-64/report-reloc-1.l: Likewse. * testsuite/ld-x86-64/report-reloc-1.s: Likewse. * testsuite/ld-i386/i386.exp: Run report-reloc-1. * testsuite/ld-x86-64/x86-64.exp: Run report-reloc-1 and report-reloc-1-x32.
2021-01-09Add Changelog entries and NEWS entries for 2.36 branchNick Clifton1-0/+2
2021-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2020-12-23x86-64: Add Intel LAM property supportH.J. Lu1-0/+13
Add Intel Linear Address Masking (LAM) property support. LAM modifies the checking that is applied to 64-bit linear addresses, allowing software to use of the untranslated address bits for metadata. bfd/ * elf-linker-x86.h (elf_x86_cet_report): Renamed to ... (elf_x86_prop_report): This. (elf_linker_x86_params): Add lam_u48, lam_u57, lam_u48_report and lam_u57_report. * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Support GNU_PROPERTY_X86_FEATURE_1_LAM_U48 and GNU_PROPERTY_X86_FEATURE_1_LAM_U57. (_bfd_x86_elf_link_fixup_gnu_properties): Keep LAM features only for 64-bit output. binutils/ * NEWS: Mention LAM_U48 and LAM_U57 support. * elfedit.c (elf_x86_feature): Support lam_u48 and lam_u57. (usage): Add lam_u48 and lam_u57. * readelf.c (decode_x86_feature_1): Support LAM_U48 and LAM_U57. * doc/binutils.texi: Update elfedit with lam_u48 and lam_u57 support. * testsuite/binutils-all/x86-64/lam-u48.d: New file. * testsuite/binutils-all/x86-64/lam-u48.s: Likewise. * testsuite/binutils-all/x86-64/lam-u57.d: Likewise. * testsuite/binutils-all/x86-64/lam-u57.s: Likewise. include/ * elf/common.h (GNU_PROPERTY_X86_FEATURE_1_LAM_U48): New. (GNU_PROPERTY_X86_FEATURE_1_LAM_U57): Likewise. ld/ * NEWS: Mention LAM_U48 and LAM_U57 support. * ld.texi: Document LAM_U48 and LAM_U57 support. * emulparams/cet.sh: Updated. * emulparams/elf_x86_64.sh: Source x86-64-lam.sh. * emulparams/x86-64-lam.sh: New file. * testsuite/ld-x86-64/property-x86-lam-u48-1a.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-1b.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-2.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-3a.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-3b.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-4.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48-5.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u48.s: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-1a.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-1b.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-2.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-3a.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-3b.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-4.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57-5.d: Likewise. * testsuite/ld-x86-64/property-x86-lam-u57.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run LAM tests.
2020-12-14Add a plugin for processing static library dependencies.Howard Chu1-0/+3
* libdep_plugin.c: New file: Processes archives that contain a special library dependencies element. * Makefile.am: Add build rules for libdep_plugin. * Makefile.in: Regenerate. * NEWS: Mention the new plugin. * ld.texi: Document the new plugin.
2020-11-18Support SHF_GNU_RETAIN ELF section flagJozef Lawrynowicz1-0/+4
The SHF_GNU_RETAIN section flag is an extension to the GNU ELF OSABI. It is defined as follows: ========================================================= Section Attribute Flags +-------------------------------------+ | Name | Value | +-------------------------------------+ | SHF_GNU_RETAIN | 0x200000 (1 << 21) | +-------------------------------------+ SHF_GNU_RETAIN The link editor should not garbage collect the section. ========================================================= The .section directive accepts the "R" flag, which indicates SHF_GNU_RETAIN should be applied to the section. There is not a direct mapping of SHF_GNU_RETAIN to the BFD section flag SEC_KEEP. Keeping these flags distinct allows SHF_GNU_RETAIN sections to be explicitly removed by placing them in /DISCARD/. bfd/ChangeLog: * elf-bfd.h (enum elf_gnu_osabi): Add elf_gnu_osabi_retain. (struct elf_obj_tdata): Increase has_gnu_osabi to 4 bits. * elf.c (_bfd_elf_make_section_from_shdr): Set elf_gnu_osabi_retain for SHF_GNU_RETAIN. (_bfd_elf_final_write_processing): Report if SHF_GNU_RETAIN is not supported by the OSABI. Adjust error messages. * elflink.c (elf_link_input_bfd): Copy enabled has_gnu_osabi bits from input BFD to output BFD. (bfd_elf_gc_sections): gc_mark the section if SHF_GNU_RETAIN is set. binutils/ChangeLog: * NEWS: Announce SHF_GNU_RETAIN support. * readelf.c (get_elf_section_flags): Handle SHF_GNU_RETAIN. Recognize SHF_GNU_RETAIN and SHF_GNU_MBIND only for supported OSABIs. * testsuite/binutils-all/readelf.exp: Run new tests. Don't run run_dump_test when there isn't an assembler available. * testsuite/lib/binutils-common.exp (supports_gnu_osabi): Adjust comment. * testsuite/binutils-all/readelf-maskos-1a.d: New test. * testsuite/binutils-all/readelf-maskos-1b.d: New test. * testsuite/binutils-all/readelf-maskos.s: New test. * testsuite/binutils-all/retain1.s: New test. * testsuite/binutils-all/retain1a.d: New test. * testsuite/binutils-all/retain1b.d: New test. gas/ChangeLog: * NEWS: Announce SHF_GNU_RETAIN support. * config/obj-elf.c (obj_elf_change_section): Merge SHF_GNU_RETAIN bit between section declarations. (obj_elf_parse_section_letters): Handle 'R' flag. Handle numeric flag values within the SHF_MASKOS range. (obj_elf_section): Validate SHF_GNU_RETAIN usage. * doc/as.texi: Document 'R' flag to .section directive. * testsuite/gas/elf/elf.exp: Run new tests. * testsuite/gas/elf/section10.d: Unset SHF_GNU_RETAIN bit. * testsuite/gas/elf/section10.s: Likewise. * testsuite/gas/elf/section22.d: New test. * testsuite/gas/elf/section22.s: New test. * testsuite/gas/elf/section23.s: New test. * testsuite/gas/elf/section23a.d: New test. * testsuite/gas/elf/section23b.d: New test. * testsuite/gas/elf/section23b.err: New test. * testsuite/gas/elf/section24.l: New test. * testsuite/gas/elf/section24.s: New test. * testsuite/gas/elf/section24a.d: New test. * testsuite/gas/elf/section24b.d: New test. include/ChangeLog: * elf/common.h (SHF_GNU_RETAIN): Define. ld/ChangeLog: * NEWS: Announce support for SHF_GNU_RETAIN. * ld.texi (garbage collection): Document SHF_GNU_RETAIN. (Output Section Discarding): Likewise. * testsuite/ld-elf/elf.exp: Run new tests. * testsuite/ld-elf/retain1.s: New test. * testsuite/ld-elf/retain1a.d: New test. * testsuite/ld-elf/retain1b.d: New test. * testsuite/ld-elf/retain2.d: New test. * testsuite/ld-elf/retain2.ld: New test. * testsuite/ld-elf/retain2.map: New test. * testsuite/ld-elf/retain3.d: New test. * testsuite/ld-elf/retain3.s: New test. * testsuite/ld-elf/retain4.d: New test. * testsuite/ld-elf/retain4.s: New test. * testsuite/ld-elf/retain5.d: New test. * testsuite/ld-elf/retain5.map: New test. * testsuite/ld-elf/retain5lib.s: New test. * testsuite/ld-elf/retain5main.s: New test. * testsuite/ld-elf/retain6a.d: New test. * testsuite/ld-elf/retain6b.d: New test. * testsuite/ld-elf/retain6lib.s: New test. * testsuite/ld-elf/retain6main.s: New test.
2020-10-30x86: Support GNU_PROPERTY_X86_ISA_1_BASELINE markerH.J. Lu1-2/+2
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA levels: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250 X86 ISA markers are updated: https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13 GNU_PROPERTY_X86_ISA_1_BASELINE is added and GNU_PROPERTY_X86_ISA_1_V[234] are updated: #define GNU_PROPERTY_X86_ISA_1_BASELINE (1U << 0) #define GNU_PROPERTY_X86_ISA_1_V2 (1U << 1) #define GNU_PROPERTY_X86_ISA_1_V3 (1U << 2) #define GNU_PROPERTY_X86_ISA_1_V4 (1U << 3) Add -z x86-64-baseline linker command line option to mark x86-64-baseline ISA level as needed. bfd/ PR gas/26703 * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Generate GNU_PROPERTY_X86_ISA_1_BASELINE for -z x86-64-baseline. binutils/ PR gas/26703 * readelf.c (decode_x86_isa): Handle * GNU_PROPERTY_X86_ISA_1_BASELINE. * testsuite/binutils-all/i386/empty.d: Updated. * testsuite/binutils-all/i386/ibt.d: Likewise. * testsuite/binutils-all/i386/pr21231a.d: Likewise. * testsuite/binutils-all/i386/pr21231b.d: Likewise. * testsuite/binutils-all/i386/shstk.d: Likewise. * testsuite/binutils-all/x86-64/empty-x32.d: Likewise. * testsuite/binutils-all/x86-64/empty.d: Likewise. * testsuite/binutils-all/x86-64/ibt-x32.d: Likewise. * testsuite/binutils-all/x86-64/ibt.d: Likewise. * testsuite/binutils-all/x86-64/pr21231a.d: Likewise. * testsuite/binutils-all/x86-64/pr21231b.