Revert "PowerPC PLT speculative execution barriers"

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

2018-02-07  Alan Modra  <amodra@gmail.com>

	Revert 2018-01-17  Alan Modra  <amodra@gmail.com>
	* elf32-ppc.c: Remove speculation barrier support.
	* elf32-ppc.h: Likewise.
	* elf64-ppc.c: Likewise.
	* elf64-ppc.h: Likewise.

2018-02-06  Jim Wilson  <jimw@sifive.com>

	* elfnn-riscv.c (riscv_elf_relocate_section): Return TRUE if used
	callback to report an error.

2018-02-06  Eric Botcazou  <ebotcazou@adacore.com>

	PR ld/22263
	* elfxx-sparc.c (sparc_elf_tls_transition): Turn call to bfd_link_pic
	into call to !bfd_link_executable and tidy up.
	(_bfd_sparc_elf_check_relocs): Fix formatting and tidy up.
	<R_SPARC_TLS_LE_HIX22>: Turn call to bfd_link_pic into call to
	!bfd_link_executable.
	<R_SPARC_TLS_IE_HI22>: Likewise.
	<GOT relocations>: Remove useless code, tidy and merge related blocks.
	<R_SPARC_TLS_GD_CALL>: Turn call to bfd_link_pic into call to
	!bfd_link_executable.
	<R_SPARC_WPLT30>: Tidy up.
	(_bfd_sparc_elf_gc_mark_hook): Turn call to bfd_link_pic into call to
	!bfd_link_executable.
	(allocate_dynrelocs): Likewise.
	(_bfd_sparc_elf_relocate_section): Fix formatting and tidy up.
	<R_SPARC_TLS_GD_HI22>: Merge into...
	<R_SPARC_TLS_GD_LO10>: ...this.  Adjust 4th argument in call to
	sparc_elf_tls_transition and remove redundant code.
	<R_SPARC_TLS_LDM_HI22>: Turn call to bfd_link_pic into call to
	!bfd_link_executable.
	<R_SPARC_TLS_LDO_HIX22>: Likewise.
	<R_SPARC_TLS_LE_HIX22>: Likewise.  Tidy up.
	<R_SPARC_TLS_LDM_CALL>: Likewise.
	<R_SPARC_TLS_GD_CALL>: Likewise.  Tidy up.
	<R_SPARC_TLS_GD_ADD>: Likewise.
	<R_SPARC_TLS_LDM_ADD>: Likewise.
	<R_SPARC_TLS_LDO_ADD>: Likewise.
	<R_SPARC_TLS_IE_LD>: Likewise.

2018-02-06  Miloš Stojanović  <milos.stojanovic@rt-rk.com>

	PR 22789
	* elfxx-mips.c (_bfd_mips_elf_find_nearest_line): If the dwarf
	functions failed to find the function name, try the generic elf
	find function instead.

2018-02-06  Sergio Durigan Junior  <sergiodj@redhat.com>

	* coff-rs6000.c (xcoff_write_archive_contents_old): Use
	'memcpy' instead of 'strncpy' when writing the magic number.

2018-02-06  Nick Clifton  <nickc@redhat.com>

	PR 22794
	* opncls.c (bfd_get_debug_link_info_1): Check the size of the
	section before attempting to read it in.
	(bfd_get_alt_debug_link_info): Likewise.

2018-02-06  Paul Carroll  <pcarroll@codesourcery.com>

	* bfd/dwarf2.c (find_abstract_name): Modified to return file and
	line information in addition to name, if they can be found.

2018-02-05  Renlin Li  <renlin.li@arm.com>

	PR ld/22764
	* elfnn-aarch64.c (elfNN_aarch64_check_relocs): Relax the
	R_AARCH64_ABS32 and R_AARCH64_ABS16 for absolute symbol. Apply the
	check for writeable section as well.

2018-02-05  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22782
	* elf32-i386.c (elf_i386_check_relocs): Set got_referenced if
	_GLOBAL_OFFSET_TABLE_ is referenced or GOT is needed to resolve
	undefined weak symbol to 0.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Set got_referenced
	if _GLOBAL_OFFSET_TABLE_ is referenced.
	* elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Check
	got_referenced instead of ref_regular_nonweak.  Remove the
	unused _GLOBAL_OFFSET_TABLE_ from symbol table.
	* elfxx-x86.h (elf_x86_link_hash_table): Add got_referenced.

