Commit Graph

261 Commits

Author SHA1 Message Date
Nick Clifton
0bd0932314 Add markers for 2.39 branch 2022-07-08 10:41:07 +01:00
Luca Boccassi
9e2bb0cb5e ld: add --package-metadata
Generate a .note.package FDO package metadata ELF note, following
the spec: https://systemd.io/ELF_PACKAGE_METADATA/

If the jansson library is available at build time (and it is explicitly
enabled), link ld to it, and use it to validate that the input is
correct JSON, to avoid writing garbage to the file. The
configure option --enable-jansson has to be used to explicitly enable
it (error out when not found). This allows bootstrappers (or others who
are not interested) to seamlessly skip it without issues.
2022-05-26 12:56:12 +09:30
Nick Clifton
ba951afb99 Add a linker warning when creating potentially dangerous executable segments. Add tests, options to disabke and configure switches to choose defaults. 2022-05-03 11:42:24 +01:00
Nick Clifton
65daf5bed6 Add linker warning for when it creates an executable stack.
PR 29072
2022-04-20 13:39:05 +01:00
Jan Beulich
f1a4558586 x86: mention dropped L1OM/K1OM support in ld/ as well
This amends e961c696dc ("x86: drop L1OM/K1OM support from ld"). Also
remove the marker that I mistakenly added in c085ab00c7 ("x86: drop
L1OM/K1OM support from gas").
2022-03-24 15:27:28 +01:00
Fangrui Song
c212f39d9a ld: Support customized output section type
bfd/
    PR ld/28841
    * bfd-in2.h (struct bfd_section): Add type.
    (discarded_section): Add field.
    * elf.c (elf_fake_sections): Handle bfd_section::type.
    * section.c (BFD_FAKE_SECTION): Add field.
    * mri.c (mri_draw_tree): Update function call.

ld/
    PR ld/28841
    * ld.texi: Document new output section type.
    * ldlex.l: Add new token TYPE.
    * ldgram.y: Handle TYPE=exp.
    * ldlang.h: Add type_section to list of section types.
    * ldlang.c (lang_add_section): Handle type_section.
    (map_input_to_output_sections): Handle type_section.
    * testsuite/ld-scripts/output-section-types.t: Add tests.
    * testsuite/ld-scripts/output-section-types.d: Update.
2022-02-16 17:41:23 +00:00
Nick Clifton
a74e1cb344 Add markers for 2.38 branch 2022-01-22 12:08:55 +00:00
H.J. Lu
6a91be8666 ld: Initial DT_RELR support
Add a -z pack-relative-relocs option to enable DT_RELR and create a
relr.dyn section for DT_RELR.  DT_RELR is implemented with the linker
relaxation infrastructure, but it doesn't require the --relax option
enabled.  -z pack-relative-relocs implies -z combreloc.  -z nocombreloc
implies -z nopack-relative-relocs.

-z pack-relative-relocs is chosen over the similar option in lld,
--pack-dyn-relocs=relr, to implement a glibc binary lockout mechanism
with a special glibc version symbol, to avoid random crashes of DT_RELR
binaries with the existing glibc binaries.

bfd/

	* elf-bfd.h (elf_link_hash_table): Add srelrdyn.
	* elflink.c (_bfd_elf_link_create_dynamic_sections): Create a
	.relr.dyn section for DT_RELR.

include/

	* bfdlink.h (bfd_link_info): Add enable_dt_relr.

ld/

	* News: Mention -z pack-relative-relocs and
	-z nopack-relative-relocs.
	* ld.texi: Document -z pack-relative-relocs and
	-z nopack-relative-relocs.
	* ldelf.c (ldelf_after_parse): Disable DT_RELR if not building
	PIE nor shared library.  Add 3 spare dynamic tags for DT_RELR,
	DT_RELRSZ and DT_RELRENT.
	* ldlang.c (lang_relax_sections): Also enable relaxation if
	DT_RELR is enabled.
	* emulparams/elf32_x86_64.sh: Source dt-relr.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/dt-relr.sh: New file.
	* scripttempl/elf.sc: Support .relr.dyn.
2022-01-12 06:04:29 -08:00
Alan Modra
a2c5833233 Update year range in copyright notice of binutils files
The result of running etc/update-copyright.py --this-year, fixing all
the files whose mode is changed by the script, plus a build with
--enable-maintainer-mode --enable-cgen-maint=yes, then checking
out */po/*.pot which we don't update frequently.

