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binutils-gdb/bfd/ChangeLog
Maciej W. Rozycki 8b10b0b3e1 MIPS: Add options to control branch ISA checks 
Complement commit 9d862524f6 ("MIPS: Verify the ISA mode and alignment
of branch and jump targets") and add GAS and LD options to control the
checks for invalid branches between ISA modes introduced there, to help
with some handwritten code lacking `.insn' annotation for labels used as
branch targets and code produced by older versions of GCC which suffers
from the issue with branches to code that has been optimized away,
addressed with GCC commit 242424 ("MIPS/GCC: Mark trailing labels with
`.insn'"), <https://gcc.gnu.org/ml/gcc-patches/2016-11/msg01061.html>.

	bfd/
	* elfxx-mips.h (_bfd_mips_elf_insn32): Rename prototype to...
	(_bfd_mips_elf_linker_flags): ... this.  Add another parameter.
	* elfxx-mips.c (mips_elf_link_hash_table): Add
	`ignore_branch_isa' member.
	(mips_elf_perform_relocation): Do not treat an ISA mode mismatch
	in branch relocation calculation as an error if
	`ignore_branch_isa' has been set.
	(_bfd_mips_elf_insn32): Rename to...
	(_bfd_mips_elf_linker_flags): ... this.  Rename the `on'
	parameter to `insn32' and add an `ignore_branch_isa' parameter.
	Handle the new parameter.

	gas/
	* config/tc-mips.c (mips_ignore_branch_isa): New variable.
	(options): Add OPTION_IGNORE_BRANCH_ISA and
	OPTION_NO_IGNORE_BRANCH_ISA enum values.
	(md_longopts): Add "mignore-branch-isa" and
	"mno-ignore-branch-isa" options.
	(md_parse_option): Handle OPTION_IGNORE_BRANCH_ISA and
	OPTION_NO_IGNORE_BRANCH_ISA.
	(fix_bad_cross_mode_branch_p): Return FALSE if
	`mips_ignore_branch_isa' has been set.
	(md_show_usage): Add `-mignore-branch-isa' and
	`-mno-ignore-branch-isa'.

	* doc/as.texinfo (Target MIPS options): Add
	`-mignore-branch-isa' and `-mno-ignore-branch-isa' options.
	(-mignore-branch-isa, -mno-ignore-branch-isa): New options.
	* doc/c-mips.texi (MIPS Options): Add `-mignore-branch-isa' and
	`-mno-ignore-branch-isa' options.

	* testsuite/gas/mips/branch-local-ignore-2.d: New test.
	* testsuite/gas/mips/branch-local-ignore-3.d: New test.
	* testsuite/gas/mips/branch-local-ignore-n32-2.d: New test.
	* testsuite/gas/mips/branch-local-ignore-n32-3.d: New test.
	* testsuite/gas/mips/branch-local-ignore-n64-2.d: New test.
	* testsuite/gas/mips/branch-local-ignore-n64-3.d: New test.
	* testsuite/gas/mips/mips.exp: Run the new tests.

	ld/
	* emultempl/mipself.em (ignore_branch_isa): New variable.
	(mips_create_output_section_statements): Rename
	`_bfd_mips_elf_insn32' called to `_bfd_mips_elf_linker_flags',
	add `ignore_branch_isa' argument.
	(PARSE_AND_LIST_PROLOGUE): Add OPTION_IGNORE_BRANCH_ISA and
	OPTION_NO_IGNORE_BRANCH_ISA enum values.
	(PARSE_AND_LIST_LONGOPTS): Add "ignore-branch-isa" and
	"no-ignore-branch-isa" options.
	(PARSE_AND_LIST_OPTIONS): Add `--ignore-branch-isa' and
	`--no-ignore-branch-isa'.
	(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_IGNORE_BRANCH_ISA and
	OPTION_NO_IGNORE_BRANCH_ISA.

	* ld.texinfo (Options specific to MIPS targets): Add
	`--ignore-branch-isa' and `--no-ignore-branch-isa' options.
	(ld and the MIPS family): Likewise.

	* testsuite/ld-mips-elf/bal-jalx-pic-ignore.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-pic-ignore-n32.d: New test.
	* testsuite/ld-mips-elf/bal-jalx-pic-ignore-n64.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-ignore-2.d: New test.
	* testsuite/ld-mips-elf/unaligned-branch-ignore-r6-1: New test.
	* testsuite/ld-mips-elf/unaligned-branch-ignore-mips16: New
	test.
	* testsuite/ld-mips-elf/unaligned-branch-ignore-micromips: New
	test.
	* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-01-30 17:16:01 +00:00

