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binutils-gdb/gold/ChangeLog
Alan Modra fa40fbe484 [GOLD] Power10 segv due to wild r2 
Calling non-pcrel functions from pcrel code requires a stub to set up
r2.  Gold created the stub, but an "optimisation" made the stub jump
to the function local entry, ie. r2 was not initialised.

This patch fixes that long branch stub problem, and another that might
occur for plt call stubs to local functions.

bfd/
	* elf64-ppc.c (write_plt_relocs_for_local_syms): Don't do local
	entry offset optimisation.
gold/
	* powerpc.cc (Powerpc_relobj::do_relocate_sections): Don't do
	local entry offset optimisation for lplt_section.
	(Target_powerpc::Branch_info::make_stub): Don't add local
	entry offset to long branch dest passed to
	add_long_branch_entry.  Do pass st_other bits.
	(Stub_table::Branch_stub_ent): Add "other_" field.
	(Stub_table::add_long_branch_entry): Add "other" param, and
	save.
	(Stub_table::branch_stub_size): Adjust long branch offset.
	(Stub_table::do_write): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.
2020-10-09 23:24:17 +10:30

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2020-10-09 Alan Modra <amodra@gmail.com>
* powerpc.cc (Powerpc_relobj::do_relocate_sections): Don't do
local entry offset optimisation for lplt_section.
(Target_powerpc::Branch_info::make_stub): Don't add local
entry offset to long branch dest passed to
add_long_branch_entry. Do pass st_other bits.
(Stub_table::Branch_stub_ent): Add "other_" field.
(Stub_table::add_long_branch_entry): Add "other" param, and
save.
(Stub_table::branch_stub_size): Adjust long branch offset.
(Stub_table::do_write): Likewise.
(Target_powerpc::Relocate::relocate): Likewise.
2020-10-09 Alan Modra <amodra@gmail.com>
* powerpc.cc (is_got_reloc): New function.
(Target_powerpc::Relocate::relocate): Use it here, exclude GOT
relocs when looking for stubs.
2020-10-08 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/split_i386.sh: Updated for --split-stack-adjust-size
default change.
* testsuite/split_x86_64.sh: Likewise.
2020-10-08 Alan Modra <amodra@gmail.com>
* options.h (split_stack_adjust_size): Default to 0x100000.
2020-09-26 Alan Modra <amodra@gmail.com>
* powerpc.cc (Target_powerpc): Rename power10_stubs_ to
power10_relocs_.
(Target_powerpc::set_power10_relocs): New accessor.
(Target_powerpc::set_power10_stubs): Delete.
(Target_powerpc::power10_stubs): Adjust.
(Target_powerpc::has_localentry0): New accessor.
(ld_0_11): New constant.
(glink_eh_frame_fde_64v1, glink_eh_frame_fde_64v2): Adjust.
(glink_eh_frame_fde_64v2_localentry0): New.
(Output_data_glink::pltresolve_size): Update.
(Output_data_glink::add_eh_frame): Use localentry0 version eh_frame.
(Output_data_glink::do_write): Move r2 save to start of ELFv2 stub
and only emit for has_localentry0. Don't use r2 in the stub.
(Target_powerpc::Scan::local, global): Adjust for
set_power10_relocs renaming.
(Target_powerpc::scan_relocs): Warn and reset plt_localentry0_.
2020-09-24 Alan Modra <amodra@gmail.com>
* powerpc.cc (Target_powerpc::Relocate::relocate): Don't skip
first insn of __tls_get_addr_opt stub.
2020-08-24 Alan Modra <amodra@gmail.com>
* powerpc.cc (Target_powerpc): Add tprel_opt_ and accessors.
(Target_powerpc::Scan::local): Sanity check tprel high relocs.
(Target_powerpc::Scan::global): Likewise.
(Target_powerpc::Relocate::relocate): Control tprel optimisation
with tprel_opt_ and enable for 32-bit.
2020-08-12 Nick Clifton <nickc@redhat.com>
* po/sr.po: Updated Serbian translation.
2020-07-27 Alan Modra <amodra@gmail.com>
* options.h (DEFINE_enum): Add optional_arg__ param, adjust
all uses.