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e.d: Likewise. * testsuite/binutils-all/x86-64/shstk-x32.d: Likewise. * testsuite/binutils-all/x86-64/shstk.d: Likewise. gas/ PR gas/26703 * config/tc-i386.c (output_insn): Update for GNU_PROPERTY_X86_ISA_1_BASELINE. * testsuite/gas/i386/property-1.d: Updated. * testsuite/gas/i386/property-2.d: Likewise. * testsuite/gas/i386/property-3.d: Likewise. * testsuite/gas/i386/property-4.d: Likewise. * testsuite/gas/i386/property-5.d: Likewise. * testsuite/gas/i386/property-6.d: Likewise. * testsuite/gas/i386/property-11.d: Likewise. * testsuite/gas/i386/property-12.d: Likewise. * testsuite/gas/i386/x86-64-property-1.d: Likewise. * testsuite/gas/i386/x86-64-property-2.d: Likewise. * testsuite/gas/i386/x86-64-property-3.d: Likewise. * testsuite/gas/i386/x86-64-property-4.d: Likewise. * testsuite/gas/i386/x86-64-property-5.d: Likewise. * testsuite/gas/i386/x86-64-property-6.d: Likewise. * testsuite/gas/i386/x86-64-property-11.d: Likewise. * testsuite/gas/i386/x86-64-property-12.d: Likewise. include/ PR gas/26703 * elf/common.h (GNU_PROPERTY_X86_ISA_1_BASELINE): New. (GNU_PROPERTY_X86_ISA_1_V2): Uppdated. (GNU_PROPERTY_X86_ISA_1_V3): Likewise. (GNU_PROPERTY_X86_ISA_1_V4): Likewise. ld/ PR gas/26703 * NEWS: Mention -z x86-64-baseline. * ld.texi: Document -z x86-64-baseline. * emulparams/x86-64-level.sh: Handle -z x86-64-baseline. * testsuite/ld-elf/x86-feature-1a.rd: Update. * testsuite/ld-elf/x86-feature-1b.rd: Likewise. * testsuite/ld-elf/x86-feature-1c.rd: Likewise. * testsuite/ld-elf/x86-feature-1d.rd: Likewise. * testsuite/ld-elf/x86-feature-1e.rd: Likewise. * testsuite/ld-i386/pr23372c.d: Likewise. * testsuite/ld-i386/pr23486c.d: Likewise. * testsuite/ld-i386/pr23486d.d: Likewise. * testsuite/ld-i386/pr24322a.d: Likewise. * testsuite/ld-i386/pr24322b.d: Likewise. * testsuite/ld-i386/property-1a.r: Likewise. * testsuite/ld-i386/property-2a.r: Likewise. * testsuite/ld-i386/property-3.r: Likewise. * testsuite/ld-i386/property-3a.r: Likewise. * testsuite/ld-i386/property-4.r: Likewise. * testsuite/ld-i386/property-4a.r: Likewise. * testsuite/ld-i386/property-5.r: Likewise. * testsuite/ld-i386/property-5a.r: Likewise. * testsuite/ld-i386/property-7a.r: Likewise. * testsuite/ld-i386/property-x86-3.d: Likewise. * testsuite/ld-i386/property-x86-4a.d: Likewise. * testsuite/ld-i386/property-x86-5.d: Likewise. * testsuite/ld-i386/property-x86-cet1.d: Likewise. * testsuite/ld-i386/property-x86-cet2a.d: Likewise. * testsuite/ld-i386/property-x86-cet5a.d: Likewise. * testsuite/ld-i386/property-x86-cet5b.d: Likewise. * testsuite/ld-i386/property-x86-ibt1a.d: Likewise. * testsuite/ld-i386/property-x86-ibt1b.d: Likewise. * testsuite/ld-i386/property-x86-ibt2.d: Likewise. * testsuite/ld-i386/property-x86-ibt3a.d: Likewise. * testsuite/ld-i386/property-x86-ibt3b.d: Likewise. * testsuite/ld-i386/property-x86-ibt4.d: Likewise. * testsuite/ld-i386/property-x86-ibt5.d: Likewise. * testsuite/ld-i386/property-x86-isa1.d: Likewise. * testsuite/ld-i386/property-x86-isa2.d: Likewise. * testsuite/ld-i386/property-x86-isa3.d: Likewise. * testsuite/ld-i386/property-x86-shstk1a.d: Likewise. * testsuite/ld-i386/property-x86-shstk1b.d: Likewise. * testsuite/ld-i386/property-x86-shstk2.d: Likewise. * testsuite/ld-i386/property-x86-shstk3a.d: Likewise. * testsuite/ld-i386/property-x86-shstk3b.d: Likewise. * testsuite/ld-i386/property-x86-shstk4.d: Likewise. * testsuite/ld-i386/property-x86-shstk5.d: Likewise. * testsuite/ld-x86-64/pr23372c-x32.d: Likewise. * testsuite/ld-x86-64/pr23372c.d: Likewise. * testsuite/ld-x86-64/pr23486c-x32.d: Likewise. * testsuite/ld-x86-64/pr23486c.d: Likewise. * testsuite/ld-x86-64/pr23486d-x32.d: Likewise. * testsuite/ld-x86-64/pr23486d.d: Likewise. * testsuite/ld-x86-64/pr24322a-x32.d: Likewise. * testsuite/ld-x86-64/pr24322a.d: Likewise. * testsuite/ld-x86-64/pr24322b-x32.d: Likewise. * testsuite/ld-x86-64/pr24322b.d: Likewise. * testsuite/ld-x86-64/pr24458a-x32.d: Likewise. * testsuite/ld-x86-64/pr24458a.d: Likewise. * testsuite/ld-x86-64/pr24458b-x32.d: Likewise. * testsuite/ld-x86-64/pr24458b.d: Likewise. * testsuite/ld-x86-64/pr24458c-x32.d: Likewise. * testsuite/ld-x86-64/pr24458c.d: Likewise. * testsuite/ld-x86-64/property-1a.r: Likewise. * testsuite/ld-x86-64/property-2a.r: Likewise. * testsuite/ld-x86-64/property-3.r: Likewise. * testsuite/ld-x86-64/property-3a.r: Likewise. * testsuite/ld-x86-64/property-4.r: Likewise. * testsuite/ld-x86-64/property-4a.r: Likewise. * testsuite/ld-x86-64/property-5.r: Likewise. * testsuite/ld-x86-64/property-5a.r: Likewise. * testsuite/ld-x86-64/property-7a.r: Likewise. * testsuite/ld-x86-64/property-x86-3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-3.d: Likewise. * testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-4a.d: Likewise. * testsuite/ld-x86-64/property-x86-5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-5.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1.d: Likewise. * testsuite/ld-x86-64/property-x86-isa2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa2.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5.d: Likewise. * testsuite/ld-i386/i386.exp: Run property-x86-isa4. * testsuite/ld-i386/property-x86-isa4.d: New file. * testsuite/ld-x86-64/property-x86-isa4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa4.d: Likewise. * ld/testsuite/ld-x86-64/x86-64.exp: Run property-x86-isa4 and property-x86-isa4-x32.
2020-10-16Add a new option to the linker: --error-handling-script=<NAME>. Run the ↵Nick Clifton1-0/+5
script <NAME> if an undefined symbol or unfound library error is encountered. PR 26626 * ldmain.c (undefined_symbol): If an error handlign script is available, call it. * ldfile.c (error_handling_script): Declare. (ldfile_open_file): If a library cannot be found and an error handling script is available, call it. * ldmain.h (error_handling_script): Prototype. * ldlex.h (OPTION_ERROR_HANDLING_SCRIPT): Define. * lexsup.c (ld_options): Add --error-handling-script. (parse_args): Add support for --errror-handling-script. * ld.texi: Document the new feature. * configure.ac: Add --error-handling-script option to disable support for the new feature. * NEWS: Mention the new feature. * config.in: Regenerate. * configure: Regenerate.
2020-10-09x86: Support GNU_PROPERTY_X86_ISA_1_V[234] markerH.J. Lu1-0/+3
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA levels: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250 Update GNU_PROPERTY_X86_ISA_1_XXX macros: https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13 in x86 ELF binaries to indicate that micro-architecture ISA levels required to execute the binary: #define GNU_PROPERTY_X86_ISA_1_NEEDED (GNU_PROPERTY_X86_UINT32_OR_LO + 2) #define GNU_PROPERTY_X86_ISA_1_USED (GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2) #define GNU_PROPERTY_X86_ISA_1_V2 (1U << 0) #define GNU_PROPERTY_X86_ISA_1_V3 (1U << 1) #define GNU_PROPERTY_X86_ISA_1_V4 (1U << 2) The previous GNU_PROPERTY_X86_ISA_1_XXX macros are deprecated and renamed to GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX. In addition to EM_X86_64, GNU_PROPERTY_X86_ISA_1_V[234] marker can be used by ld.so to detect the x86-64-v4 shared library placed in an x86-64-v2 directory by mistake on an x86-64-v2 machine to avoid crashes on x86-64-v4 instructions. Add -z x86-64-v[234] linker command line option to mark x86-64-v[234] ISA level as needed. Also add #define GNU_PROPERTY_X86_FEATURE_2_MASK (1U << 11) for mask registers. bfd/ PR gas/26703 * elf-linker-x86.h (elf_linker_x86_params): Add isa_level. * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Merge GNU_PROPERTY_X86_ISA_1_V[234]. (_bfd_x86_elf_link_setup_gnu_properties): Generate GNU_PROPERTY_X86_ISA_1_V[234] for -z x86-64-v[234]. binutils/ PR gas/26703 * readelf.c (decode_x86_compat_2_isa): New function. (decode_x86_isa): Updated for new X86_ISA_1_XXX bits. (decode_x86_feature_1): Handle GNU_PROPERTY_X86_FEATURE_2_MASK. (print_gnu_property_note): Handle X86_COMPAT_2_ISA_1_USED, and X86_COMPAT_2_ISA_1_NEEDED. * testsuite/binutils-all/i386/pr21231b.s: Updated to the current GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED values. * testsuite/binutils-all/x86-64/pr21231b.s: Likewise. * testsuite/binutils-all/x86-64/pr23494a.s: Likewise. * testsuite/binutils-all/x86-64/pr23494b.s: Likewise. * testsuite/binutils-all/x86-64/pr23494c.s: Likewise. * testsuite/binutils-all/i386/empty.d: Updated. * testsuite/binutils-all/i386/ibt.d: Likewise. * testsuite/binutils-all/i386/pr21231a.d: Likewise. * testsuite/binutils-all/i386/pr21231b.d: Likewise. * testsuite/binutils-all/i386/shstk.d: Likewise. * testsuite/binutils-all/x86-64/empty-x32.d: Likewise. * testsuite/binutils-all/x86-64/empty.d: Likewise. * testsuite/binutils-all/x86-64/ibt-x32.d: Likewise. * testsuite/binutils-all/x86-64/ibt.d: Likewise. * testsuite/binutils-all/x86-64/pr21231a.d: Likewise. * testsuite/binutils-all/x86-64/pr21231b.