The copy of cgen was with commit d1dd5fcc38ead reverted as that commit
breaks building of bfp opcodes files.
2022-01-02 12:04:28 +10:30
liuzhensong
560b3fe208 LoongArch ld support
2021-10-22  Chenghua Xu  <xuchenghua@loongson.cn>
	    Zhensong Liu  <liuzhensong@loongson.cn>
	    Weinan Liu  <liuweinan@loongson.cn>
	    Xiaolin Tang  <tangxiaolin@loongson.cn>

ld/
	* Makefile.am: Add LoongArch.
	* NEWS: Mention LoongArch support.
	* configure.tgt: Add LoongArch.
	* emulparams/elf32loongarch-defs.sh: New.
	* emulparams/elf32loongarch.sh: Likewise.
	* emulparams/elf64loongarch-defs.sh: Likewise.
	* emulparams/elf64loongarch.sh: Likewise.
	* emultempl/loongarchelf.em: Likewise.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
ld/testsuite/
	* ld-loongarch-elf/disas-jirl.d: New.
	* ld-loongarch-elf/disas-jirl.s: Likewise.
	* ld-loongarch-elf/jmp_op.d: Likewise.
	* ld-loongarch-elf/jmp_op.s: Likewise.
	* ld-loongarch-elf/ld-loongarch-elf.exp: Likewise.
	* ld-loongarch-elf/macro_op.d: Likewise.
	* ld-loongarch-elf/macro_op.s: Likewise.
	* ld-loongarch-elf/syscall-0.s: Likewise.
	* ld-loongarch-elf/syscall-1.s: Likewise.
	* ld-loongarch-elf/syscall.d: Likewise.
	* ld-srec/srec.exp: Add LoongArch.
	* ld-unique/pr21529.d: Likewise.
2021-10-24 21:36:32 +10:30
H.J. Lu
d66aeea93d ld/NEWS: Clarify -z [no]indirect-extern-access
-z [no]indirect-extern-access are only for x86 ELF linker.
2021-07-09 07:36:42 -07:00
H.J. Lu
6f365fda85 elf: Add GNU_PROPERTY_1_NEEDED check
If GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS is set on any input
relocatable files:

1. Don't generate copy relocations.
2. Turn off extern_protected_data since it implies
GNU_PROPERTY_NO_COPY_ON_PROTECTED.
3. Treate reference to protected symbols with indirect external access
as local.
4. Set GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS on output.
5. When generating executable, clear this bit when there are non-GOT or
non-PLT relocations in input relocatable files without the bit set.
6. Add -z [no]indirect-extern-access to control indirect external access.

bfd/

	* elf-bfd (elf_obj_tdata): Add has_indirect_extern_access.
	(elf_has_indirect_extern_access): New.
	* elf-properties.c (_bfd_elf_parse_gnu_properties): Set
	elf_has_indirect_extern_access and elf_has_no_copy_on_protected
	when seeing GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS.
	(elf_write_gnu_propertie): Add an argument to pass link_info.
	Set needed_1_p for GNU_PROPERTY_1_NEEDED in memory.
	(_bfd_elf_link_setup_gnu_properties): Handle
	GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS for
	-z indirect-extern-access.  Set nocopyreloc to true and
	extern_protected_data to false for indirect external access.
	(_bfd_elf_convert_gnu_properties): Updated.
	* elf32-i386.c (elf_i386_check_relocs): Set
	non_got_ref_without_indirect_extern_access on legacy non-GOT or
	non-PLT references.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	* elflink.c (_bfd_elf_symbol_refs_local_p): Return true for
	STV_PROTECTED symbols with indirect external access.
	* elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Clear
	indirect_extern_access for legacy non-GOT/non-PLT references.
	* elfxx-x86.h (elf_x86_link_hash_entry): Add
	non_got_ref_without_indirect_extern_access.

include/

	* bfdlink.h (bfd_link_info): Add indirect_extern_access and
	needed_1_p.  Change nocopyreloc to int.