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2017-01-30 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.h (_bfd_mips_elf_insn32): Rename prototype to...
(_bfd_mips_elf_linker_flags): ... this. Add another parameter.
* elfxx-mips.c (mips_elf_link_hash_table): Add
`ignore_branch_isa' member.
(mips_elf_perform_relocation): Do not treat an ISA mode mismatch
in branch relocation calculation as an error if
`ignore_branch_isa' has been set.
(_bfd_mips_elf_insn32): Rename to...
(_bfd_mips_elf_linker_flags): ... this. Rename the `on'
parameter to `insn32' and add an `ignore_branch_isa' parameter.
Handle the new parameter.
2017-01-27 Hans-Peter Nilsson <hp@axis.com>
* elf32-cris.c (elf_cris_finish_dynamic_symbol): Remove now unused
local variable dynobj.
PR ld/20995
* elf32-cris.c (elf_cris_size_dynamic_sections): Handle sdynrelro.
(elf_cris_adjust_dynamic_symbol): Place variables copied into the
executable from read-only sections into sdynrelro.
(elf_cris_finish_dynamic_symbol): Select sreldynrelro for
dynamic relocs in sdynrelro.
(elf_backend_want_dynrelro): Define.
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (*-*-rtemsaout*): Mark as removed.
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (powerpcle-*-rtems*): Do not mark as removed.
(arm-*-rtems*): Move to (arm*-*-eabi*).
(i[3-7]86-*-rtems*): Move to (i[3-7]86-*-elf*).
(m68-*-rtems*): Move to (m68*-*-elf*).
2017-01-25 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config.bfd (*-*-rtemscoff*): Mark as removed.
2017-01-24 Maciej W. Rozycki <macro@imgtec.com>
PR ld/20828
* elflink.c (bfd_elf_record_link_assignment): Revert last
change and don't ever clear `forced_local'. Set `mark'
unconditionally.
(elf_gc_sweep_symbol_info, elf_gc_sweep_symbol): Reorder within
file.
(elf_gc_sweep): Move the call to `elf_gc_sweep_symbol'...
(bfd_elf_size_dynamic_sections): ... here.
* elf32-ppc.c (ppc_elf_tls_setup): Don't clear `forced_local'
and set `mark' instead in `__tls_get_addr_opt' processing.
* elf64-ppc.c (ppc64_elf_tls_setup): Likewise.
2017-01-24 Alan Modra <amodra@gmail.com>
* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Merge two cases
where dynamic relocs are preferable. Allow ifunc too.
(ensure_undefweak_dynamic): New function.
(allocate_dynrelocs): Use it here. Move plt handling last and
don't make symbols dynamic, simplifying loop. Only make undef
weak symbols with GOT entries dynamic. Correct condition
for GOT relocs. Handle dynamic relocs on ifuncs. Correct
comments. Remove goto.
(ppc_elf_relocate_section): Correct test for using dynamic
symbol on GOT relocs. Rearrange test for emitting GOT relocs
to suit. Set up explicit tls_index entries and implicit GOT
tls_index entries resolvable at link time for
__tls_get_addr_opt. Simplify test to clear mem for prelink.
* elf64-ppc.c (allocate_got): Correct condition for GOT relocs.
(ensure_undefweak_dynamic): New function.
(allocate_dynrelocs): Use it here. Only make undef weak symbols
with GOT entries dynamic. Remove unnecessary test of
WILL_CALL_FINISH_DYNAMIC_SYMBOL in PLT handling.
(ppc64_elf_relocate_section): Correct test for using dynamic
symbol on GOT relocs. Rearrange test for emitting GOT relocs
to suit. Set up explicit tls_index entries and implicit GOT
tls_index entries resolvable at link time for __tls_get_addr_opt.
Simplify expression to clear mem for prelink.
2017-01-23 Yury Norov <ynorov@caviumnetworks.com>
* elfnn-aarch64.c: Fix relaxations for ILP32 mode.
2017-01-20 Jiong Wang <jiong.wang@arm.com>
* elfnn-aarch64.c (elf_aarch64_hash_symbol): New function.
(elf_backend_hash_symbol): Define.
2017-01-18 Maciej W. Rozycki <macro@imgtec.com>
PR ld/20828
* elflink.c (bfd_elf_record_link_assignment): Clear any
`forced_local' marking for DSO symbols that are not being
provided.
2017-01-17 Kuan-Lin Chen <kuanlinchentw@gmail.com>
* elfnn-riscv.c (riscv_elf_object_p): New function.
2017-01-12 H.J. Lu <hongjiu.lu@intel.com>
PR ld/21038
* elf64-x86-64.c (elf_x86_64_link_hash_table): Add
plt_bnd_eh_frame.
(elf_x86_64_check_relocs): Create .eh_frame section for the
.plt.bnd section.
(elf_x86_64_size_dynamic_sections): Allocate and initialize
.eh_frame section for the .plt.bnd section.
(elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section
for the .plt.bnd section.
2017-01-12 Nick Clifton <nickc@redhat.com>
PR binutils/20876
* opncls.c (find_separate_debug_file): Add include_dirs
parameter. Only include the directory part of the bfd's filename
