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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.
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* 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.
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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.
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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.
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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.
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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.
|
|
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.
|
|
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.
|
|
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.
|
|
|
|
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.
|
|
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.
|
|
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.
|
|
--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.
|
|
* NEWS: Mention --enable-textrel-check=yes is default for
Linux/x86 targets.
|
|
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.
|
|
* 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.
|
|
* 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.
|
|
--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.
|
|
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.
|
|
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.
|
|
2020-01-06 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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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* NEWS: Mention -t change.
* ld.texi (--trace/-t): Expand documentation a little.
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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.
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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.
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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.
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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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binutils/
* NEWS: Add marker for 2.30.
gas/
* NEWS: Add marker for 2.30.
ld/
* NEWS: Add marker for 2.30.
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Currently we have no obvious way to revert the action of the "-z defs"
command line option. The "--unresolved-symbols=ignore-in-object-files"
does pretty much what is needed, but it is non-obvious and it also
touches the setting for reporting unresolved symbol references from
shared libraries. So I am proposing adding a "-z undefs" option to be
the inverse of "-z defs". (I thought that "-z nodefs" might be
confusing since it implies banning all definitions, rather than
allowing them).
In addition the description of the "-z defs" option in the linker
documentation is misleading in one place, where it says:
'defs'
Disallows undefined symbols in object files. Undefined
symbols in shared libraries are still allowed.
whereas later on it gets it right:
'-z defs'
Report unresolved symbol references from regular object files.
This is done even if the linker is creating a non-symbolic shared
library. The switch '--[no-]allow-shlib-undefined' controls the
behaviour for reporting unresolved references found in shared
libraries being linked in.
* emultempl/elf32.em (_handle_option): Add support for "-z undefs"
as the opposite of "-z defs".
* ld.texinfo: Document the new option. Update the description of
the -z defs option to make it clear that it does generate an error
if an undefined symbol reference is found in an object file whilst
creating a shared library.
* NEWS: Document this new feature.
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The new "-z separate-code" option will generate separate code LOAD
segment which must be in wholly disjoint pages from any other data.
include/
PR ld/22393
* bfdlink.h (bfd_link_info): Add separate_code.
ld/
PR ld/22393
* NEWS: Mention "-z separate-code".
* emultempl/elf32.em (gld${EMULATION_NAME}_get_script): Get
builtin linker scripts and return linker scripts from disk for
"-z separate-code".
(gld${EMULATION_NAME}_handle_option): Handle "-z separate-code"
and "-z noseparate-code".
* genscripts.sh: Generate linker scripts for "-z separate-code".
(LD_FLAG): Set to *textonly for "-z separate-code".
* ld.texinfo: Document "-z separate-code".
* lexsup.c (elf_shlib_list_options): Add linker help messsages
for "-z separate-code" and "-z noseparate-code".
* scripttempl/elf.sc (SEPARATE_TEXT): New
(TEXT_SEGMENT_ALIGN): Likewise.
Use ${TEXT_SEGMENT_ALIGN} to align and pad text segment to
${MAXPAGESIZE}.
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