ld/

	* NEWS: Mention -z [no]indirect-extern-access
	* ld.texi: Document -z [no]indirect-extern-access
	* ldmain.c (main): Initialize link_info.indirect_extern_access
	to -1.
	* emulparams/extern_protected_data.sh: Support
	-z [no]indirect-extern-access.
	* testsuite/ld-elf/indirect-extern-access-1.rd: New file
	* testsuite/ld-elf/indirect-extern-access-1a.c: Likewise.
	* testsuite/ld-elf/indirect-extern-access-1b.c: Likewise.
	* testsuite/ld-elf/indirect-extern-access-2.rd: Likewise.
	* testsuite/ld-elf/indirect-extern-access-2a.c: Likewise.
	* testsuite/ld-elf/indirect-extern-access-2b.c: Likewise.
	* testsuite/ld-elf/indirect-extern-access-3.rd: Likewise.
	* testsuite/ld-elf/indirect-extern-access.S: Likewise.
	* testsuite/ld-elf/property-1_needed-1b.d: Likewise.
	* testsuite/ld-elf/property-1_needed-1c.d: Likewise.
	* testsuite/ld-x86-64/indirect-extern-access.rd: Likewise.
	* testsuite/ld-x86-64/protected-data-1.h: Likewise.
	* testsuite/ld-x86-64/protected-data-1a.c: Likewise.
	* testsuite/ld-x86-64/protected-data-1b.c: Likewise.
	* testsuite/ld-x86-64/protected-data-2a.S: Likewise.
	* testsuite/ld-x86-64/protected-data-2b.S: Likewise.
	* testsuite/ld-x86-64/protected-func-2a.S: Likewise.
	* testsuite/ld-x86-64/protected-func-2b.S: Likewise.
	* testsuite/ld-x86-64/protected-func-2c.c: Likewise.
	* testsuite/ld-elf/linux-x86.exp: Run test with
	GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS.
	* testsuite/ld-x86-64/x86-64.exp: Run tests for protected
	function and data with indirect external access.
2021-07-08 18:14:31 -07:00
H.J. Lu
a8dde0a211 ld: Limit cache size and add --max-cache-size=SIZE
When link_info.keep_memory is true, linker caches the relocation
information and symbol tables of input files in memory.  When there
are many input files with many relocations, we may run out of memory.
Add --max-cache-size=SIZE to set the maximum cache size.

bfd/

	PR ld/18028
	* bfd.c (bfd): Add alloc_size.
	* elf-bfd.h (_bfd_elf_link_info_read_relocs): New.
	* elf32-i386.c (elf_i386_check_relocs): Use _bfd_link_keep_memory.
	Update cache_size.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	* elflink.c (_bfd_elf_link_read_relocs): Renamed to ...
	(_bfd_elf_link_info_read_relocs): This.  Update cache_size.
	(_bfd_elf_link_read_relocs): New.
	(_bfd_elf_link_check_relocs): Call _bfd_elf_link_info_read_relocs
	instead of _bfd_elf_link_read_relocs.
	(elf_link_add_object_symbols): Likewise.
	(elf_link_input_bfd): Likewise.
	(init_reloc_cookie_rels): Likewise.
	(init_reloc_cookie): Update cache_size.  Call
	_bfd_elf_link_info_read_relocs instead of
	_bfd_elf_link_read_relocs.
	(link_info_ok): New.
	(elf_gc_smash_unused_vtentry_relocs): Updated.  Call
	_bfd_elf_link_info_read_relocs instead of
	_bfd_elf_link_read_relocs.
	(bfd_elf_gc_sections): Use link_info_ok.  Pass &link_info_ok
	to elf_gc_smash_unused_vtentry_relocs.
	* libbfd-in.h (_bfd_link_keep_memory): New.
	* linker.c (_bfd_link_keep_memory): New.
	* opncls.c (bfd_alloc): Update alloc_size.
	* bfd-in2.h: Regenerated.
	* libbfd.h: Likewise.

include/

	PR ld/18028
	* bfdlink.h (bfd_link_info): Add cache_size and max_cache_size.