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e.d: Likewise. * testsuite/binutils-all/x86-64/shstk-x32.d: Likewise. * testsuite/binutils-all/x86-64/shstk.d: Likewise. gas/ PR gas/26703 * config/tc-i386.c (xstate): Add xstate_mask. (md_assemble): Check i.types[j], instead of i.tm.operand_types[j], for xstate. Set xstate_mask, instead of xstate_zmm, for RegMask. (output_insn): Update for GNU_PROPERTY_X86_ISA_1_V[234]. Update xstate for mask register and VSIB. * testsuite/gas/i386/i386.exp: Run more GNU_PROPERTY tests. * testsuite/gas/i386/property-1.s: Updated to the current GNU_PROPERTY_X86_ISA_1_USED value. * testsuite/gas/i386/property-2.s: Only keep cmove. * testsuite/gas/i386/property-3.s: Changed to addsubpd. * testsuite/gas/i386/property-1.d: Updated. * testsuite/gas/i386/property-2.d: Likewise. * testsuite/gas/i386/property-3.d: Likewise. * testsuite/gas/i386/property-4.d: Likewise. * testsuite/gas/i386/property-5.d: Likewise. * testsuite/gas/i386/property-6.d: Likewise. * testsuite/gas/i386/x86-64-property-1.d: Likewise. * testsuite/gas/i386/x86-64-property-2.d: Likewise. * testsuite/gas/i386/x86-64-property-3.d: Likewise. * testsuite/gas/i386/x86-64-property-4.d: Likewise. * testsuite/gas/i386/x86-64-property-5.d: Likewise. * testsuite/gas/i386/x86-64-property-6.d: Likewise. * testsuite/gas/i386/x86-64-property-7.d: Likewise. * testsuite/gas/i386/x86-64-property-8.d: Likewise. * testsuite/gas/i386/x86-64-property-9.d: Likewise. * testsuite/gas/i386/property-11.d: New file. * testsuite/gas/i386/property-11.s: Likewise. * testsuite/gas/i386/property-12.d: Likewise. * testsuite/gas/i386/property-12.s: Likewise. * testsuite/gas/i386/property-13.d: Likewise. * testsuite/gas/i386/property-13.s: Likewise. * testsuite/gas/i386/x86-64-property-11.d: Likewise. * testsuite/gas/i386/x86-64-property-12.d: Likewise. * testsuite/gas/i386/x86-64-property-13.d: Likewise. * testsuite/gas/i386/x86-64-property-14.d: Likewise. * testsuite/gas/i386/x86-64-property-14.s: Likewise. include/ PR gas/26703 * elf/common.h (GNU_PROPERTY_X86_ISA_1_USED): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_USED): This. (GNU_PROPERTY_X86_ISA_1_NEEDED): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_NEEDED): This. (GNU_PROPERTY_X86_ISA_1_XXX): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX): This. (GNU_PROPERTY_X86_ISA_1_NEEDED): New. (GNU_PROPERTY_X86_ISA_1_USED): Likewise. (GNU_PROPERTY_X86_ISA_1_V2): Likewise. (GNU_PROPERTY_X86_ISA_1_V3): Likewise. (GNU_PROPERTY_X86_ISA_1_V4): Likewise. (GNU_PROPERTY_X86_FEATURE_2_MASK): Likewise. ld/ PR gas/26703 * NEWS: Mention -z x86-64-v[234]. * ld.texi: Document -z x86-64-v[234]. * emulparams/elf32_x86_64.sh: Use x86-64-level.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/x86-64-level.sh: New file. * testsuite/ld-elf/x86-feature-1a.rd: Update. * testsuite/ld-elf/x86-feature-1b.rd: Likewise. * testsuite/ld-elf/x86-feature-1c.rd: Likewise. * testsuite/ld-elf/x86-feature-1d.rd: Likewise. * testsuite/ld-elf/x86-feature-1e.rd: Likewise. * testsuite/ld-i386/pr23372c.d: Likewise. * testsuite/ld-i386/pr23486c.d: Likewise. * testsuite/ld-i386/pr23486d.d: Likewise. * testsuite/ld-i386/pr24322a.d: Likewise. * testsuite/ld-i386/pr24322b.d: Likewise. * testsuite/ld-i386/property-1a.r: Likewise. * testsuite/ld-i386/property-2a.r: Likewise. * testsuite/ld-i386/property-3.r: Likewise. * testsuite/ld-i386/property-3a.r: Likewise. * testsuite/ld-i386/property-4.r: Likewise. * testsuite/ld-i386/property-4a.r: Likewise. * testsuite/ld-i386/property-5.r: Likewise. * testsuite/ld-i386/property-5a.r: Likewise. * testsuite/ld-i386/property-7a.r: Likewise. * testsuite/ld-i386/property-x86-3.d: Likewise. * testsuite/ld-i386/property-x86-4a.d: Likewise. * testsuite/ld-i386/property-x86-5.d: Likewise. * testsuite/ld-i386/property-x86-cet1.d: Likewise. * testsuite/ld-i386/property-x86-cet2a.d: Likewise. * testsuite/ld-i386/property-x86-cet5a.d: Likewise. * testsuite/ld-i386/property-x86-cet5b.d: Likewise. * testsuite/ld-i386/property-x86-ibt1a.d: Likewise. * testsuite/ld-i386/property-x86-ibt1b.d: Likewise. * testsuite/ld-i386/property-x86-ibt2.d: Likewise. * testsuite/ld-i386/property-x86-ibt3a.d: Likewise. * testsuite/ld-i386/property-x86-ibt3b.d: Likewise. * testsuite/ld-i386/property-x86-ibt4.d: Likewise. * testsuite/ld-i386/property-x86-ibt5.d: Likewise. * testsuite/ld-i386/property-x86-shstk1a.d: Likewise. * testsuite/ld-i386/property-x86-shstk1b.d: Likewise. * testsuite/ld-i386/property-x86-shstk2.d: Likewise. * testsuite/ld-i386/property-x86-shstk3a.d: Likewise. * testsuite/ld-i386/property-x86-shstk3b.d: Likewise. * testsuite/ld-i386/property-x86-shstk4.d: Likewise. * testsuite/ld-i386/property-x86-shstk5.d: Likewise. * testsuite/ld-x86-64/pr23372c-x32.d: Likewise. * testsuite/ld-x86-64/pr23372c.d: Likewise. * testsuite/ld-x86-64/pr23486c.d: Likewise. * testsuite/ld-x86-64/pr23486d-x32.d: Likewise. * testsuite/ld-x86-64/pr23486d.d: Likewise. * testsuite/ld-x86-64/pr24322a-x32.d: Likewise. * testsuite/ld-x86-64/pr24322a.d: Likewise. * testsuite/ld-x86-64/pr24322b-x32.d: Likewise. * testsuite/ld-x86-64/pr24322b.d: Likewise. * testsuite/ld-x86-64/pr24458a-x32.d: Likewise. * testsuite/ld-x86-64/pr24458a.d: Likewise. * testsuite/ld-x86-64/pr24458b-x32.d: Likewise. * testsuite/ld-x86-64/pr24458b.d: Likewise. * testsuite/ld-x86-64/pr24458c-x32.d: Likewise. * testsuite/ld-x86-64/pr24458c.d: Likewise. * testsuite/ld-x86-64/property-1a.r: Likewise. * testsuite/ld-x86-64/property-2a.r: Likewise. * testsuite/ld-x86-64/property-3.r: Likewise. * testsuite/ld-x86-64/property-3a.r: Likewise. * testsuite/ld-x86-64/property-4.r: Likewise. * testsuite/ld-x86-64/property-4a.r: Likewise. * testsuite/ld-x86-64/property-5.r: Likewise. * testsuite/ld-x86-64/property-5a.r: Likewise. * testsuite/ld-x86-64/property-7a.r: Likewise. * testsuite/ld-x86-64/property-x86-3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-3.d: Likewise. * testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-4a.d: Likewise. * testsuite/ld-x86-64/property-x86-5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-5.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5.d: Likewise. * testsuite/ld-i386/i386.exp: Run property-x86-6, property-x86-isa1, property-x86-isa2 and property-x86-isa3. * testsuite/ld-i386/property-x86-1.S: Updated to the current GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED values. * testsuite/ld-i386/property-x86-2.S: Likewise. * testsuite/ld-i386/property-x86-3.s: Likewise. * testsuite/ld-x86-64/pr23372d.s: Likewise. * testsuite/ld-x86-64/pr23372e.s: Likewise. * testsuite/ld-x86-64/pr23372f.s: Likewise. * testsuite/ld-x86-64/pr23486c.s: Likewise. * testsuite/ld-x86-64/pr23486d.s: Likewise. * testsuite/ld-x86-64/property-x86-1.S: Likewise. * testsuite/ld-x86-64/property-x86-2.S: Likewise. * testsuite/ld-x86-64/property-x86-3.s: Likewise. * testsuite/ld-x86-64/property-x86-5a.s: Likewise. * testsuite/ld-x86-64/property-x86-5b.s: Likewise. * testsuite/ld-i386/property-x86-6.d: New file. * testsuite/ld-i386/property-x86-isa1.d: Likewise. * testsuite/ld-i386/property-x86-isa2.d: Likewise. * testsuite/ld-i386/property-x86-isa3.d: Likewise. * testsuite/ld-x86-64/property-x86-6-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-6.d: Likewise. * testsuite/ld-x86-64/property-x86-6.s: Likewise. * testsuite/ld-x86-64/property-x86-isa1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1.s: Likewise. * testsuite/ld-x86-64/property-x86-isa2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa2.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3.d: Likewise. * testsuite/ld-x86-64/simple.s: Likewise. * ld/testsuite/ld-x86-64/x86-64.exp: Run property-x86-6, property-x86-6-x32, property-x86-isa1, property-x86-isa1-x32, property-x86-isa2, property-x86-isa2-x32, property-x86-isa3-x32 and property-x86-isa3.
2020-09-12elf: Add -z unique-symbol to avoid duplicated local symbol namesH.J. Lu1-0/+2
The symbol string table in the .symtab section is optional and cosmetic. The contents of the .symtab section have no impact on run-time execution. The symbol names in the symbol string table help distinguish addresses at different locations. Add a linker option, -z unique-symbol, to avoid duplicated local symbol names in the symbol string table. This feature was well received by the livepatch maintainers. It not only solves the duplicated local symbol name problem, but also would allow livepatch to more precisely locate duplicate symbols in general for patching. bfd/ PR ld/26391 * elflink.c (elf_final_link_info): Add local_hash_table. (local_hash_entry): New. (local_hash_newfunc): Likewise. (elf_link_output_symstrtab): Append ".COUNT" to duplicated local symbols. (bfd_elf_final_link): Initialize and free local_hash_table for "-z unique-symbol". include/ PR ld/26391 * bfdlink.h (bfd_link_info): Add unique_symbol. ld/ PR ld/26391 * NEWS: Mention "-z unique-symbol". * emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Handle "-z unique-symbol" and "-z nounique-symbol". * ld.texi: Document "-z unique-symbol" and "-z nounique-symbol". * lexsup.c (elf_static_list_options): Add "-z unique-symbol" and "-z nounique-symbol". * testsuite/ld-elf/elf.exp: Add PR ld/26391 tests. * testsuite/ld-elf/pr26391.nd: New file. * testsuite/ld-elf/pr26391.out: Likewise. * testsuite/ld-elf/pr26391a.c: Likewise. * testsuite/ld-elf/pr26391b.c: Likewise. * testsuite/ld-elf/pr26391c.c: Likewise. * testsuite/ld-elf/pr26391d.c: Likewise.
2020-08-27Change the default characteristics of DLLs built by the linker to more ↵Jeremy Drake1-0/+3
secure settings. PR 19011 * emultempl/pe.em (DEFAULT_DLL_CHARACTERISTICS): Define. (pe_dll_characteristics): Initialise to DEFAULT_DLL_CHARACTERISTICS. (add_options): Add options to disable DLL characteristics. (list_options): List the new options. (handle_options): Handle the new options. * emultempl/pep.em: Similar changes to above. (NT_EXE_IMAGE_BASE): Default to an address above 4G. (NT_DLL_IMAGE_BASE, NT_DLL_AUTO_IMAGE_BASE, (NT_DLL_AUTO_IMAGE_MASK): Likewise. * ld.texi: Document the new options. * pe-dll.c (pe_dll_enable_reloc_section): Change to default to true. (generate_reloc): Do nothing if there is no reloc section. (pe_exe_fill_sections): Only assign the reloc section contents if the section exists. * testsuite/ld-pe/pe.exp: Add the --disable-reloc-section flag to the .secrel32 tests. * testsuite/ld-scripts/provide-8.d: Expect for fail on PE targets. * NEWS: Mention the change in DLL generation.