(General_options): Add --power10-stubs and --no-power10-stubs.
* options.cc (General_options::parse_no_power10_stubs): New.
(General_options::finalize): Handle --power10-stubs.
* powerpc.cc (set_power10_stubs): Don't set when --power10-stubs=no.
(power10_stubs_auto): New.
(struct Plt_stub_ent): Add toc_ and tocoff_. Don't use a bitfield
for indx_.
(struct Branch_stub_ent): Add toc_and tocoff_. Use bitfields for
iter_, notoc_ and save_res_.
(add_plt_call_entry): Set toc_. Adjust resizing conditions for
--power10-stubs=auto.
(add_long_branch_entry): Set toc_.
(add_eh_frame, define_stub_syms): No longer use const_iterators
for plt and long branch stub iteration.
(build_tls_opt_head, build_tls_opt_tail): Change parameters and
return value. Move tests for __tls_get_addr to callers.
(plt_call_size): Handle --power10-stubs=auto.
(branch_stub_size): Likewise.
(Stub_table::do_write): Likewise.
(relocate): Likewise.
2020-07-19 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/bnd_ifunc_1.sh: Updated.
* testsuite/bnd_plt_1.sh: Likewise.
* testsuite/split_x32.sh: Likewise.
* testsuite/split_x86_64.sh: Likewise.
* testsuite/x86_64_indirect_call_to_direct.sh: Likewise.
2020-07-08 Nick Clifton <nickc@redhat.com>
* testsuite/script_test_7.sh: Adjust expected address of the .bss
section.
* testsuite/script_test_9.sh: Do not expect the .init section to
immediately follow the .text section in the mapping of sections to
segments.
2020-07-07 Nick Clifton <nickc@redhat.com>
* target-reloc.h: (Default_comdat_behaviour:get): Ignore discarded
relocs that refer to the .gnu.build.attributes section.
2020-07-06 Nick Clifton <nickc@redhat.com>
* po/fr.po: Updated French translation.
* po/uk.po: Updated Ukranian translation.
2020-07-04 Nick Clifton <nickc@redhat.com>
Binutils 2.35 branch created.
2020-07-03 Alan Modra <amodra@gmail.com>
PR 26028
* testsuite/Makefile.am (file_in_many_sections.stdout): Add -W
to readelf options.
* testsuite/Makefile.in: Regenerate.
2020-06-26 Nick Alcock <nick.alcock@oracle.com>
* configure.ac: Check for bswap_16, bswap_32, and bswap_64 decls.
* configure: Regenerated.
* config.h.in: Likewise.
2020-06-24 Nick Clifton <nickc@redhat.com>
* target-reloc.h (issue_discarded_error): Initialise the
key_symndx variable.
2020-06-23 Roland McGrath <mcgrathr@google.com>
PR 22843
* 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.
2020-06-18 Fangrui Song <i@maskray.me>
PR gold/26039
* layout.cc (Layout::finish_dynamic_section): Set DF_1_PIE.
2020-06-16 Alan Modra <amodra@gmail.com>
* testsuite/discard_locals_test.c: Replace uses of asm with __asm__.
* testsuite/discard_locals_relocatable_test.c: Likewise.
2020-06-16 Alan Modra <amodra@gmail.com>
* testsuite/Makefile.am (export_dynamic_plugin.o): Use CXXCOMPILE.
(plugin_test_wrap_symbols_1.o): Likewise.
(plugin_test_wrap_symbols_2.o): Likewise.
* testsuite/Makefile.in: Regenerate.
2020-06-15 Roland McGrath <mcgrathr@google.com>
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.
2020-06-06 Alan Modra <amodra@gmail.com>
* powerpc.cc: Update throughout for reloc renaming.
2020-05-22 Alan Modra <amodra@gmail.com>
PR 25882
* powerpc.cc (merge_object_attributes): Replace name param with
obj param. Update callers. Don't init FP attributes from shared
libraries, and do not emit an error if they don't match.
2020-05-15 Nikita Ermakov <coffe92@gmail.com>
* powerpc.cc (do_gc_mark_symbol): Don't segfault on plugin symbols.
