path: root/gold/ChangeLog

2017-06-23  Alan Modra  <amodra@gmail.com>

	* options.h (General_options): Add plt_localentry.
	* powerpc.cc (Target_powerpc::st_other): New function.
	(Target_powerpc::plt_localentry0_, plt_localentry0_init_,
	has_localentry0_): New vars.
	(Target_powerpc::plt_localentry0, set_has_localentry0,
	is_elfv2_localentry0): New functions.
	(Target_powerpc::Branch_info::mark_pltcall): Don't set tocsave or
	return true for localentry:0 calls.
	(Stub_table::Plt_stub_ent::localentry0_): New var.
	(Stub_table::add_plt_call_entry): Set localentry0_ and has_localentry0_.
	Don't set r2save_ for localentry:0 calls.
	(Output_data_glink::do_write): Save r2 in __glink_PLTresolve for elfv2.
	(Target_powerpc::scan_relocs): Default plt_localentry0_.
	(Target_powerpc::do_finalize_sections): Set DT_PPC64_OPT.
	(Target_powerpc::Relocate::relocate): Don't require nop following
	calls for localentry:0 plt calls, and don't change nop.

2017-06-23  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::tocsave_loc_): New var.
	(Target_powerpc::mark_pltcall, add_tocsave, tocsave_loc): New functions.
	(Target_powerpc::Branch_info::tocsave_): New var.
	(Target_powerpc::Branch_info::mark_pltcall): New function.
	(Target_powerpc::Branch_info::make_stub): Pass tocsave_ to
	add_plt_call_entry.
	(Stub_table::Plt_stub_ent): Make public.  Add r2save_.
	(Stub_table::add_plt_call_entry): Add bool tocsave_ param.  Set
	r2save_.
	(Stub_table::find_plt_call_entry): Return Plt_stub_ent*.  Adjust
	use throughout.
	(Stub_table::do_write): Conditionally output r2 save in plt stubs.
	(Target_powerpc::Scan::local): Handle R_PPC64_TOCSAVE.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Skip r2 save in plt call stub
	with tocsave reloc.  Replace header tocsave nop with r2 save.
	* symtab.h (struct Symbol_location_hash): Make public.

2017-06-21  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Plt_stub_key): Rename from Plt_stub_ent.  Remove indx_.
	(Plt_stub_key_hash): Rename from Plt_stub_ent_hash.
	(struct Plt_stub_ent): New.
	(Plt_stub_entries): Map from Plt_stub_key to Plt_stub_ent.  Adjust
	use throughout file.

2017-06-20  Eric Christopher  <echristo@gmail.com>

	* aarch64.cc (scan_reloc_for_stub): Use plt_address_for_global to
	calculate the symbol value.
	(scan_reloc_section_for_stubs): Allow stubs to be created for
	section symbols.
	(maybe_apply_stub): Handle creating stubs for weak symbols to
	match the code in scan_reloc_for_stub.

2017-06-20  James Clarke  <jrtc27@jrtc27.com>

	* powerpc.cc (Stub_table::define_stub_syms): Always include object's
	uniq_ value.

2017-06-15  Eric Christopher  <echristo@gmail.com>

	* aarch64.cc: Fix a few typos and grammar-os.

2017-06-15  Jiong Wang  <jiong.wang@arm.com>

	* aarch64.cc (Insn_utilities::is_mrs_tpidr_el0): New method.
	(AArch64_relobj<size, big_endian>::try_fix_erratum_843419_optimized):
	Return ture for some TLS relaxed sequences.

2017-06-07  Eric Christopher  <echristo@gmail.com>

	* aarch64.cc (maybe_apply_stub): Add debug logging for looking
	up stubs to undefined symbols and early return rather than
	fail to look them up.
	(scan_reloc_for_stub): Add debug logging for no stub creation
	for undefined symbols.

2017-05-23  Alan Modra  <amodra@gmail.com>

	PR 21503
	* options.h: Add --emit-stub-syms option.
	* powerpc.cc (object_id): New.
	(Powerpc_relobj): Add uniq_ and accessor.  Sort variables for
	better packing.
	(Powerpc_dynobj): Sort variables for better packing.
	(Target_powerpc::define_local): New function.
	(Target_powerpc::group_sections): Pass stub table size to
	Stub_table constructor.
	(Target_powerpc::do_relax): Define stub and glink symbols.
	(Stub_table): Add uniq_ variable, and id param to constructor.
	(Stub_table::Plt_stub_ent): Add indx_ variable.
	(Stub_table::Branch_stub_entries): Move typedef earlier.
	(Stub_table::branch_stub_size): Replace "to" parameter with a
	Branch_stub_entries iterator.
	(Stub_table::add_long_branch_entry): Adjust to suit.
	(Stub_table::add_plt_call_entry): Set indx_.
	(Stub_table::define_stub_syms): New function.

2017-05-15  Eric Christopher <echristo@gmail.com>

        * layout.cc (Layout::segment_precedes): Add a case for testing
        pointer equality when determining which segment precedes
        another.