in search paths if include_dirs is true. Add a couple of extra
locations for looking for debug files.
( bfd_follow_gnu_debuglink): Update invocation of
find_separate_debug_file.
(bfd_follow_gnu_debugaltlink): Likewise.
(get_build_id): New function: Finds the build-id of the given bfd.
(get_build_id_name): New function: Computes the name of the
separate debug info file for a bfd, based upon its build-id.
(check_build_id_file): New function: Checks to see if a separate
debug info file exists at the given location, and that its
build-id matches that of the original bfd.
(bfd_follow_build_id_debuglink): New function: Finds a separate
debug info file for a given bfd by using the build-id method.
* dwarf2.c (_bfd_dwarf2_slurp_debug_info): Try using the build-id
method of locating a separate debug info file before using the
debuglink method.
* bfd-in2.h: Regenerate.
2017-01-11 H.J. Lu <hongjiu.lu@intel.com>
PR ld/21038
* elf64-x86-64.c (elf_x86_64_eh_frame_bnd_plt): New.
(elf_x86_64_bnd_arch_bed): Use elf_x86_64_eh_frame_bnd_plt and
elf_x86_64_eh_frame_plt_got.
(elf_x86_64_size_dynamic_sections): Get unwind info from
elf_x86_64_bnd_arch_bed for the BND PLT.
2017-01-11 Jeremy Soller <jackpot51@gmail.com>
* config.bfd: Add entries for i686-redox and x86_64-redox.
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_check_relocs): Align .eh_frame section
to 4 bytes.
* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Align
.eh_frame section to 4 bytes for x32.
(elf_x86_64_check_relocs): Likewise.
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
PR ld/20830
* elf32-i386.c (elf_i386_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_i386_plt_layout): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_i386_plt): Updated.
(elf_i386_link_hash_table): Add plt_got_eh_frame.
(elf_i386_check_relocs): Create .eh_frame section for .plt.got.
(elf_i386_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_i386_finish_dynamic_sections): Adjust .eh_frame section for
.plt.got.
(elf_i386_nacl_plt): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
* elf64-x86-64.c (elf_x86_64_eh_frame_plt_got): New.
(PLT_GOT_FDE_LENGTH): Likewise.
(elf_x86_64_backend_data): Add eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_arch_bed): Updated.
(elf_x86_64_bnd_arch_bed): Add FIXME for eh_frame_plt_got and
eh_frame_plt_got_size.
(elf_x86_64_nacl_arch_bed): Likewise.
(elf_x86_64_link_hash_table): Add plt_got_eh_frame.
(elf_x86_64_check_relocs): Create .eh_frame section for .plt.got.
(elf_x86_64_size_dynamic_sections): Allocate and initialize
.eh_frame section for .plt.got.
(elf_x86_64_finish_dynamic_sections): Adjust .eh_frame section
for .plt.got.
2017-01-10 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_size_dynamic_sections): Set
plt_eh_frame->size to eh_frame_plt_size and use eh_frame_plt.
2017-01-09 Nick Clifton <nickc@redhat.com>
* dwarf2.c (lookup_address_in_function_table): Return early if
there are no functions in the given comp unit, or if the high
address of the last function in the comp unit is less than the
desired address.
2017-01-09 Nick Clifton <nickc@redhat.com>
PR binutils/21013
* coffgen.c (_bfd_coff_get_external_symbols): Generate an error
message if there are too many symbols to load.
2017-01-04 James Clarke <jrtc27@jrtc27.com>
* elf64-alpha.c (elf64_alpha_relax_opt_call): Don't set tsec_free
if relocs are cached.
2017-01-03 Rich Felker <bugdal@aerifal.cx>
PR ld/21017
* elf32-microblaze.c (microblaze_elf_check_relocs): Add an entry
for R_MICROBLAZE_GOTOFF_64.
2017-01-03 Nick Clifton <nickc@redhat.com>
* mach-o.c (bfd_mach_o_lookup_uuid_command): Fix compile time
warning about using a possibly uninitialised variable.
2017-01-02 Alan Modra <amodra@gmail.com>
* elf32-hppa.c (ensure_undef_weak_dynamic): New function.
(allocate_plt_static, allocate_dynrelocs): Use it.
2017-01-02 Alan Modra <amodra@gmail.com>
* elf-hppa.h (elf_hppa_fake_sections): Set SHF_INFO_LINK for
.PARISC.unwind section.
2017-01-02 Alan Modra <amodra@gmail.com>
PR ld/20989
* elfxx-sparc.c (gdop_relative_offset_ok): New function.
(_bfd_sparc_elf_relocate_section): Use it to validate GOT
indirect to GOT pointer relative code edit.
2017-01-02 Alan Modra <amodra@gmail.com>
Update year range in copyright notice of all files.
For older changes see ChangeLog-2016
Copyright (C) 2017 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
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