2020-05-14 Nick Clifton <nickc@redhat.com>
* po/sr.po: New Serbian translation.
2020-05-11 Alan Modra <amodra@gmail.com>
* powerpc.cc: Rename powerxx to power10 throughout.
2020-05-02 H.J. Lu <hongjiu.lu@intel.com>
PR gold/25904
* testsuite/Makefile.am (COMMON_TEST_C_CFLAGS): New.
(common_test_1.o): New rule.
(common_test_2.o): Likewise.
(common_test_3.o): Likewise.
(plugin_common_test_1.o): Likewise.
(plugin_common_test_2.o): Likewise.
(common_test_1_v1.o): Likewise.
(common_test_1_v2.o): Likewise.
(common_test_2_pic.o): Compile with $(COMMON_TEST_C_CFLAGS).
(common_test_3_pic.o): Likewise.
* testsuite/Makefile.in: Regenerated.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
PR gold/25426
* x86_64.cc (Target_x86_64<size>::Relocate::tls_desc_gd_to_ie):
For x32, relax "rex leal foo@tlsdesc(%rip), %reg" to
"rex movl foo@gottpoff(%rip), %eax" and relax ""call *(%eax)"
to "nopl (%rax)".
(Target_x86_64<size>::Relocate::tls_desc_gd_to_le): For x32,
relax "rex leal foo@tlsdesc(%rip), %reg" to
"rex movl foo@tpoff, %eax" and relax "call *foo@tlscall(%eax)"
to "nopl (%rax)".
* testsuite/Makefile.am (tls_test_gnu2.o): Depend on
gcctestdir/as.
(tls_test_file2_gnu2.o): Likewise.
(tls_test_c_gnu2.o): Likewise.
* testsuite/Makefile.in: Regenerated.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
PR gold/25473
* x86_64.cc (Target_x86_64<size>::Relocate::tls_desc_gd_to_ie):
Properly check r8 - r15 in "lea foo@TLSDESC(%rip), %reg".
(Target_x86_64<size>::Relocate::tls_desc_gd_to_le): Properly
relax r8 - r15 in "lea foo@TLSDESC(%rip), %reg".
* testsuite/Makefile.am (check_SCRIPTS): Add x86_64_gd_to_le.sh.
(check_DATA): Add x86_64_gd_to_le.stdout.
(MOSTLYCLEANFILES): Add x86_64_gd_to_le.
(x86_64_gd_to_le.o): New target.
(x86_64_gd_to_le): Likewise.
(x86_64_gd_to_le.stdout): Likewise.
* testsuite/Makefile.in: Regenerated.
* testsuite/x86_64_gd_to_le.s: New file.
* testsuite/x86_64_gd_to_le.sh: Likewise.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/odr_violation2.cc (Ordering::operator()): Make
expression even more complex.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/ver_test_pr16504.sh: Updated.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
PR gold/25872
* x86_64.cc (Output_data_plt_x86_64_bnd::do_write): Increment
plt_offset after setting the reserved TLSDESC PLT entry.
(Output_data_plt_x86_64_ibt<size>::do_write): Likewise.
2020-05-01 H.J. Lu <hongjiu.lu@intel.com>
PR gold/25872
* x86_64.cc (Output_data_plt_x86_64_bnd::do_address_for_local):
Handle local IFUNC symbol.
(Output_data_plt_x86_64_ibt::do_address_for_local): Likewise.
2020-03-19 Fangrui Song <maskray@google.com>
* options.h (General_options): Add --no-rosegment option.
2020-02-24 Nick Clifton <nickc@redhat.com>
* po/fr.po: Update French translation.
2020-01-20 Nick Clifton <nickc@redhat.com>
* po/uk.po: Updated Ukranian translation.
2020-01-18 Nick Clifton <nickc@redhat.com>
* configure: Regenerate.
* po/gold.pot: Regenerate.
2020-01-18 Nick Clifton <nickc@redhat.com>
Binutils 2.34 branch created.
2020-01-01 Alan Modra <amodra@gmail.com>
Update year range in copyright notice of all files.
For older changes see ChangeLog-2019
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