2020-07-22ld: new options --ctf-variables and --ctf-share-typesNick Alcock1-0/+10
libctf recently changed to make it possible to not emit the CTF variables section. Make this the default for ld: the variables section is a simple name -> type mapping, and the names can be quite voluminous. Nothing in the variables section appears in the symbol table, by definition, so GDB cannot make use of them: special-purpose projects that implement their own analogues of symbol table lookup can do so, but they'll need to tell the linker to emit the variables section after all. The new --ctf-variables option does this. The --ctf-share-types option (valid values "share-duplicated" and "share-unconflicted") allow the caller to specify the CTF link mode. Most users will want share-duplicated, since it allows for more convenient debugging: but very large projects composed of many decoupled components may want to use share-unconflicted mode, which places types that appear in only one TU into per-TU dicts. (They may also want to relink the CTF using the ctf_link API and cu-mapping, to make their "components" larger than a single TU. Right now the linker does not expose the CU-mapping machinery. Perhaps it should in future to make this use case easier.) For now, giving the linker the ability to emit share-duplicated CTF lets us add testcases for that mode to the testsuite. ld/ * ldlex.h (option_values) <OPTION_CTF_VARIABLES, OPTION_NO_CTF_VARIABLES, OPTION_CTF_SHARE_TYPES>: New. * ld.h (ld_config_type) <ctf_variables, ctf_share_duplicated>: New fields. * ldlang.c (lang_merge_ctf): Use them. * lexsup.c (ld_options): Add ctf-variables, no-ctf-variables, ctf-share-types. (parse_args) <OPTION_CTF_VARIABLES, OPTION_NO_CTF_VARIABLES, OPTION_CTF_SHARE_TYPES>: New cases. * ld.texi: Document new options. * NEWS: Likewise.
2020-07-04Add markers for binutils 2.35 branchNick Clifton1-0/+2
2020-06-30Remove x86 NaCl target supportH.J. Lu1-0/+2
NaCl has been deprecated: https://developer.chrome.com/native-client/migration and NaCl will completely disappear in 2021: https://lists.llvm.org/pipermail/llvm-dev/2020-April/141107.html Remove x86 NaCl target support from bfd, binutils, gas and ld. bfd/ * archures.c (bfd_mach_i386_nacl): Removed. (bfd_mach_i386_i386_nacl): Likewise. (bfd_mach_x86_64_nacl): Likewise. (bfd_mach_x64_32_nacl): Likewise. * config.bfd: Remove *-*-nacl* targets. * configure.ac: Remove x86 NaCl target vectors. * cpu-i386.c (bfd_arch_i386_onebyte_nop_fill): Removed. (bfd_x64_32_nacl_arch): Likewise. (bfd_x86_64_nacl_arch): Likewise. (bfd_i386_nacl_arch): Likewise. (bfd_x64_32_arch_intel_syntax): Updated. * elf32-i386.c: Don't include "elf-nacl.h". (elf_i386_nacl_plt): Removed. (elf_i386_nacl_plt0_entry): Likewise. (elf_i386_nacl_plt_entry): Likewise. (elf_i386_nacl_pic_plt0_entry): Likewise. (elf_i386_nacl_pic_plt_entry): Likewise. (elf_i386_nacl_eh_frame_plt): Likewise. (elf_i386_nacl_plt): Likewise. (elf32_i386_nacl_elf_object_p): Likewise. (elf_i386_get_synthetic_symtab): Updated. (elf_i386_link_setup_gnu_properties): Likewise. * elf64-x86-64.c: Don't include "elf-nacl.h". (elf_x86_64_nacl_plt): Removed. (elf64_x86_64_nacl_elf_object_p): Likewise. (elf_x86_64_nacl_plt0_entry): Likewise. (elf_x86_64_nacl_plt_entry): Likewise. (elf_x86_64_nacl_eh_frame_plt): Likewise. (elf_x86_64_nacl_plt): Likewise. (elf32_x86_64_nacl_elf_object_p): Likewise. (elf_x86_64_get_synthetic_symtab): Updated. (elf_x86_64_link_setup_gnu_properties): Likewise. * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Likewise. * targets.c: Remove x86 NaCl target vectors. * bfd-in2.h: Regenerated. * configure: Likewise. binutils/ * NEWS: Mention x86 NaCl target support removal. * dwarf.c (init_dwarf_regnames_by_bfd_arch_and_mach): Remove x86 NaCl target support. * testsuite/binutils-all/elfedit-1.d: Likewise. * testsuite/binutils-all/i386/i386.exp: Likewise. * testsuite/binutils-all/x86-64/objects.exp: Likewise. * testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a.d: Likewise. * testsuite/binutils-all/x86-64/pr23494b-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494b.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e.d: Likewise. * testsuite/binutils-all/x86-64/x86-64.exp: Likewise. gas/ * NEWS: Mention x86 NaCl target support removal. * config/tc-i386.c: Remove x86 NaCl target support. * config/tc-i386.h: Likewise. * configure.tgt: Likewise. * testsuite/gas/i386/i386.exp: Likewise. * testsuite/gas/i386/iamcu-1.d: Likewise. * testsuite/gas/i386/iamcu-2.d: Likewise. * testsuite/gas/i386/iamcu-3.d: Likewise. * testsuite/gas/i386/iamcu-4.d: Likewise. * testsuite/gas/i386/iamcu-5.d: Likewise. * testsuite/gas/i386/k1om.d: Likewise. * testsuite/gas/i386/l1om.d: Likewise. ld/ * Makefile.am (ALL_EMULATION_SOURCES): Remove eelf_i386_nacl.c, eelf32_x86_64_nacl.c, eelf_x86_64_nacl.c. Remove x86 NaCl dep files. * NEWS: Mention x86 NaCl target support removal. * configure.tgt: Remove x86 NaCl target support. * testsuite/ld-elf/binutils.exp: Likewise. * testsuite/ld-elf/elf.exp: Likewise. * testsuite/ld-elfvers/vers.exp: Likewise. * testsuite/ld-i386/align-branch-1.d: Likewise. * testsuite/ld-i386/export-class.exp: Likewise. * testsuite/ld-i386/i386.exp: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/pie1.d: Likewise. * testsuite/ld-i386/pr12570a.d: Likewise. * testsuite/ld-i386/pr12570b.d: Likewise. * testsuite/ld-i386/pr19636-1d.d: Likewise. * testsuite/ld-i386/pr19636-1l.d: Likewise. * testsuite/ld-i386/pr19636-2c.d: Likewise. * testsuite/ld-i386/pr19636-2d.d: Likewise. * testsuite/ld-i386/pr19636-2e.d: Likewise. * testsuite/ld-i386/pr20244-1a.d: Likewise. * testsuite/ld-i386/pr20244-1b.d: Likewise. * testsuite/ld-i386/pr20244-2a.d: Likewise. * testsuite/ld-i386/pr20244-2b.d: Likewise. * testsuite/ld-i386/pr20244-2c.d: Likewise. * testsuite/ld-i386/pr20244-4a.d: Likewise. * testsuite/ld-i386/pr20244-4b.d: Likewise. * testsuite/ld-i386/pr21884.d: Likewise. * testsuite/ld-ifunc/binutils.exp: Likewise. * testsuite/ld-ifunc/ifunc-10-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-10-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-11-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-11-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-12-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-12-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-13-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-13-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14c-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14c-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14d-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14d-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14e-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14e-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-14f-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-14f-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-15-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-15-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-16-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-16-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-16-x86-64-now.d: Likewise. * testsuite/ld-ifunc/ifunc-16-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-17a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-17a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-17b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-17b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-18b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-19a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-19a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-19b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-19b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-2-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-2-local-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-local-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-2-local-x86-64-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-local-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-2-x86-64-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-20-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-20-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-5a-local-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-5a-local-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-5b-local-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-5b-local-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5r-local-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-5r-local-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-6a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-6a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-6b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-6b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-7a-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-7a-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-7b-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-7b-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-8-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-8-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-9-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-9-x86-64.d: Likewise. * testsuite/ld-ifunc/pr17154-i386-now.d: Likewise. * testsuite/ld-ifunc/pr17154-i386.d: Likewise. * testsuite/ld-ifunc/pr17154-x86-64-now.d: Likewise. * testsuite/ld-ifunc/pr17154-x86-64.d: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-x86-64/align-branch-1.d: Likewise. * testsuite/ld-x86-64/dwarfreloc.exp: Likewise. * testsuite/ld-x86-64/line.exp: Likewise. * testsuite/ld-x86-64/load1a.d: Likewise. * testsuite/ld-x86-64/load1b.d: Likewise. * testsuite/ld-x86-64/load1c.d: Likewise. * testsuite/ld-x86-64/load1d.d: Likewise. * testsuite/ld-x86-64/pie3.d: Likewise. * testsuite/ld-x86-64/pr18160.d: Likewise. * testsuite/ld-x86-64/pr19013-x32.d: Likewise. * testsuite/ld-x86-64/pr19013.d: Likewise. * testsuite/ld-x86-64/pr19636-2d.d: Likewise. * testsuite/ld-x86-64/pr19636-2l.d: Likewise. * testsuite/ld-x86-64/pr20253-1b.d: Likewise. * testsuite/ld-x86-64/pr20253-1d.d: Likewise. * testsuite/ld-x86-64/pr20253-1f.d: Likewise. * testsuite/ld-x86-64/pr20253-1h.d: Likewise. * testsuite/ld-x86-64/pr20253-1j.d: Likewise. * testsuite/ld-x86-64/pr20253-1l.d: Likewise. * testsuite/ld-x86-64/pr21884.d: Likewise. * testsuite/ld-x86-64/pr22393-3a.rd: Likewise. * testsuite/ld-x86-64/pr22393-3b.rd: Likewise. * testsuite/ld-x86-64/tlsgd10.dd: Likewise. * testsuite/ld-x86-64/tlsgd5.dd: Likewise. * testsuite/ld-x86-64/tlsgd8.dd: Likewise. * testsuite/ld-x86-64/x86-64.exp: Likewise. * emulparams/elf32_x86_64_nacl.sh: Removed. * emulparams/elf_i386_nacl.sh: Likewise. * emulparams/elf_x86_64_nacl.sh: Likewise. * testsuite/ld-i386/emit-relocs-nacl.rd: Likewise. * testsuite/ld-i386/load1-nacl.d: Likewise. * testsuite/ld-i386/pie1-nacl.d: Likewise. * testsuite/ld-i386/plt-nacl.pd: Likewise. * testsuite/ld-i386/plt-pic-nacl.pd: Likewise. * testsuite/ld-i386/pr17709-nacl.rd: Likewise. * testsuite/ld-i386/pr19636-1d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2c-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2e-nacl.d: Likewise. * testsuite/ld-i386/pr19827-nacl.rd: Likewise. * testsuite/ld-i386/pr21884-nacl.d: Likewise. * testsuite/ld-i386/pr21884-nacl.t: Likewise. * testsuite/ld-i386/tlsbin-nacl.rd: Likewise. * testsuite/ld-i386/tlsbin2-nacl.rd: Likewise. * testsuite/ld-i386/tlsbindesc-nacl.rd: Likewise. * testsuite/ld-i386/tlsdesc-nacl.rd: Likewise. * testsuite/ld-i386/tlsgdesc-nacl.rd: Likewise. * testsuite/ld-i386/tlsnopic-nacl.rd: Likewise. * testsuite/ld-i386/tlspic-nacl.rd: Likewise. * testsuite/ld-i386/tlspic2-nacl.rd: Likewise. * testsuite/ld-x86-64/ilp32-4-nacl.d: Likewise. * testsuite/ld-x86-64/load1a-nacl.d: Likewise. * testsuite/ld-x86-64/load1b-nacl.d: Likewise. * testsuite/ld-x86-64/load1c-nacl.d: Likewise. * testsuite/ld-x86-64/load1d-nacl.d: Likewise. * testsuite/ld-x86-64/pie3-nacl.d: Likewise. * testsuite/ld-x86-64/plt-nacl.pd: Likewise. * testsuite/ld-x86-64/pr17709-nacl.rd: Likewise. * testsuite/ld-x86-64/pr19013-nacl.d: Likewise. * testsuite/ld-x86-64/pr19636-2d-nacl.d: Likewise. * testsuite/ld-x86-64/pr19827-nacl.rd: Likewise. * testsuite/ld-x86-64/pr21884-nacl.d: Likewise. * testsuite/ld-x86-64/pr21884-nacl.t: Likewise. * testsuite/ld-x86-64/split-by-file-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbin-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbin2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbindesc-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsdesc-nacl.pd: Likewise. * testsuite/ld-x86-64/tlsdesc-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsgdesc-nacl.rd: Likewise. * testsuite/ld-x86-64/tlspic-nacl.rd: Likewise. * testsuite/ld-x86-64/tlspic2-nacl.rd: Likewise. * Makefile.in: Regenerated. * po/BLD-POTFILES.in: Likewise.