ld/

	PR ld/18028
	* NEWS: Mention --max-cache-size=SIZE.
	* ld.texi: Document --max-cache-size=SIZE.
	* ldlex.h (option_values): Add OPTION_MAX_CACHE_SIZE.
	* ldmain.c: (main): Set link_info.max_cache_size to -1.
	* lexsup.c (ld_options): Add --max-cache-size=SIZE.
	(parse_args): Support OPTION_MAX_CACHE_SIZE.
	* testsuite/ld-bootstrap/bootstrap.exp: Add test for
	--max-cache-size=-1.
2021-07-08 09:59:28 -07:00
Nick Clifton
514192487e Add markers for 2.37 branch 2021-07-03 14:50:57 +01:00
Fangrui Song
cf893b0ef7 ld: Add -Bno-symbolic
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.
2021-05-13 12:53:49 +09:30
Alan Modra
8ee10e8609 PR27451, -z start_stop_gc
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.
2021-03-01 17:28:03 +10:30
Alan Modra
933feaf37e Re: Remove arm-symbianelf
gas/
	* NEWS: Mention arm-symbianelf removal.
ld/
	* NEWS: Mention arm-symbianelf removal.
2021-02-11 07:22:20 +10:30
H.J. Lu
68b007788a ld/x86: Add -z report-relative-reloc
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.
2021-01-15 18:07:07 -08:00
Nick Clifton
055bc77a80 Add Changelog entries and NEWS entries for 2.36 branch 2021-01-09 10:40:28 +00:00
Alan Modra
250d07de5c Update year range in copyright notice of binutils files 2021-01-01 10:31:05 +10:30
H.J. Lu
279d901e5a x86-64: Add Intel LAM property support
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.
2020-12-23 13:00:55 -08:00
Howard Chu
bf6d803782 Add a plugin for processing static library dependencies.
* 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.
2020-12-14 14:26:11 +00:00
Jozef Lawrynowicz
99fabbc973 Support SHF_GNU_RETAIN ELF section flag
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.
2020-11-18 11:51:13 +00:00
H.J. Lu
b0ab069373 x86: Support GNU_PROPERTY_X86_ISA_1_BASELINE marker
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.
2020-10-30 06:50:10 -07:00
Nick Clifton
23ae20f5e3 Add a new option to the linker: --error-handling-script=<NAME>. Run the 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.
2020-10-16 11:37:26 +01:00
H.J. Lu
32930e4edb x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker
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.
2020-10-09 05:13:26 -07:00
H.J. Lu
496afd1705 elf: Add -z unique-symbol to avoid duplicated local symbol names
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.
2020-09-12 05:37:43 -07:00
Jeremy Drake
514b4e191d Change the default characteristics of DLLs built by the linker to more 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.
2020-08-27 12:58:27 +01:00
Nick Alcock
5dba6f05b7 ld: new options --ctf-variables and --ctf-share-types
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.
2020-07-22 18:03:57 +01:00
Nick Clifton
b115b9fd3c Add markers for binutils 2.35 branch 2020-07-04 10:16:22 +01:00
H.J. Lu
bbd19b19e4 Remove x86 NaCl target support
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.
2020-06-30 08:56:14 -07:00
Roland McGrath
f37b21b481 PR 22843: ld, gold: Add --dependency-file option.
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.
2020-06-23 12:01:24 -07:00
Roland McGrath
cae64165f4 gold, ld: Implement -z start-stop-visibility=... option.
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.
2020-06-15 11:45:02 -07:00
Fangrui Song
37a141bfed ld: Add --export-dynamic-symbol and --export-dynamic-symbol-list
--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.
2020-06-03 06:37:39 -07:00
H.J. Lu
6f028f3c07 ld: Mention --enable-textrel-check=yes is default for Linux/x86 targets
* NEWS: Mention --enable-textrel-check=yes is default for
	Linux/x86 targets.
2020-05-28 04:38:05 -07:00
H.J. Lu
b32632c499 ld: Add --enable-textrel-check=[no|yes|warning|error]
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.
2020-05-28 04:21:16 -07:00
Nick Clifton
72a3b182e1 Linker: Remove support for -Map= with an empty argument.
* 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.
2020-05-28 10:51:29 +01:00
Nick Clifton
198204a7f0 [PATCH] allow empty string as argument to -Map
* 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.
2020-05-27 17:49:17 +01:00
H.J. Lu
a6dbf402de ld: Add --warn-textrel and obsolete --warn-shared-textrel
--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.
2020-05-27 04:54:10 -07:00
Fangrui Song
161719466a For relative paths in INPUT() and GROUP(), search the directory of the 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.
2020-04-22 16:20:02 +01:00
Stephen Casner
fa1477dc34 Fixes for the magic number used in PDP11 AOUT binaries.
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.
2020-04-14 14:41:27 +01:00
Christophe Lyon
abf874aafe Add support for non-contiguous memory regions
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.
2020-03-13 14:44:45 +00:00
Alan Modra
7b3c27152b PR25585, PHDR segment not covered by LOAD segment
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.
2020-02-22 12:53:52 +10:30
Nick Clifton
ae77468624 Add markers for 2.34 branch to the NEWS files and ChangeLogs. 2020-01-18 13:50:25 +00:00
Sergey Belyashov
6655dba246 Add support for the GBZ80, Z180, and eZ80 variants of the Z80 architecure. 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.
2020-01-02 14:14:59 +00:00
Alan Modra
b3adc24a07 Update year range in copyright notice of binutils files 2020-01-01 18:42:54 +10:30
Alan Modra
595d3787e9 Remove CR16C support
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.
2019-11-07 20:09:20 +10:30
Nick Clifton
4786fbf372 Update the README-how-to-make-a-release file with a note to reset the 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.
2019-10-13 13:33:27 +01:00
Phil Blundell
60391a255b Add markers for 2.33 branch to NEWS and ChangeLog files. 2019-09-09 10:27:40 +01:00
Sudakshina Das
8bf6d176b0 [LD, AArch64] Move ELF options behind -z
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.
2019-06-06 12:21:14 +01:00