2018-02-05  Maciej W. Rozycki  <macro@mips.com>

	* elfnn-riscv.c (_bfd_riscv_relax_pc): Use `memset' to
	initialize `hi_reloc'.

2018-02-05  Maciej W. Rozycki  <macro@mips.com>

	* elfxx-mips.c (_bfd_mips_elf_section_processing): For
	SHT_MIPS_REGINFO sections don't assert the correct size and
	report an error instead.

2018-02-05  Maciej W. Rozycki  <macro@mips.com>

	* elf.c (_bfd_elf_write_object_contents): Propagate a failure
	status from `->elf_backend_section_processing'.

2018-02-02  Jim Wilson  <jimw@sifive.com>

	PR ld/22756
	* elfnn-riscv.c (riscv_relax_delete_bytes): New parameter link_info.
	If link_info->wrap_hash, check for a duplicate symbol and ignore.
	(_bfd_riscv_relax_call, bfd_riscv_relax_lui, _bfd_riscv_relax_tls_le):
	Pass new argument to riscv_relax_delete_bytes.
	(_bfd_riscv_relax_align, _bfd_riscv_relax_delete): Likewise.  Remove
	ATTRIBUTE_UNUSED from link_info parameter.

2018-02-02  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (ppc64_elf_relocate_section): Don't relocate nops
	emitted for toc sequence optimization.  Set and use "howto" later.

2018-02-01  Simon Marchi  <simon.marchi@ericsson.com>

	* elf64-ppc.c (ppc64_elf_archive_symbol_lookup): Avoid pointer
	arithmetic on NULL pointer.
	* elflink.c (_bfd_elf_archive_symbol_lookup,
	elf_link_add_archive_symbols): Likewise.

2018-01-31  Michael Matz  <matz@suse.de>

	* elflink.c (bfd_elf_define_start_stop): Fix check of
	def_dynamic.

2018-01-31  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/21964
	* elflink.c (bfd_elf_define_start_stop): Check if __start and
	__stop symbols are referenced by shared objects.

2018-01-30  Alan Modra  <amodra@gmail.com>

	PR 22758
	* elf.c (_bfd_elf_map_sections_to_segments): Don't start a new
	segment when demand paged with lma on the same page.  Test this
	before load/non-load, executable/non-executable,
	writable/non-writable tests and simplify.  Delete bogus relro
	condition in writable/non-writable test.  Delete outdated
	comment.  Formatting.

2018-01-30  Alan Modra  <amodra@gmail.com>

	* elflink.c (bfd_elf_define_start_stop): Make __start and __stop
	symbols dynamic.

2018-01-29  Alan Modra  <amodra@gmail.com>

	PR 22741
	* coffgen.c (coff_pointerize_aux): Ensure auxent tagndx is in
	range before converting to a symbol table pointer.

2018-01-27  Nick Clifton  <nickc@redhat.com>

	* po/ru.po: Updated Russian translation.

2018-01-26  Alan Modra  <amodra@gmail.com>

	* elflink.c (bfd_elf_define_start_stop): Override symbols when
	they are defined dynamically.

2018-01-26  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (ppc64_elf_size_stubs): Iterate sizing when
	.branch_lt changes size.

2018-01-25  Alan Modra  <amodra@gmail.com>

	PR 22746
	* elfcode.h (elf_object_p): Avoid integer overflow.

2018-01-25  Eric Botcazou  <ebotcazou@adacore.com>

	PR ld/22727
	* elfxx-sparc.c (_bfd_sparc_elf_check_relocs) <R_SPARC_TLS_GD_CALL>:
	Do a mere lookup of the __tls_get_addr symbol instead of adding it.

	Revert
	2017-10-19  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22263
	* elfxx-sparc.c (sparc_elf_tls_transition): Replace
	bfd_link_pic with !bfd_link_executable, !bfd_link_pic with
	bfd_link_executable for TLS check.
	(_bfd_sparc_elf_check_relocs): Likewise.
	(allocate_dynrelocs): Likewise.
	(_bfd_sparc_elf_relocate_section): Likewise.