2020-06-23PR 22843: ld, gold: Add --dependency-file option.Roland McGrath1-0/+4
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.
2020-06-15gold, ld: Implement -z start-stop-visibility=... option.Roland McGrath1-0/+3
gold/ Implement -z start-stop-visibility=... option. * options.h (class General_options): Handle -z start-stop-visibility=. (General_options::start_stop_visibility_enum): New public method. (General_options::set_start_stop_visibility_enum): New private method. (General_options::start_stop_visibility_enum_): New private member. * options.cc (General_options::General_options): Add initializer. (General_options::finalize): Set this->start_stop_visibility_enum_ from string value. * layout.cc (Layout::define_section_symbols): Use option setting. bfd/ * elflink.c (bfd_elf_define_start_stop): Use start_stop_visibility field of bfd_link_info. include/ * bfdlink.h (struct bfd_link_info): New field start_stop_visibility. ld/ * NEWS: Mention -z start-stop-visibility=... option for ELF. * ld.texi (Options): Document -z start-stop-visibility=... option. * ldmain.c (main): Initialize link_info.start_stop_visibility. * emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Parse -z start-stop-visibility=... option.
2020-06-03ld: Add --export-dynamic-symbol and --export-dynamic-symbol-listFangrui Song1-0/+3
--export-dynamic-symbol-list is like a dynamic list, but without the symbolic property for unspecified symbols. When creating an executable, --export-dynamic-symbol-list is treated like --dynamic-list. When creating a shared library, it is treated like --dynamic-list if -Bsymbolic or --dynamic-list are used, otherwise, it is ignored, so that references to matched symbols will not be bound to the definitions within the shared library. PR ld/25910 * NEWS: Mention --export-dynamic-symbol[-list]. * ld.texi: Document --export-dynamic-symbol[-list]. * ldgram.y: Pass current_dynamic_list_p to lang_append_dynamic_list. * ldlang.c (current_dynamic_list_p): New. (ang_append_dynamic_list): Updated to take a pointer to struct bfd_elf_dynamic_list * argument instead of using link_info.dynamic_list. (lang_append_dynamic_list_cpp_typeinfo): Pass &link_info.dynamic_list to ang_append_dynamic_list. (lang_append_dynamic_list_cpp_new): Likewise. * ldlang.h (current_dynamic_list_p): New. (lang_append_dynamic_list): Add a pointer to struct bfd_elf_dynamic_list * argument. * ldlex.h (option_values): Add OPTION_EXPORT_DYNAMIC_SYMBOL and OPTION_EXPORT_DYNAMIC_SYMBOL_LIST. * lexsup.c (ld_options): Add entries for OPTION_EXPORT_DYNAMIC_SYMBOL and OPTION_EXPORT_DYNAMIC_SYMBOL_LIST. (parse_args): Handle --export-dynamic-symbol and --export-dynamic-symbol-list. * testsuite/ld-dynamic/export-dynamic-symbol-1.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-2.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-glob.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-1.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-2.d: New. * testsuite/ld-dynamic/export-dynamic-symbol-list-glob.d: New. * testsuite/ld-dynamic/export-dynamic-symbol.exp: New. * testsuite/ld-dynamic/export-dynamic-symbol.s: New. * testsuite/ld-dynamic/foo-bar.list: New. * testsuite/ld-dynamic/foo.list: New. * testsuite/ld-dynamic/foo.s: New. * testsuite/ld-dynamic/fstar.list: New. * testsuite/ld-elf/dlempty.list: New. * testsuite/ld-elf/shared.exp: Add tests for --export-dynamic-symbol and --export-dynamic-symbol-list.
2020-05-28ld: Mention --enable-textrel-check=yes is default for Linux/x86 targetsH.J. Lu1-1/+1
* NEWS: Mention --enable-textrel-check=yes is default for Linux/x86 targets.
2020-05-28ld: Add --enable-textrel-check=[no|yes|warning|error]H.J. Lu1-0/+4
Add a configure option, --enable-textrel-check=[no|yes|warning|error], to decide what ELF linker should do by default with DT_TEXTREL in an executable or shared library. PR ld/20824 * NEWS: Mention --enable-textrel-check=[no|yes|warning|error]. * configure.ac: Add --enable-textrel-check=[no|yes|warning|error]. (DEFAULT_LD_TEXTREL_CHECK): New AC_DEFINE_UNQUOTED. (DEFAULT_LD_TEXTREL_CHECK_WARNING): Likewise. * ldmain.c (main): Initialize link_info.textrel_check to DEFAULT_LD_TEXTREL_CHECK. * lexsup.c (ld_options): Check DEFAULT_LD_TEXTREL_CHECK_WARNING. * config.in: Regenerated. * configure: Likewise.
2020-05-28Linker: Remove support for -Map= with an empty argument.Nick Clifton1-3/+2
* lexsup.c (parse_args): Generate an error if a name is not provided to the -Map option. (ld_options): Mention that the -Map option supports a directory name as an argument. * NEWS: Remove mention of support for an empty string as an argument to -Map. * ld.texi: Likewise.
2020-05-27 [PATCH] allow empty string as argument to -MapNick Clifton1-0/+5
* lexsup.c (parse_args): If the map filename is defined but empty create a name based upon the output file name. If the name is defined but refers to a directory create a file inside the directory based on the output file name. * ld.texi: Document the new feature. * testsuite/ld-script/map-address.exp: Add test of new feature. * NEWS: Mention the new feature.
2020-05-27ld: Add --warn-textrel and obsolete --warn-shared-textrelH.J. Lu1-0/+3
--warn-shared-textrel and -z text apply to both shared object and PIE. Add --warn-textrel and obsolete --warn-shared-textrel. Consolidate --warn-textrel and -z text/notext/textoff implementation. bfd/ PR ld/22909 * elflink.c (bfd_elf_final_link): Use bfd_link_textrel_check. Check bfd_link_dll when issue a DT_TEXTREL warning. * elfxx-x86.c (maybe_set_textrel): Likewise. (_bfd_x86_elf_size_dynamic_sections): Likewise. include/ PR ld/22909 * bfdlink.h (textrel_check_method): New enum. (bfd_link_textrel_check): New. (bfd_link_info): Replace warn_shared_textrel and error_textrel with textrel_check. ld/ PR ld/22909 * NEWS: Mention --warn-textrel. * ld.texi: Update -z text/notext/textoff. Add --warn-textrel. Remove --warn-shared-textrel. * ldlex.h (option_values): Rename OPTION_WARN_SHARED_TEXTREL to OPTION_WARN_TEXTREL. * lexsup.c (ld_options): Add --warn-textrel. Obsolete --warn-shared-textrel. (parse_args): Updated. (elf_shlib_list_options): Check link_info.textrel_check. * emultempl/elf.em: Updated. * testsuite/ld-elf/pr19539.d: Replace -z notext with --warn-textrel. Expect a warning. * testsuite/ld-i386/warn1.d: Update expected warning.
2020-04-22For relative paths in INPUT() and GROUP(), search the directory of the ↵Fangrui Song1-0/+4
current linker script before searching other paths. PR ld/25806 * ldlang.h (struct lang_input_statement_struct): Add extra_search_path. * ldlang.c (current_input_file): New. (ldirname): New. (new_afile): Add from_filename parameter. Set extra_search_path. (lang_add_input_file): Pass current_input_file to new_afile. (load_symbols): Set current_input_file.
2020-04-14Fixes for the magic number used in PDP11 AOUT binaries.Stephen Casner1-0/+4
PR ld/25677 include * aout/aout64.h (N_DATADDR): Add IMAGIC case. bfd * pdp11.c: Add implementation of --imagic option. (adjust_o_magic): Fix objcopy --extract-symbol test. * libaout.h (enum aout_magic): Add i_magic. ld * emulparams/pdp11.sh (SCRIPT_NAME): Change to pdp11. (EXTRA_EM_FILE): New, add emulation file pdp11. * scripttempl/pdp11.sc: New, derived from aout.sc without irrelevant input sections. * emultempl/pdp11.em (_add_options, _handle_option) (_list_options): New. Add options -z, --imagic for pdp11-aout. (_before_parse): Make --omagic be default instead of --nmagic. (_get_script): Modify special-case linker script for --imagic. * lexsup.c (parse_args): Explictly set config.text_read_only for -n. * ld.texi (Options): Add documentation of PDP11-specific options. (Options): Fix unrelated typo to --no-compact-branches. * gen-doc.texi: @set PDP11. * testsuite/ld-pdp11/pdp11.exp: New, start pdp11 testing. * testsuite/ld-pdp11/sections.s: New, source for options tests. * testsuite/ld-pdp11/imagic.d: New, test --imagic format. * testsuite/ld-pdp11/imagicz.d: New, test -z (imagic) format. * testsuite/ld-pdp11/nmagic.d: New, test --nmagic format. * testsuite/ld-pdp11/omagic.d: New, test --omagic format.
2020-03-13Add support for non-contiguous memory regionsChristophe Lyon1-0/+3
2020-01-06 Christophe Lyon <christophe.lyon@linaro.org> bfd/ * bfd-in2.h: Regenerate. * section.c (asection): Add already_assigned field. (BFD_FAKE_SECTION): Add default initializer for it. * ecoff.c (bfd_debug_section): Initialize already_assigned field. * elf32-arm.c (arm_build_one_stub): Add support for non_contiguous_regions. * elf32-csky.c (csky_build_one_stub): Likewise. * elf32-hppa.c (hppa_build_one_stub): Likewise. * elf32-m68hc11.c (m68hc11_elf_build_one_stub): Likewise. * elf32-m68hc12.c (m68hc12_elf_build_one_stub): Likewise. * elf32-metag.c (metag_build_one_stub): Likewise. * elf32-nios2.c (nios2_build_one_stub): Likewise. * elf64-ppc.c (ppc_build_one_stub): Likewise. (ppc_size_one_stub): Likewise. * elfnn-aarch64.c (aarch64_build_one_stub): Likewise. * elflink.c (elf_link_input_bfd): Likewise. include/ * bfdlink.h (bfd_link_info): Add non_contiguous_regions and non_contiguous_regions_warnings fields. ld/ * ldlang.c (lang_add_section): Add support for non_contiguous_regions. (size_input_section): Likewise. (lang_size_sections_1): Likewise. (process_insert_statements): Likewise. * ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS. * lexsup.c (ld_options): Add entries for --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. (parse_args): Handle it. * NEWS: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. * ld.texi: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings documentation. * emultempl/armelf.em (elf32_arm_add_stub_section): Add SEC_LINKER_CREATED flag. * emultempl/xtensaelf.em (ld_build_required_section_dependence): Emit an error when --enable-non-contiguous-regions is used. * testsuite/ld-elf/non-contiguous.d: New. * testsuite/ld-elf/non-contiguous.ld: New. * testsuite/ld-elf/non-contiguous.s: New. * testsuite/ld-arm/arm-elf.exp: Run the new tests. * testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New. * testsuite/ld-powerpc/powerpc.exp: Run new tests. * testsuite/ld-powerpc/non-contiguous-powerpc.d: New. * testsuite/ld-powerpc/non-contiguous-powerpc.ld: New. * testsuite/ld-powerpc/non-contiguous-powerpc.sd: New. * testsuite/ld-powerpc/non-contiguous-powerpc64.d: New.