2017-05-13  James Clarke  <jrtc27@jrtc27.com>

	PR gold/21444
	* gold.cc (Target_sparc::Relocate::relocate_tls): Local
	variables are final for position-independent executables. This
	has to be consistent with Target_sparc::Scan::local otherwise
	they will disagree as to whether local-exec is used.

2017-05-12  Igor Kudrin  <ikudrin@accesssoftek.com>

	PR gold/21430
	* aarch64.cc
	(AArch64_relobj::convert_input_section_to_relaxed_section):
	Set the section offset to -1ULL.
	(Target_aarch64::relocate_section): Adjust the view in case
	of a relaxed input section.
	* testsuite/Makefile.am (pr21430): New test.
	* testsuite/Makefile.in: Regenerate
	* testsuite/pr21430.s: New test source file.
	* testsuite/pr21430.sh: New test script.

2017-04-27  Alan Modra  <amodra@gmail.com>

	* testsuite/plugin_section_order.c (onload): Add missing break.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Mips_got_entry::hash()): Shift addend to reduce
	possibility of collisions.
	(Mips_got_entry::equals): Fix case for GOT_TLS_LDM
	entries.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Mips_relobj::merge_processor_specific_data_): New data
	member.
	(Mips_relobj::merge_processor_specific_data): New method.
	(Mips_relobj::do_read_symbols): Set merge_processor_specific_data_
	to false, only if the input file is a binary or if object has no
	contents except the section name string table and an empty symbol
	table with the undefined symbol.
	(Target_mips::do_finalize_sections): Refactor.  Skip empty object files
	for merging processor-specific data.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Target_mips::Relocate::calculated_value_): New data
	member.
	(Target_mips::Relocate::calculate_only_): Likewise.
	(Target_mips::Relocate::relocate): Handle multiple consecutive
	relocations with the same offset.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Target_mips::Relocate::relocate): Remove redundant
	checks for relocatable link.
	(Mips_relocate_functions::reljalr): Likewise.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (class Mips_output_section_options): New class.
	(Target_mips::do_make_output_section): New method.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Mips_relocate_functions::rel26): Don't print relocation
	overflow error message.
	(Target_mips::relocate_special_relocatable): Improve relocation
	overflow error message.
	(Target_mips::Relocate::relocate): Likewise.

2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (symbol_refs_local): Return false if a symbol
	is from a dynamic object.
	(Target_mips::got_section): Make _GLOBAL_OFFSET_TABLE_ STV_HIDDEN.
	(Target_mips::set_gp): Refactor.  Make _gp STT_NOTYPE and
	STB_LOCAL.
	(Target_mips::do_finalize_sections): Set _gp after all the checks
	for creating .got are done.
	(Target_mips::Scan::global): Remove unused code.

2017-02-22  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::make_iplt_section): Check that
	output_section exists before attempting add_output_section_data.
	(Target_powerpc::make_brlt_section): Likewise.

2017-02-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Target_mips::Scan::get_reference_flags): Remove
	gold_unreachable from default case.

2017-02-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	PR gold/21111
	* mips.cc (Mips_relocate_functions::relhigher): New method.
	(Mips_relocate_functions::relhighest): Likewise.
	(mips_get_size_for_reloc): Add support for relocs: R_MIPS_HIGHER and
	R_MIPS_HIGHEST.
	(Target_mips::Scan::local): Add support for relocs: R_MIPS_HIGHER,
	R_MIPS_HIGHEST, R_MICROMIPS_HIGHER and R_MICROMIPS_HIGHEST.
	(Target_mips::Scan::global): Likewise.
	(Target_mips::Scan::get_reference_flags): Likewise.
	(Target_mips::Relocate::relocate): Call static methods for resolving
	HIGHER and HIGHEST relocations.

2017-02-03  Rahul Chaudhry  <rahulchaudhry@google.com>

	* x86_64.cc (Target_x86_64::do_can_check_for_function_pointers):
	Return true even when building pie binaries.
	(Target_x86_64::possible_function_pointer_reloc): Check opcode
	for R_X86_64_PC32 relocations.
	(Target_x86_64::local_reloc_may_be_function_pointer): Pass
	extra arguments to local_reloc_may_be_function_pointer.
	(Target_x86_64::global_reloc_may_be_function_pointer): Likewise.
	* gc.h (gc_process_relocs): Add check for STT_FUNC.
	* testsuite/Makefile.am (icf_safe_pie_test): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_safe_pie_test.sh: New shell script.

2017-02-03  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Powerpc_relobj::make_toc_relative): Don't crash
	when no .toc section exists.

2017-01-31  Cary Coutant  <ccoutant@gmail.com>

	PR gold/21090
	* x86_64.cc (Target_x86_64::can_convert_mov_to_lea): Add check
	for predefined symbol.
	(Target_x86_64::Relocate::relocate): Fix formatting.