2018-01-24  Renlin Li  <renlin.li@arm.com>

	* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Add support for
	BFD_RELOC_AARCH64_MOVW_PREL_G0, BFD_RELOC_AARCH64_MOVW_PREL_G0_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G1, BFD_RELOC_AARCH64_MOVW_PREL_G1_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G2, BFD_RELOC_AARCH64_MOVW_PREL_G2_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G3.
	* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Likewise.
	(_bfd_aarch64_elf_resolve_relocation): Likewise.

2018-01-24  Renlin Li  <renlin.li@arm.com>

	* reloc.c: Add BFD_RELOC_AARCH64_MOVW_PREL_G0,
	BFD_RELOC_AARCH64_MOVW_PREL_G0_NC, BFD_RELOC_AARCH64_MOVW_PREL_G1,
	BFD_RELOC_AARCH64_MOVW_PREL_G1_NC, BFD_RELOC_AARCH64_MOVW_PREL_G2,
	BFD_RELOC_AARCH64_MOVW_PREL_G2_NC, BFD_RELOC_AARCH64_MOVW_PREL_G3.
	* elfnn-aarch64.c (elfNN_aarch64_howto_table): Add entries for
	BFD_RELOC_AARCH64_MOVW_PREL_G0, BFD_RELOC_AARCH64_MOVW_PREL_G0_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G1, BFD_RELOC_AARCH64_MOVW_PREL_G1_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G2, BFD_RELOC_AARCH64_MOVW_PREL_G2_NC,
	BFD_RELOC_AARCH64_MOVW_PREL_G3.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

2018-01-23  Maciej W. Rozycki  <macro@mips.com>

	* elfxx-mips.c (_bfd_mips_elf_final_link): Update a stale
	`mips_elf32_section_processing' comment reference.

2018-01-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22721
	* elfxx-x86.c (_bfd_x86_elf_link_check_relocs): Check the
	versioned __tls_get_addr symbol.

2018-01-19  Nick Clifton  <nickc@redhat.com>

	* po/fr.po: Updated French translation.

2018-01-18  Alan Modra  <amodra@gmail.com>

	* elf32-ppc.c (ppc_elf_create_glink): Correct alignment of .glink.
	* elf64-ppc.c (ppc64_elf_size_stubs): Handle negative plt_stub_align.
	(ppc64_elf_build_stubs): Likewise.

2018-01-17  Nick Clifton  <nickc@redhat.com>

	* po/ru.po: Updated Russian translation.
	* po/uk/po: Updated Ukranian translation.

2018-01-17  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (ppc64_elf_build_stubs): Silence gcc warning.

2018-01-17  Alan Modra  <amodra@gmail.com>

	* elf32-ppc.c (GLINK_ENTRY_SIZE): Handle speculation barrier.
	(CRSETEQ, BEQCTRM): Define.
	(is_nonpic_glink_stub): Don't check bctr.
	(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
	(ppc_elf_relax_section): Size speculation barrier.
	(output_bctr): New function.
	(write_glink_stub): Use output_bctr.
	(ppc_elf_relocate_section): Use output_bctr for long branch stub.
	(ppc_elf_finish_dynamic_symbol): Likewise.
	(ppc_elf_finish_dynamic_sections): Use output_bctr.
	* elf32-ppc.h (struct ppc_elf_params): Add speculate_indirect_jumps.
	* elf64-ppc.c (CRSETEQ, BEQCTRM, BEQCTRLM): Define.
	(GLINK_PLTRESOLVE_SIZE): Size speculation barrier.
	(size_global_entry_stubs): Handle speculation barrier sizing.
	(plt_stub_size): Likewise.
	(output_bctr): New function.
	(build_plt_stub, build_tls_get_addr_stub): Output speculation
	barrier.
	(ppc_build_one_stub): Likewise for ppc_stub_plt_branch.
	(ppc_size_one_stub): Size speculation barrier in ppc_stub_plt_branch.
	(build_global_entry_stubs): Output speculation barrier.
	(ppc64_elf_build_stubs): Likewise in __glink_PLTresolve stub.
	* elf64-ppc.h (struct ppc64_elf_params): Add speculate_indirect_jumps.