2020-02-22PR25585, PHDR segment not covered by LOAD segmentAlan Modra1-0/+6
I closed this bug as invalid, but I think it is worth mentioning in NEWS that older linkers didn't check PT_PHDR very well. The patch also allows people to force an output file with --noinhibit-exec after the error. bfd/ PR 25585 * elf.c (assign_file_positions_for_load_sections): Continue linking on "PHDR segment not covered by LOAD segment" errors. ld/ PR 25585 * NEWS: Mention better "PHDR segment not covered by LOAD segment" checking.
2020-01-18Add markers for 2.34 branch to the NEWS files and ChangeLogs.Nick Clifton1-0/+2
2020-01-02Add support for the GBZ80, Z180, and eZ80 variants of the Z80 architecure. ↵Sergey Belyashov1-0/+7
Add an ELF based target for these as well. PR 25224 bfd * Makefile.am: Add z80-elf target support. * configure.ac: Likewise. * targets.c: Likewise. * config.bfd: Add z80-elf target support and new arches: ez80 and z180. * elf32-z80.c: New file. * archures.c: Add new z80 architectures: eZ80 and Z180. * coffcode.h: Likewise. * cpu-z80.c: Likewise. * bfd-in2.h: Likewise plus additional Z80 relocations. * coff-z80.c: Add new relocations for Z80 target and local label check. gas * config/tc-z80.c: Add new architectures: Z180 and eZ80. Add support for assembler code generated by SDCC. Add new relocation types. Add z80-elf target support. * config/tc-z80.h: Add z80-elf target support. Enable dollar local labels. Local labels starts from ".L". * testsuite/gas/all/fwdexp.d: Fix failure due to symbol conflict. * testsuite/gas/all/fwdexp.s: Likewise. * testsuite/gas/z80/suffix.d: Fix failure on ELF target. * testsuite/gas/z80/z80.exp: Add new tests * testsuite/gas/z80/dollar.d: New file. * testsuite/gas/z80/dollar.s: New file. * testsuite/gas/z80/ez80_adl_all.d: New file. * testsuite/gas/z80/ez80_adl_all.s: New file. * testsuite/gas/z80/ez80_adl_suf.d: New file. * testsuite/gas/z80/ez80_isuf.s: New file. * testsuite/gas/z80/ez80_z80_all.d: New file. * testsuite/gas/z80/ez80_z80_all.s: New file. * testsuite/gas/z80/ez80_z80_suf.d: New file. * testsuite/gas/z80/r800_extra.d: New file. * testsuite/gas/z80/r800_extra.s: New file. * testsuite/gas/z80/r800_ii8.d: New file. * testsuite/gas/z80/r800_z80_doc.d: New file. * testsuite/gas/z80/z180.d: New file. * testsuite/gas/z80/z180.s: New file. * testsuite/gas/z80/z180_z80_doc.d: New file. * testsuite/gas/z80/z80_doc.d: New file. * testsuite/gas/z80/z80_doc.s: New file. * testsuite/gas/z80/z80_ii8.d: New file. * testsuite/gas/z80/z80_ii8.s: New file. * testsuite/gas/z80/z80_in_f_c.d: New file. * testsuite/gas/z80/z80_in_f_c.s: New file. * testsuite/gas/z80/z80_op_ii_ld.d: New file. * testsuite/gas/z80/z80_op_ii_ld.s: New file. * testsuite/gas/z80/z80_out_c_0.d: New file. * testsuite/gas/z80/z80_out_c_0.s: New file. * testsuite/gas/z80/z80_reloc.d: New file. * testsuite/gas/z80/z80_reloc.s: New file. * testsuite/gas/z80/z80_sli.d: New file. * testsuite/gas/z80/z80_sli.s: New file. ld * Makefile.am: Add new target z80-elf * configure.tgt: Likewise. * emultempl/z80.em: Add support for eZ80 and Z180 architectures. * emulparams/elf32z80.sh: New file. * emultempl/z80elf.em: Likewise. * testsuite/ld-z80/arch_ez80_adl.d: Likewise. * testsuite/ld-z80/arch_ez80_z80.d: Likewise. * testsuite/ld-z80/arch_r800.d: Likewise. * testsuite/ld-z80/arch_z180.d: Likewise. * testsuite/ld-z80/arch_z80.d: Likewise. * testsuite/ld-z80/comb_arch_ez80_z80.d: Likewise. * testsuite/ld-z80/comb_arch_z180.d: Likewise. * testsuite/ld-z80/labels.s: Likewise. * testsuite/ld-z80/relocs.s: Likewise. * testsuite/ld-z80/relocs_b_ez80.d: Likewise. * testsuite/ld-z80/relocs_b_z80.d: Likewise. * testsuite/ld-z80/relocs_f_z80.d: Likewise. * testsuite/ld-z80/z80.exp: Likewise. opcodes * z80-dis.c: Add support for eZ80 and Z80 instructions.
2020-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2019-11-07Remove CR16C supportAlan Modra1-0/+2
I think it is past time to remove CR16C support. CR16C was added in 2004, and only for ld. gas and binutils support is lacking, and there have been no commits to bfd/elf32-cr16c.c other than warning fixes or global maintainers making changes to all targets. I see no maintainer listed for CR16C, and no commits from anyone at NSC supporting the target. Furthermore, at the time the CR16 support was added in 2007, config.sub was changed upstream to no longer recognise cr16c as a valid cpu. That means the CR16C ld support is only available as a secondary target by configuring with, for example, --enable-targets=all or --enable-targets=cr16c-unknown-elf. No testing of the CR16C target is possible. include/ * elf/cr16c.h: Delete. bfd/ * cpu-cr16c.c: Delete. * elf32-cr16c.c: Delete. * Makefile.am, * archures.c, * config.bfd, * configure.ac, * reloc.c, * targets.c: Remove cr16c support. * Makefile.in, * bfd-in2.h, * configure, * libbfd.h, * po/SRC-POTFILES.in: Regenerate. ld/ * emulparams/elf32cr16c.sh: Delete. * scripttempl/elf32cr16c.sc: Delete. * Makefile.am, * configure.tgt: Remove cr16c support. * NEWS: Mention removal of cr16c. * Makefile.in, * po/BLD-POTFILES.in: Regenerate.
2019-10-13Update the README-how-to-make-a-release file with a note to reset the ↵Nick Clifton1-2/+0
development flag back to true after making a point release. Aldo fix a typo in the ld/NEWS file. binutils* README-how-to-make-a-release: Add a note to reset the development flag back to true after making a point release. ld * NEWS: Delete superflous "Changes in 2.33" comment.
2019-09-09Add markers for 2.33 branch to NEWS and ChangeLog files.Phil Blundell1-0/+2
2019-06-06[LD, AArch64] Move ELF options behind -zSudakshina Das1-2/+2
This patch moves the current AArch64 ld options of --force-bti and --pac-plt to -z force-bti and -z pac-plt since these are ELF specific options. *** bfd/ChangeLog *** 2019-06-06 Sudakshina Das <sudi.das@arm.com> * bfd-in.h: Change comment. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (elfNN_aarch64_merge_gnu_properties): Update warning. * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Likwise. *** ld/ChangeLog *** 2019-06-06 Sudakshina Das <sudi.das@arm.com> * NEWS: Update options names. * emultempl/aarch64elf.em (OPTION_FORCE_BTI, OPTION_PAC_PLT): Remove. (PARSE_AND_LIST_LONGOPTS): Remove force-bti and pac-plt. (PARSE_AND_LIST_OPTIONS): Update to -z. (PARSE_AND_LIST_ARGS_CASE_Z_AARCH64): New. (PARSE_AND_LIST_ARGS_CASE_Z): Add PARSE_AND_LIST_ARGS_CASE_Z_AARCH64. (PARSE_AND_LIST_ARGS_CASES): Move cases for these options. * testsuite/ld-aarch64/bti-pac-plt-1.d: Update option. * testsuite/ld-aarch64/bti-pac-plt-2.d: Likewise. * testsuite/ld-aarch64/bti-plt-1.d: Likewise. * testsuite/ld-aarch64/bti-plt-2.d: Likewise. * testsuite/ld-aarch64/bti-plt-3.d: Likewise. * testsuite/ld-aarch64/bti-plt-4.d: Likewise. * testsuite/ld-aarch64/bti-plt-6.d: Likewise. * testsuite/ld-aarch64/bti-plt-7.d: Likewise. * testsuite/ld-aarch64/bti-warn.d: Likewise. * testsuite/ld-aarch64/pac-plt-1.d: Likewise. * testsuite/ld-aarch64/pac-plt-2.d: Likewise.
2019-05-21AArch64: Implement choice between Cortex-A53 erratum workarounds. (PR ld/24373)Tamar Christina1-0/+6
The Cortex-A53 erratum currently has two ways it can resolve the erratum when using the flag --fix-cortex-a53-843419: 1) If the address is within the range of an ADR instruction it rewrites the ADRP into an ADR, and those doesn't need the use of a veneer. 2) If the address is not within range, it adds a branch to a veneer which will execute the final bit of the erratum workaround and branch back to the call site. When we do this we always generate the veneers and we always align the size of the text section to 4KB. This is because we only know which workaround we can use after all linking has finished and all addresses are known. This means even though the veneers are not used, we still generate the section and we still change the size of the input section. This is problematic for small memory devices as this would require the user to take about a ~4KB hit in memory even though it's not even used. Since there's no real way to restart the linking process from the final write phase this patch solves the issue by allowing the user more control over which erratum workaround gets used. Concretely this changes the option --fix-cortex-a53-843419 to take optional arguments --fix-cortex-a53-843419[=full|adr|adrp] - full (default): Use both ADRP and ADR workaround. This is equivalent to not specifying any options and is the default behavior before this patch. - adr: Only use the ADR workaround, this will not cause any increase in binary size but linking will fail if the referenced address is out of range of an ADR instruction. - adrp: Use only the ADRP workaround, this will never rewrite your ADRP. In the cases where the user knows how big their binaries are the `adr` option would prevent the unneeded overhead. bfd/ChangeLog: PR ld/24373 * bfd-in.h (enum erratum_84319_opts): New (bfd_elf64_aarch64_set_options, bfd_elf32_aarch64_set_options): Change int to enum erratum_84319_opts. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (struct elf_aarch64_link_hash_table): Change fix_erratum_843419 to use new enum, remove fix_erratum_843419_adr. (_bfd_aarch64_add_stub_entry_after): Conditionally create erratum stub. (aarch64_size_one_stub): Conditionally size erratum 843419 stubs. (_bfd_aarch64_resize_stubs): Amend comment. (elfNN_aarch64_size_stubs): Don't generate stubs when no workaround requested. (bfd_elfNN_aarch64_set_options): Use new fix_erratum_843419 enum. (_bfd_aarch64_erratum_843419_branch_to_stub): Implement selection of erratum workaround. (clear_erratum_843419_entry): Update erratum conditional. ld/ChangeLog: PR ld/24373 * emultempl/aarch64elf.em (PARSE_AND_LIST_LONGOPTS): Add optional args to flags. * NEWS: Add changes to flag. (PARSE_AND_LIST_OPTIONS): Update help descriptions. (PARSE_AND_LIST_ARGS_CASES): Add new options to parser. * testsuite/ld-aarch64/aarch64-elf.exp: Add new run_dump_tests. * testsuite/ld-aarch64/erratum843419-adr.d: New test. * testsuite/ld-aarch64/erratum843419-adrp.d: New test. * testsuite/ld-aarch64/erratum843419-far-adr.d: New test. * testsuite/ld-aarch64/erratum843419-far-full.d: New test. * testsuite/ld-aarch64/erratum843419-far.s: New test. * testsuite/ld-aarch64/erratum843419-full.d: New test. * testsuite/ld-aarch64/erratum843419-near.s: New test. * testsuite/ld-aarch64/erratum843419-no-args.d: New test.
