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

2016-03-04  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19579
	* elflink.c (_bfd_elf_merge_symbol): Treat common symbol in
	executable as definition if the new definition comes from a
	shared library.

2016-03-02  Alan Modra  <amodra@gmail.com>

	* Makefile.in: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.

2016-02-29  Cupertino Miranda  <cmiranda@synopsys.com>

	* elf32-arc.c (elf_arc_relocate_section): Added rules to fix the
	relocation addend when sections get merged.

2016-02-29  Cupertino Miranda <Cupertino.Miranda@synopsys.com>

	* elf32-arc.c (arc_elf_final_write_processing): Add condition to
	the flag change.
        (elf_arc_relocate_section): Fixes and conditions to support PIE.
	Assert for code sections dynamic relocs.

2016-02-26  Renlin Li  <renlin.li@arm.com>

	* elfnn-aarch64.c (elfNN_aarch64_howto_table): Fix signed overflow
	check for MOVW_SABS_G0, MOVW_SABS_G1, MOVW_SABS_G2.

2016-02-26  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19609
	* elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for
	load with locally bound symbols if PIC is false or there is no
	base register.  Optimize branch to 0 if PIC is false.
	(elf_i386_relocate_section): Don't generate dynamic relocations
	against undefined weak symbols if PIC is false.
	* elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization
	if we can't estimate relocation overflow with --no-relax.
	Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound
	symbols if PIC is false.  Optimize branch to 0 if PIC is false.
	(elf_x86_64_relocate_section): Don't generate dynamic relocations
	against undefined weak symbols if PIC is false.

2016-02-26  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19645
	* bfd.c (bfd): Change flags to 20 bits.
	(BFD_CONVERT_ELF_COMMON): New.
	(BFD_USE_ELF_STT_COMMON): Likewise.
	(BFD_FLAGS_SAVED): Add BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.
	(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
	* configure.ac: Remove --enable-elf-stt-common.
	* elf.c (swap_out_syms): Choose STT_COMMON or STT_OBJECT for
	common symbol depending on BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.
	* elfcode.h (elf_slurp_symbol_table): Set BSF_ELF_COMMON for
	STT_COMMON.
	* elflink.c (bfd_elf_link_mark_dynamic_symbol): Also check
	STT_COMMON.
	(elf_link_convert_common_type): New function.
	(elf_link_output_extsym): Choose STT_COMMON or STT_OBJECT for
	common symbol depending on BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.  Set sym.st_info after sym.st_shndx.
	* elfxx-target.h (TARGET_BIG_SYM): Add BFD_CONVERT_ELF_COMMON
	and BFD_USE_ELF_STT_COMMON to object_flags.
	(TARGET_LITTLE_SYM): Likewise.
	* syms.c (BSF_KEEP_G): Renamed to ...
	(BSF_ELF_COMMON): This.
	* bfd-in2.h: Regenerated.
	* config.in: Likewise.
	* configure: Likewise.

2016-02-26  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19636
	PR ld/19704
	PR ld/19719
	* elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New.
	(elf_i386_link_hash_entry): Add has_got_reloc and
	has_non_got_reloc.
	(elf_i386_link_hash_table): Add interp.
	(elf_i386_link_hash_newfunc): Initialize has_got_reloc and
	has_non_got_reloc.
	(elf_i386_copy_indirect_symbol): Copy has_got_reloc and
	has_non_got_reloc.
	(elf_i386_check_relocs): Set has_got_reloc and has_non_got_reloc.
	(elf_i386_fixup_symbol): New function.
	(elf_i386_pie_finish_undefweak_symbol): Likewise.
	(elf_i386_allocate_dynrelocs): Don't allocate space for dynamic
	relocations and discard relocations against resolved undefined
	weak symbols in executable.  Don't make resolved undefined weak
	symbols in executable dynamic.  Keep dynamic non-GOT/non-PLT
	relocation against undefined weak symbols in PIE.
	(elf_i386_size_dynamic_sections): Set interp to .interp section.
	(elf_i386_relocate_section): Don't generate dynamic relocations
	against resolved undefined weak symbols in PIE, except for
	R_386_PC32.
	(elf_i386_finish_dynamic_symbol): Keep PLT/GOT entries without
	dynamic PLT/GOT relocations for resolved undefined weak symbols.
	Don't generate dynamic relocation against resolved undefined weak
	symbol in executable.
	(elf_i386_finish_dynamic_sections): Call
	elf_i386_pie_finish_undefweak_symbol on all symbols in PIE.
	(elf_backend_fixup_symbol): New.
	* elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New.
	(elf_x86_64_link_hash_entry): Add has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_link_hash_table): Add interp.
	(elf_x86_64_link_hash_newfunc): Initialize has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_copy_indirect_symbol): Copy has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_check_relocs): Set has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_fixup_symbol): New function.
	(elf_x86_64_pie_finish_undefweak_symbol): Likewise.
	(elf_x86_64_allocate_dynrelocs): Don't allocate space for dynamic
	relocations and discard relocations against resolved undefined
	weak symbols in executable.  Don't make resolved undefined weak
	symbols in executable dynamic.
	(elf_x86_64_size_dynamic_sections): Set interp to .interp section.
	(elf_x86_64_relocate_section): Check relocation overflow for
	dynamic relocations against unresolved weak undefined symbols.
	Don't generate dynamic relocations against resolved weak
	undefined symbols in PIE.
	(elf_x86_64_finish_dynamic_symbol): Keep PLT/GOT entries without
	dynamic PLT/GOT relocations for resolved undefined weak symbols.
	Don't generate dynamic relocation against resolved undefined weak
	symbol in executable.
	(elf_x86_64_finish_dynamic_sections): Call
	elf_x86_64_pie_finish_undefweak_symbol on all symbols in PIE.
	(elf_backend_fixup_symbol): New.