2018-01-17  Alan Modra  <amodra@gmail.com>

	* elf32-ppc.c (GLINK_ENTRY_SIZE): Add parameters, handle
	__tls_get_addr_opt, and alignment sizing.
	(TLS_GET_ADDR_GLINK_SIZE): Delete.
	(is_nonpic_glink_stub): Don't use GLINK_ENTRY_SIZE.
	(ppc_elf_get_synthetic_symtab): Recognize stubs spaced at 4, 6,
	or 8 insns.
	(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
	(allocate_dynrelocs): Use new GLINK_ENTRY_SIZE.
	(ppc_elf_size_dynamic_sections): Likewise.  Size branch table
	by PLT reloc count.
	(write_glink_stub): Handle __tls_get_addr_opt stub.
	Pad out to size given by GLINK_ENTRY_SIZE.
	(ppc_elf_relocate_section): Adjust write_glink_stub call.
	(ppc_elf_finish_dynamic_symbol): Likewise.
	(ppc_elf_finish_dynamic_sections): Write PLTresolve without using
	insn array since so many need rewriting.
	* elf32-ppc.h (struct ppc_elf_params): Add plt_stub_align.
	* elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Rename from
	GLINK_CALL_STUB_SIZE.  Add htab param and evaluate to size without
	nops.  Adjust all uses.
	(ppc64_elf_get_synthetic_symtab): Don't use GLINK_CALL_STUB_SIZE
	in glink_vma calculation.
	(struct ppc_link_hash_table): Add global_entry section pointer.
	(create_linkage_sections): Create separate section for global
	entry stubs.
	(PPC_LO, PPC_HI, PPC_HA): Move earlier.
	(size_global_entry_stubs): Handle sizing for aligned stubs.
	(ppc64_elf_size_dynamic_sections): Handle global_entry alloc,
	and don't stash end of glink branch table in rawsize.
	(ppc_build_one_stub): Rewrite stub size calculations.
	(build_global_entry_stubs): Use new section.
	(ppc64_elf_build_stubs): Don't pad __glink_PLTresolve with nops.
	Build lazy link stubs out to end of section.  Build global entry
	stubs in new section.

2018-01-15  Nick Clifton  <nickc@redhat.com>

	* po/uk.po: Updated Ukranian translation.

2018-01-13  Nick Clifton  <nickc@redhat.com>

	* po/bfd.pot: Regenerated.

2018-01-13  Nick Clifton  <nickc@redhat.com>

	* version.m4: Bump version to 2.30.51
	* configure: Regenerate.

2018-01-13  Nick Clifton  <nickc@redhat.com>

	2.30 branch created.

2018-01-12  Jens Widell  <jl@opera.com>

	* elf.c (setup_group): Optimize search for group by remembering
	last found group and restarting search at that index.
	* elf-bfd.h (struct elf_obj_tdata): Add group_search_offset field.

2018-01-12  Gunther Nikl  <gnikl@users.sourceforge.net>

	* aoutx.h (aout_link_check_ar_symbols): Remove default and handle
	bfd_link_common_skip_none in switch.

2018-01-12  Alan Modra  <amodra@gmail.com>

	PR ld/22649
	* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Ignore dynamic
	references on forced local symbols.

2018-01-12  Vlad Ivanov  <vlad@ivanov.email>

	* elfxx-mips.c (_bfd_mips_elf_final_link): Notify user when
	.reginfo section has wrong size.

2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22393
	* elf.c (_bfd_elf_map_sections_to_segments): When generating
	separate code and read-only data LOAD segments, create a new
	LOAD segment if the previous section contains text and the
	current section doesn't or vice versa.  Don't put a writable
	section in a read-only segment if there is a RELRO segment.

2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22649
	* elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Ignore dynamic
	references on forced local symbols.

2018-01-11  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/22677
	* elflink.c (bfd_elf_gc_sections): Keep all PREINIT_ARRAY,
	INIT_ARRAY as well as FINI_ARRAY sections for ld -r --gc-section.

2017-09-27  Kuan-Lin Chen  <kuanlinchentw@gmail.com>

	PR 22662
	* elf32-nds32.c (nds32_elf_relax_loadstore): Fix a typographical error.

2018-01-03  John Baldwin  <jhb@FreeBSD.org>

	* elf.c (elfcore_grok_freebsd_note): Handle
	NT_FREEBSD_PROCSTAT_PROC, NT_FREEBSD_PROCSTAT_FILES, and
	NT_FREEBSD_PROCSTAT_VMMAP.

2018-01-03  Alan Modra  <amodra@gmail.com>

	Update year range in copyright notice of all files.

For older changes see ChangeLog-2017
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