2019-04-11ld: Add --no-print-map-discarded optionFaraz Shahbazker1-0/+2
Add a new option to disable the listing of discarded sections in map file output. The use case stems from a large application built with -ffunction-sections --gc-sections where the list of discarded sections blows up the map file output. The default behaviour remains to print discarded sections, but the new option allows us to disable it. ld/ * NEWS: Mention new option --no-print-map-discarded. * ld.h (ld_config_type) <print_map_discarded>: New field. * ldlang.c (lang_map): Conditionally output discarded sections in map files based on configuration option. * ldlex.h (option_values) <OPTION_PRINT_MAP_DISCARDED, OPTION_NO_PRINT_MAP_DISCARDED>: New. * ldmain.c (main): Enabled print_map_discarded by default. * lexsup.c (ld_options): Add new command-line options. (parse_args) <OPTION_NO_PRINT_MAP_DISCARDED, OPTION_PRINT_MAP_DISCARDED>: New cases. * ld.texi: Document new options. * testsuite/ld-gc/gc.exp: Add new test. * testsuite/ld-gc/skip-map-discarded.s: New file. * testsuite/ld-gc/skip-map-discarded.d: New file. * testsuite/ld-gc/skip-map-discarded.map: New file.
2019-03-13[BFD, LD, AArch64, 3/3] Add --pac-plt to enable PLTs protected with PAC.Sudakshina Das1-0/+2
This is part of the patch series to add support for BTI and PAC in AArch64 linker. 1) This patch adds new definitions of PAC enabled PLTs and both BTI and PAC enabled PLTs. 2) It also defines the new dynamic tag DT_AARCH64_PAC_PLT for the PAC enabled PLTs. 3) This patch adds a new ld command line option: --pac-plt. In the presence of this option, the linker uses the PAC enabled PLTs and marks with DT_AARCH64_PAC_PLT. 4) In case both BTI and PAC are enabled the linker should pick PLTs enabled with both and also use dynamic tags for both. All these are made according to the new AArch64 ELF ABI https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4 *** bfd/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * elfnn-aarch64.c (PLT_PAC_ENTRY_SIZE, PLT_PAC_SMALL_ENTRY_SIZE): New. (PLT_BTI_PAC_ENTRY_SIZE, PLT_BTI_PAC_SMALL_ENTRY_SIZE): New. (setup_plt_values): Account for PAC or PAC and BTI enabled PLTs. (elfNN_aarch64_size_dynamic_sections): Add checks for PLT_BTI_PAC and PLT_PAC_PLT. (elfNN_aarch64_finish_dynamic_sections): Account for PLT_BTI_PAC. (get_plt_type): Add case for DT_AARCH64_PAC_PLT. (elfNN_aarch64_plt_sym_val): Add cases for PLT_BTI_PAC and PLT_PAC. *** binutils/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * readelf.c (get_aarch64_dynamic_type): Add case for DT_AARCH64_PAC_PLT. (dynamic_section_aarch64_val): Likewise. *** include/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * elf/aarch64.h (DT_AARCH64_PAC_PLT): New. *** ld/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * NEWS: Document --pac-plt. * emultempl/aarch64elf.em (OPTION_PAC_PLT): New. (PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add pac-plt. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_PAC_PLT. * testsuite/ld-aarch64/aarch64-elf.exp: Add the following tests. * testsuite/ld-aarch64/bti-pac-plt-1.d: New test. * testsuite/ld-aarch64/bti-pac-plt-2.d: New test. * testsuite/ld-aarch64/pac-plt-1.d: New test. * testsuite/ld-aarch64/pac-plt-2.d: New test. * testsuite/ld-aarch64/bti-plt-1.s: Add .ifndef directive.
2019-03-13[BFD, LD, AArch64, 2/3] Add --force-bti to enable BTI and to select BTI ↵Sudakshina Das1-0/+4
enabled PLTs This is part of the patch series to add support for BTI and PAC in AArch64 linker. 1) This patch adds a new ld command line option: --force-bti. In the presence of this option, the linker enables BTI with the GNU_PROPERTY_AARCH64_FEATURE_1_BTI feature. This gives out warning in case of missing gnu notes for BTI in inputs. 2) It also defines a new set of BTI enabled PLTs. These are used either when all the inputs are marked with GNU_PROPERTY_AARCH64_FEATURE_1_BTI or when the new --force-bti option is used. This required adding new fields in elf_aarch64_link_hash_table so that we could make the PLT related information more generic. 3) It also defines a dynamic tag DT_AARCH64_BTI_PLT. The linker uses this whenever it picks BTI enabled PLTs. All these are made according to the new AArch64 ELF ABI https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4 *** bfd/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> Szabolcs Nagy <szabolcs.nagy@arm.com> * bfd-in.h (aarch64_plt_type, aarch64_enable_bti_type): New. (aarch64_bti_pac_info): New. (bfd_elf64_aarch64_set_options): Add aarch64_bti_pac_info argument. (bfd_elf32_aarch64_set_options): Likewise. * bfd-in2.h: Regenerate * elfnn-aarch64.c (PLT_BTI_ENTRY_SIZE): New. (PLT_BTI_SMALL_ENTRY_SIZE, PLT_BTI_TLSDESC_ENTRY_SIZE): New. (elfNN_aarch64_small_plt0_bti_entry): New. (elfNN_aarch64_small_plt_bti_entry): New. (elfNN_aarch64_tlsdesc_small_plt_bti_entry): New. (elf_aarch64_obj_tdata): Add no_bti_warn and plt_type fields. (elf_aarch64_link_hash_table): Add plt0_entry, plt_entry and tlsdesc_plt_entry_size fields. (elfNN_aarch64_link_hash_table_create): Initialise the new fields. (setup_plt_values): New helper function. (bfd_elfNN_aarch64_set_options): Use new bp_info to set plt sizes and bti enable type. (elfNN_aarch64_allocate_dynrelocs): Use new size members instead of fixed macros. (elfNN_aarch64_size_dynamic_sections): Likewise and add checks. (elfNN_aarch64_create_small_pltn_entry): Use new generic pointers to plt stubs instead of fixed ones and update filling them according to the need for bti. (elfNN_aarch64_init_small_plt0_entry): Likewise. (elfNN_aarch64_finish_dynamic_sections): Likewise. (get_plt_type, elfNN_aarch64_get_synthetic_symtab): New. (elfNN_aarch64_plt_sym_val): Update size accordingly. (elfNN_aarch64_link_setup_gnu_properties): Set up plts if BTI GNU NOTE is set. (bfd_elfNN_get_synthetic_symtab): Define. (elfNN_aarch64_merge_gnu_properties): Give out warning with --force-bti and mising BTI NOTE SECTION. *** binutils/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> Szabolcs Nagy <szabolcs.nagy@arm.com> * readelf.c (get_aarch64_dynamic_type): New. (get_dynamic_type): Use above for EM_AARCH64. (dynamic_section_aarch64_val): New. (process_dynamic_section): Use above for EM_AARCH64. *** include/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> Szabolcs Nagy <szabolcs.nagy@arm.com> * elf/aarch64.h (DT_AARCH64_BTI_PLT): New. *** ld/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> Szabolcs Nagy <szabolcs.nagy@arm.com> * NEWS: Document --force-bti. * emultempl/aarch64elf.em (plt_type, bti_type, OPTION_FORCE_BTI): New. (PARSE_AND_LIST_SHORTOPTS, PARSE_AND_LIST_OPTIONS): Add force-bti. (PARSE_AND_LIST_ARGS_CASES): Handle OPTION_FORCE_BTI. * testsuite/ld-aarch64/aarch64-elf.exp: Add all the tests below. * testsuite/ld-aarch64/bti-plt-1.d: New test. * testsuite/ld-aarch64/bti-plt-1.s: New test. * testsuite/ld-aarch64/bti-plt-2.s: New test. * testsuite/ld-aarch64/bti-plt-2.d: New test. * testsuite/ld-aarch64/bti-plt-3.d: New test. * testsuite/ld-aarch64/bti-plt-4.d: New test. * testsuite/ld-aarch64/bti-plt-5.d: New test. * testsuite/ld-aarch64/bti-plt-6.d: New test. * testsuite/ld-aarch64/bti-plt-7.d: New test. * testsuite/ld-aarch64/bti-plt-so.s: New test. * testsuite/ld-aarch64/bti-plt.ld: New test.
2019-03-13[BFD, LD, AArch64, 1/3] Add support for GNU PROPERTIES in AArch64 for BTI ↵Sudakshina Das1-0/+10
and PAC This is part of the patch series to add support for BTI and PAC in AArch64 linker. This patch implements the following: 1) This extends in the gnu property support in the linker for AArch64 by defining backend hooks for elf_backend_setup_gnu_properties, elf_backend_merge_gnu_properties and elf_backend_parse_gnu_properties. 2) It defines AArch64 specific GNU property GNU_PROPERTY_AARCH64_FEATURE_1_AND and 2 bit for BTI and PAC in it. 3) It also adds support in readelf.c to read and print these new GNU properties in AArch64. All these are made according to the new AArch64 ELF ABI https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4 *** bfd/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * elf-properties.c (_bfd_elf_link_setup_gnu_properties): Exclude linker created inputs from merge. * elfnn-aarch64.c (struct elf_aarch64_obj_tdata): Add field for GNU_PROPERTY_AARCH64_FEATURE_1_AND properties. (elfNN_aarch64_link_setup_gnu_properties): New. (elfNN_aarch64_merge_gnu_properties): New. (elf_backend_setup_gnu_properties): Define for AArch64. (elf_backend_merge_gnu_properties): Likewise. * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Define. (_bfd_aarch64_elf_parse_gnu_properties): Define. (_bfd_aarch64_elf_merge_gnu_properties): Define. * elfxx-aarch64.h (_bfd_aarch64_elf_link_setup_gnu_properties): Declare. (_bfd_aarch64_elf_parse_gnu_properties): Declare. (_bfd_aarch64_elf_merge_gnu_properties): Declare. (elf_backend_parse_gnu_properties): Define for AArch64. *** binutils/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * readelf.c (decode_aarch64_feature_1_and): New. (print_gnu_property_note): Add case for AArch64 gnu notes. *** include/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * elf/common.h (GNU_PROPERTY_AARCH64_FEATURE_1_AND): New. (GNU_PROPERTY_AARCH64_FEATURE_1_BTI): New. (GNU_PROPERTY_AARCH64_FEATURE_1_PAC): New. *** ld/ChangeLog *** 2019-03-13 Sudakshina Das <sudi.das@arm.com> * NEWS: Document GNU_PROPERTY_AARCH64_FEATURE_1_BTI and GNU_PROPERTY_AARCH64_FEATURE_1_PAC. * testsuite/ld-aarch64/aarch64-elf.exp: Add run commands for new tests. * testsuite/ld-aarch64/property-bti-pac1.d: New test. * testsuite/ld-aarch64/property-bti-pac1.s: New test. * testsuite/ld-aarch64/property-bti-pac2.d: New test. * testsuite/ld-aarch64/property-bti-pac2.s: New test. * testsuite/ld-aarch64/property-bti-pac3.d: New test.