2016-02-26  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (create_linkage_sections): Create sfpr when
	save_restore_funcs, rest of sections when not relocatable.
	(ppc64_elf_init_stub_bfd): Always call create_linkage_sections.
	(sfpr_define): Define all symbols on emitted code.
	(ppc64_elf_func_desc_adjust): Adjust for sfpr now being created
	when relocatable.  Move sfpr_define loop earlier.

2016-02-24  H.J. Lu  <hongjiu.lu@intel.com>

	* elf64-x86-64.c (elf_x86_64_need_pic): New function.
	(elf_x86_64_relocate_section): Use it.  Replace
	x86_64_elf_howto_table[r_type] with howto.

2016-02-24  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19698
	* elflink.c (bfd_elf_record_link_assignment): Set versioned if
	symbol version is unknown.

2016-02-24  H.J. Lu  <hongjiu.lu@intel.com>

	* elf32-i386.c (elf_i386_allocate_dynrelocs): Set plt_got.offset
	to (bfd_vma) -1 when setting needs_plt to 0.
	* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Likewise.

2016-02-23  H.J. Lu  <hongjiu.lu@intel.com>

	* elflink.c (bfd_elf_record_link_assignment): Check for shared
	library, instead of PIC, and don't check PDE when making linker
	assigned symbol dynamic.

2016-02-23  Faraz Shahbazker  <faraz.shahbazker@imgtec.com>

	* bfd/elfxx-mips.c (_bfd_mips_post_process_headers): Increment
	ABIVERSION for non-executable stack.

2016-02-23  Rich Felker  <bugdal@aerifal.cx>

	PR target/19516
	* elf32-microblaze.c (microblaze_elf_finish_dynamic_symbol):
	Always produce a RELATIVE reloc for a local symbol.

2016-02-23  Hans-Peter Nilsson  <hp@axis.com>

	Fix test-case ld-elf/pr19617b
	* elf32-cris.c (elf_cris_discard_excess_program_dynamics): Don't
	discard unused non-function symbols when --dynamic-list-data.

2016-02-22  H.J. Lu  <hongjiu.lu@intel.com>

	* elflink.c (_bfd_elf_link_renumber_dynsyms): Always create the
	dynsym section, even if it is empty, with dynamic sections.

2016-02-22  H.J. Lu  <hongjiu.lu@intel.com>

	* syms.c: Remove BSF_COMMON from comments.
	* bfd-in2.h: Regenerated.

2016-02-22  Jiong Wang  <jiong.wang@arm.com>

	* elfnn-aarch64. (aarch64_type_of_stub): Remove redundation calcuation
	for destination.  Remove useless function parameters.
	(elfNN_aarch64_size_stubs): Update parameters for aarch64_type_of_stub.

2016-02-19  Nick Clifton  <nickc@redhat.com>

	PR ld/19629
	* aoutx.h (aout_link_add_symbols): Check for out of range string
	table offsets.

	PR ld/19628
	* reloc.c (bfd_generic_get_relocated_section_contents): Stop
	processing if we encounter a reloc without an associated symbol.

2016-02-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19617
	* elflink.c (elf_link_add_object_symbols): Always create dynamic
	sections for -E/--dynamic-list.