2017-01-23  Rahul Chaudhry  <rahulchaudhry@google.com>

        * testsuite/icf_safe_so_test.sh: Use "set -e".
        * testsuite/icf_safe_test.sh: Likewise.
        * testsuite/icf_test.sh: Likewise.

2017-01-23  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	* mips.cc (Mips_output_data_plt::rel_plt): Remove const from return
	type.
	(Target_mips::make_plt_entry): Make the sh_info field of .rel.plt
	point to .plt.

2017-01-23  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>

	PR gold/21054
	* mips.cc (Mips_got_info::record_global_got_symbol): Don't add symbol
	to the dynamic symbol table if it is forced to local visibility.
	(Target_mips::do_finalize_sections): Don't add __RLD_MAP symbol to the
	dynamic symbol table if it is forced to local visibility.

2017-01-20  Nick Clifton  <nickc@redhat.com>

	* aarch64.cc (Stub_template_repertoire): Change ST_E_835769_INSNS
        from a pointer to an array.

2017-01-13  H.J. Lu  <hongjiu.lu@intel.com>

	PR gold/21040
	* powerpc.cc (Powerpc_relobj<size, big_endian>::make_toc_relative):
	Cast 0x80008000 to uint64_t.

2017-01-12  Cary Coutant  <ccoutant@gmail.com>

	* object.cc (Sized_relobj_file): Fix byte counts for calls to memmem.

2017-01-11  Cary Coutant  <ccoutant@gmail.com>

	PR gold/21040
	* x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry):
	Remove unnecessary 'typename' keyword.
	(Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise.
	(Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise.
	(Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise.
	(Output_data_plt_x86_64_bnd::do_write): Likewise.

2017-01-11  Cary Coutant  <ccoutant@gmail.com>

	PR gold/21040
	* x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry):
	Remove unnecessary 'typename' keyword.
	(Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise.
	(Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise.
	(Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise.
	* testsuite/copy_test_relro_1.cc (p, b, c, q): Add separate extern
	declarations.

2017-01-11  Cary Coutant  <ccoutant@gmail.com>

	PR gold/21039
	* testsuite/script_test_13.sh: Adjust patterns to work for i386.
	* testsuite/script_test_15a.sh: Likewise.
	* testsuite/script_test_15b.sh: Likewise.
	* testsuite/script_test_15c.sh: Likewise.

2017-01-11  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (class Powerpc_copy_relocs): New.
	(Powerpc_copy_relocs::emit): New function.
	(Powerpc_relobj::relatoc_, toc_, no_toc_opt_): New variables.
	(Powerpc_relobj::toc_shndx, set_no_toc_opt, no_toc_opt): New inlines.
	(Powerpc_relobj::do_relocate_sections): New function.
	(Powerpc_relobj::make_toc_relative): Likewise.
	(Powerpc_relobj::do_find_special_sections): Stash away .rela.toc
	and .toc too.
	(ok_lo_toc_insn): Move earlier, and handle more insns.
	(Target_powerpc::Scan::local): If optimizing toc accesses, set
	no_toc_opt for entries we can't edit.  Check insn validity.
	Emit "toc optimization is not supported" warning, downgraded
	from error.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Edit TOC indirect code
	to TOC relative.  Don't emit "toc optimization is not supported"
	error here.

2017-01-10  Cary Coutant  <ccoutant@gmail.com>

	* aarch64.cc (AArch64_relobj::do_relocate_sections): Call
	Sized_relobj_file::relocate_section_range().
	* arm.cc (Arm_relobj::do_relocate_sections): Likewise.
	* object.h (Sized_relobj_file::relocate_section_range): New method.
	* reloc.cc (Sized_relobj_file::do_relocate_sections): Move
	implementation...
	(Sized_relobj_file::relocate_section_range): ...to new method.

2017-01-10  Alan Modra  <amodra@gmail.com>

	* testsuite/ver_test_8.sh: Accept .TOC. in lieu of
	_GLOBAL_OFFSET_TABLE_.  Allow zero count.
	* testsuite/copy_test_relro_1.cc (c, q): New vars.
	* testsuite/copy_test_relro.cc: Rewrite to test read-only
	status of variables directly.  Reference new vars in
	read-only data.

2017-01-10  Alan Modra  <amodra@gmail.com>

	* options.h: Add --secure-plt option.
	* powerpc.cc (Target_powerpc::Scan::local): Detect and error
	on -fPIC -mbss-plt code.
	(Target_powerpc::Scan::global): Likewise.

2017-01-09  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::make_plt_section): Point sh_info of
	".rela.plt" at ".plt".

2017-01-07  Alan Modra  <amodra@gmail.com>

	* powerpc.cc: Use shorter equivalent elfcpp typedef for
	Reltype and reloc_size throughout.
	(Target_powerpc::symval_for_branch): Exclude dynamic symbols.
	(Target_powerpc::Scan::local): Use local var r_sym.
	(Target_powerpc::Scan::global: Likewise.
	(Target_powerpc::Relocate::relocate): Delete shadowing r_sym.

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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