2019-01-31Document ld -t behaviourAlan Modra1-0/+6
* NEWS: Mention -t change. * ld.texi (--trace/-t): Expand documentation a little.
2019-01-19Change version to 2.32.51 and regenerate configure and pot files.Nick Clifton1-0/+2
2019-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2018-12-07elf: Report property change when merging propertiesH.J. Lu1-0/+2
With merging properties, report property change in linker map file, like Merging program properties Removed property 0xc0010000 to merge /usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o (0x0) and /usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crti.o (0x0) Removed property 0xc0000002 to merge /usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o (0x3) and x.o (not found) Removed property 0xc0000000 to merge /usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o (not found) and /usr/lib64/libc_nonshared.a(elf-init.oS) (0x0) Removed property 0xc0000001 to merge /usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o (not found) and /usr/lib64/libc_nonshared.a(elf-init.oS) (0x0) bfd/ * elf-properties.c (elf_find_and_remove_property): Add a bfd_boolean argument to indicate if the property should be removed. (elf_merge_gnu_property_list): Updated. Report property change in linker map file. (elf_get_gnu_property_section_size): Skip property_remove properties. (elf_write_gnu_properties): Likewise. (_bfd_elf_link_setup_gnu_properties): Report property merge in linker map file. Pass abfd to elf_merge_gnu_property_list. include/ * bfdlink.h (bfd_link_info): Add has_map_file. ld/ * NEWS: Updated for property change report. * ld.texi: Document property change report. * ldmain.c (main): Set link_info.has_map_file to TRUE when linker map file is used. * testsuite/ld-scripts/rgn-over1.d: Updated. * testsuite/ld-scripts/rgn-over2.d: Likewise. * testsuite/ld-scripts/rgn-over3.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/rgn-over7.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Check linker map file. * testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a.map: New file.
2018-07-30Add support for the C_SKY series of processors.Andrew Jenner1-0/+2
This patch series is a new binutils port for C-SKY processors, including support for both the V1 and V2 processor variants. V1 is derived from the MCore architecture while V2 is substantially different, with mixed 16- and 32-bit instructions, a larger register set, a different (but overlapping) ABI, etc. There is support for bare-metal ELF targets and Linux with both glibc and uClibc. This code is being contributed jointly by C-SKY Microsystems and Mentor Graphics. C-SKY is responsible for the technical content and has proposed Lifang Xia and Yunhai Shang as port maintainers. (Note that C-SKY does have a corporate copyright assignment on file with the FSF.) Mentor Graphics' role has been cleaning up the code, adding documentation and additional test cases, etc, to address issues we anticipated reviewers would complain about. bfd * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add C-SKY. (BFD32_BACKENDS, BFD_BACKENDS_CFILES): Likewise. * Makefile.in: Regenerated. * archures.c (enum bfd_architecture): Add bfd_arch_csky and related bfd_mach defines. (bfd_csky_arch): Declare. (bfd_archures_list): Add C-SKY. * bfd-in.h (elf32_csky_build_stubs): Declare. (elf32_csky_size_stubs): Declare. (elf32_csky_next_input_section: Declare. (elf32_csky_setup_section_lists): Declare. * bfd-in2.h: Regenerated. * config.bfd: Add C-SKY. * configure.ac: Likewise. * configure: Regenerated. * cpu-csky.c: New file. * elf-bfd.h (enum elf_target_id): Add C-SKY. * elf32-csky.c: New file. * libbfd.h: Regenerated. * reloc.c: Add C-SKY relocations. * targets.c (csky_elf32_be_vec, csky_elf32_le_vec): Declare. (_bfd_target_vector): Add C-SKY target vector entries. binutils* readelf.c: Include elf/csky.h. (guess_is_rela): Handle EM_CSKY. (dump_relocations): Likewise. (get_machine_name): Likewise. (is_32bit_abs_reloc): Likewise. include * dis-asm.h (csky_symbol_is_valid): Declare. * opcode/csky.h: New file. opcodes * Makefile.am (TARGET_LIBOPCODES_CFILES): Add csky-dis.c. * Makefile.in: Regenerated. * configure.ac: Add C-SKY. * configure: Regenerated. * csky-dis.c: New file. * csky-opc.h: New file. * disassemble.c (ARCH_csky): Define. (disassembler, disassemble_init_for_target): Add case for ARCH_csky. * disassemble.h (print_insn_csky, csky_get_disassembler): Declare. gas * Makefile.am (TARGET_CPU_CFILES): Add entry for C-SKY. (TARGET_CPU_HFILES, TARGET_ENV_HFILES): Likewise. * Makefile.in: Regenerated. * config/tc-csky.c: New file. * config/tc-csky.h: New file. * config/te-csky_abiv1.h: New file. * config/te-csky_abiv1_linux.h: New file. * config/te-csky_abiv2.h: New file. * config/te-csky_abiv2_linux.h: New file. * configure.tgt: Add C-SKY. * doc/Makefile.am (CPU_DOCS): Add entry for C-SKY. * doc/Makefile.in: Regenerated. * doc/all.texi: Set CSKY feature. * doc/as.texi (Overview): Add C-SKY options. (Machine Dependencies): Likewise. * doc/c-csky.texi: New file. * testsuite/gas/csky/*: New test cases. ld * Makefile.am (ALL_EMULATION_SOURCES): Add C-SKY emulations. (ecskyelf.c, ecskyelf_linux.c): New rules. * Makefile.in: Regenerated. * configure.tgt: Add C-SKY. * emulparams/cskyelf.sh: New file. * emulparams/cskyelf_linux.sh: New file. * emultempl/cskyelf.em: New file. * gen-doc.texi: Add C-SKY. * ld.texi: Likewise. (Options specific to C-SKY targets): New section. * testsuite/ld-csky/*: New tests.
2018-07-02Fix use of "command line X" in binutils docThomas Preud'homme1-14/+14
Binutils documentation uses a mix of spelling for the compound word "command-line X". According to [1]: "Sometimes compound words are written separately (nail polish), sometimes with a hyphen (short-sighted) and sometimes as one word (eyelashes). Often new compounds are written as two separate words and, as they become more familiar, they are either connected with a hyphen (-) or made into one word." I think command-line X is common enough in our industry that the two workds command and line should be connected. Since command-line is more common than commandline, I propose to update binutils documentation to consistently use "command-line" when this is used as an adjective to a noun (eg. command-line argument, command-line switch, command-line option and command-line flag). I've left occurences of "the command line" as is. I've also left gdb, sim and readline alone and have only touched public documentation (texi and NEWS files). [1] http://dictionary.cambridge.org/grammar/british-grammar/word-formation/compounds 2018-07-02 Thomas Preud'homme <thomas.preudhomme@arm.com> bfd/ * doc/bfdint.texi: Use command-line consistently when used in a compount word. * doc/bfdsumm.texi: Likewise. binutils/ * NEWS: Use command-line consistently when used in a compount word. * doc/binutils.texi: Likewise and fix trailing whitespace on same line. gas/ * NEWS: Use command-line consistently when used in a compount word. * doc/as.texi: Likewise. * doc/c-aarch64.texi: Likewise. * doc/c-alpha.texi: Likewise. * doc/c-arc.texi: Likewise. * doc/c-arm.texi: Likewise. * doc/c-avr.texi: Likewise. * doc/c-bfin.texi: Likewise. * doc/c-cris.texi: Likewise. * doc/c-epiphany.texi: Likewise. * doc/c-i386.texi: Likewise. * doc/c-ia64.texi: Likewise. * doc/c-lm32.texi: Likewise. * doc/c-m32r.texi: Likewise. * doc/c-m68k.texi: Likewise. * doc/c-mips.texi: Likewise. * doc/c-mmix.texi: Likewise. * doc/c-msp430.texi: Likewise. * doc/c-mt.texi: Likewise. * doc/c-nios2.texi: Likewise. * doc/c-ppc.texi: Likewise. * doc/c-pru.texi: Likewise. * doc/c-rl78.texi: Likewise. * doc/c-rx.texi: Likewise. * doc/c-tic6x.texi: Likewise. * doc/c-v850.texi: Likewise. * doc/c-vax.texi: Likewise. * doc/c-visium.texi: Likewise. * doc/c-xstormy16.texi: Likewise. * doc/c-xtensa.texi: Likewise. * doc/c-z80.texi: Likewise. * doc/c-z8k.texi: Likewise. * doc/internals.texi: Likewise. gprof/ * gprof.texi: Use command-line consistently when used in a compount word. ld/ * NEWS: Use command-line consistently when used in a compount word. * ld.texinfo: Likewise. * ldint.texinfo: Likewise.
2018-06-24Add 2.30 branch notes to ChangeLogs and NEWS files.Nick Clifton1-0/+2
2018-04-04Add blurb about linker changes for Cygwin and Mingw targets.Eric Botcazou1-0/+2
2018-02-27ld: Add --enable-separate-codeH.J. Lu1-0/+5
This patch adds --enable-separate-code to ld configure to turn on -z separate-code by default and enables it by default for Linux/x86. This avoids mixing code pages with data to improve cache performance as well as security. To reduce x86-64 executable and shared object sizes, the maximum page size is reduced from 2MB to 4KB when -z separate-code is turned on by default. Note: -z max-page-size= can be used to set the maximum page size. We compared SPEC CPU 2017 performance before and after this change on Skylake server. There are no any significant performance changes. Everything is mostly below +/-1%. bfd/ * config.in: Regenerated. * configure: Likewise. * configure.ac: Add --enable-separate-code. (DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED. Default to 1 for Linux/x86 targets, * elf64-x86-64.c (ELF_MAXPAGESIZE): Set to 0x1000 if DEFAULT_LD_Z_SEPARATE_CODE is 1. ld/ * NEWS: Mention --enable-separate-code. * configure.ac: Add --enable-separate-code. (DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED. * configure.tgt: Default ac_default_ld_z_separate_code to 1 for Linux/x86 targets. * config.in: Regenerated. * configure: Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set link_info.separate_code DEFAULT_LD_Z_SEPARATE_CODE.
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