[GOLD] PowerPC64 ELFv2 notoc support

[deliverable/binutils-gdb.git] / gold / ChangeLog

2019-07-13  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::maybe_skip_tls_get_addr_call): Handle
	notoc calls.
	(is_branch_reloc): Template on size.  Return true for REL24_NOTOC.
	Update all callers.
	(max_branch_delta): Likewise.
	(Target_powerpc::Branch_info::make_stub): Add a stub for notoc
	calls to functions needing a valid toc pointer.
	(Target_powerpc::do_relax): Layout stubs again if any need resize.
	(add_12_11_12, addi_12_11, addis_12_11, ldx_12_11_12, ori_12_12_0),
	(oris_12_12_0, sldi_12_12_32): Define.
	(Stub_table::Plt_stub_ent): Add notoc_ and iter_ fields.
	(Stub_table::Branch_stub_key, Branch_stub_key_hash): Rename from
	Branch_stub_ent and Branch_stub_ent hash.  Remove save_res_ from key.
	(Stub_table::Branch_stub_ent): New struct.
	(class Stub_table): Add need_resize and resizing vars.
	(Stub_table::need_resize, branch_size): New accessors.
	(Stub_table::set_resizing): New function.
	(Stub_table::add_plt_call_entry): Handle notoc calls and resizing
	on seeing such or a tocsave stubs after a normal stub using the
	same sym.
	(Stub_table::add_long_branch_entry): Similarly.
	(Stub_table::find_long_branch_entry): Return a Branch_stub_ent*.
	(Stub_table::define_stub_syms): Adjust
	(Stub_table::build_tls_opt_head, build_tls_opt_tail): New functions.
	(build_notoc_offset): New function.
	(Stub_table::plt_call_size): Move out of line.  Handle notoc calls.
	(Stub_table::branch_stub_size): Similarly.
	(Stub_table::do_write): Separate loop for ELFv2 stubs, handling
	notoc calls.  Simplify ELFv1 loop.  Output notoc branch stubs.
	Use build_tls_opt_head and build_tls_opt_tail.
	(Target_powerpc::Scan::get_reference_flags): Handle REL24_NOTOC.
	(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Likewise,
	and PLTSEQ_NOTOC and PLTCALL_NOTOC.
	(Target_powerpc::Scan::local, global, relocate): Likewise.

2019-06-28  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::Relocate::relocate): Don't look
	at next/previous reloc when relnum is -1.

2019-06-28  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Stub_table::plt_error): New function.
	(Stub_table::do_write): Use it.
	(Output_data_glink::do_write): Don't segfault emitting linkage
	table error.

2019-06-28  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Handle
	REL16_HIGH* relocs.
	(Target_powerpc::Scan::local): Likewise.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.

2019-06-10  Martin Liska  <mliska@suse.cz>

	* errors.h: Include string.

2019-05-10  Joshua Oreman  <oremanj@hudson-trading.com>

	PR gold/21066
	* gc.h (gc_process_relocs): Track relocations in .eh_frame sections
	when ICF is enabled, even though the .eh_frame sections themselves
	are not foldable.
	* icf.cc (get_section_contents): Change arguments to permit operation
	on just part of a section. Include extra identity regions in the
	referring section's contents recursively.
	(match_sections): Lock object here instead of in get_section_contents
	so that get_section_contents can operate recursively.
	(Icf::add_ehframe_links): New method.
	(Icf::find_identical_sections): Pass .eh_frame sections to
	add_ehframe_links(). Increase default iteration count from 2 to 3
	because handling exception info typically requires one extra iteration.
	* icf.h (Icf::extra_identity_list_): New data member with accessor.
	(is_section_foldable_candidate): Include .gcc_except_table sections.
	* options.h: Update documentation for new default ICF iteration count.
	* testsuite/Makefile.am (icf_test_pr21066): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/icf_test_pr21066.cc: New source file.
	* testsuite/icf_test_pr21066.sh: New test script.

2019-02-19  Egeyar Bagcioglu  <egeyar.bagcioglu@oracle.com>

     PR gold/23870
     * aarch64.cc (Target_aarch64::Scan::global): Check if a symbol with
     R_AARCH64_MOVW_.ABS_* relocations requires a PLT entry.
     * testsuite/Makefile.am: Add aarch64_pr23870 test case.
     * testsuite/Makefile.in: Regenerate.
     * testsuite/aarch64_pr23870_bar.c: New file.
     * testsuite/aarch64_pr23870_foo.c: New file.
     * testsuite/aarch64_pr23870_main.S: New file.

2019-02-12  Nick Clifton  <nickc@redhat.com>

	* po/fr.po: Updated French translation.

2019-01-21  Nick Clifton  <nickc@redhat.com>

	* po/uk.po: Updated Ukranian translation.

2019-01-19  Nick Clifton  <nickc@redhat.com>

	* po/gold.pot: Regenerate.

2018-06-24  Nick Clifton  <nickc@redhat.com>

	2.32 branch created.

2019-01-09  Andrew Paprocki  <andrew@ishiboo.com>

	* configure: Regenerate.

2019-01-01  Alan Modra  <amodra@gmail.com>

	Update year range in copyright notice of all files.

For older changes see ChangeLog-2018
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