2016-02-17  H.J. Lu  <hongjiu.lu@intel.com>

	* elf64-x86-64.c (elf_backend_omit_section_dynsym): New.  Defined
	to bfd_true.

2016-02-16  Joseph Myers  <joseph@codesourcery.com>

	* plugin.c (plugin_vec): Set match priority to 255.
	* format.c (bfd_check_format_matches) [BFD_SUPPORTS_PLUGINS]: When
	matching against the plugin vector, take priority from there not
	from TEMP.

2016-02-15  Nick Clifton  <nickc@redhat.com>

	* elf-bfd.h (struct bfd_elf_special_section): Use unsigned values
	for length and type fields.  Use a signed value for the
	suffix_length field.

2016-02-10  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19601
	* elf32-i386.c (elf_i386_relocate_section): Mask off the least
	significant bit in GOT offset for R_386_GOT32X.

2016-02-10  Nick Clifton  <nickc@redhat.com>

	PR 19405
	* elf32-nios2.c (nios2_elf32_install_imm16): Allow for signed
	immediate values.
	* elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Limit the
	number of messages about FDE encoding preventing .eh_frame_hdr
	generation.

2016-02-09  Nick Clifton  <nickc@redhat.com>

	* oasys.c (oasys_archive_p): Fix indentation.
	* elf32-nds32.c (nds32_elf_relax_section): Use an unsigned
	constant for left shifting.

	* elfnn-aarch64.c (elfNN_aarch64_relocate_section): Add a more
	helpful warning message to explain why certain AArch64 relocs
	might overflow.

2016-02-05  Simon Marchi  <simon.marchi@ericsson.com>

	* pe-mips.c (coff_mips_reloc): Fix formatting.

2016-02-05  Cupertino Miranda  <Cupertino.Miranda@synopsys.com>

	* cpu-arc.c: Change default archure from bfd_mach_arc_arcv2
	to bfd_mach_arc_arc600.

2016-02-04  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (ppc64_elf_relocate_section): Adjust last patch
	for big-endian.

2016-02-02  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19542
	* elf64-x86-64.c (elf_x86_64_convert_load): Store the estimated
	distances in the compressed_size field of the output section.

2016-02-02  Alan Modra  <amodra@gmail.com>

	* elf64-ppc.c (ppc64_elf_relocate_section): Further restrict
	ELFv2 entry optimization.

2016-02-02  H.J. Lu  <hongjiu.lu@intel.com>

	PR binutils/19547
	* elf.c (assign_section_numbers): Clear HAS_RELOC if there are
	no relocations in relocatable files.

2016-02-01  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19553
	* elflink.c (elf_link_add_object_symbols): Don't add DT_NEEDED
	if a symbol from a library loaded via DT_NEEDED doesn't match
	the symbol referenced by regular object.

2016-02-01  Nathaniel Smith  <njs@pobox.com>

	* peicode.h (pe_ILF_build_a_bfd): Create an import symbol for both
	CODE and DATA.

2016-02-01  Alan Modra  <amodra@gmail.com>

	* elf64-x86-64.c (elf_x86_64_get_plt_sym_val): Don't abort on
	an out of range reloc_index.
	* elf32-i386.c (elf_i386_get_plt_sym_val): Likewise.

2016-02-01  Kamil Rytarowski  <n54@gmx.com>

	* Makefile.am (OPTIONAL_BACKENDS): Add netbsd-core.lo.
	(OPTIONAL_BACKENDS_CFILES): Add netbsd-core.c.
	* Makefile.in: Regenerated.

2016-02-01  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* elf64-s390.c (elf_s390_reloc_name_lookup): Fix indentation.

2016-01-31  John David Anglin  <danglin@gcc.gnu.org>

	PR ld/19526
	* elf32-hppa.c (elf32_hppa_final_link): Don't sort non-regular output
	files.
	* elf64-hppa.c (elf32_hppa_final_link): Likewise.  Remove retval.

2016-01-30  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/19539
	* elf32-i386.c (elf_i386_reloc_type_class): Check relocation
	against STT_GNU_IFUNC symbol only with dynamic symbols.
	* elf64-x86-64.c (elf_x86_64_reloc_type_class): Likewise.

2016-01-28  H.J. Lu  <hongjiu.lu@intel.com>

	PR binutils/19523
	* dwarf2.c (_bfd_dwarf2_slurp_debug_info): Set BFD_DECOMPRESS to
	decompress debug sections.

2016-01-25  Maciej W. Rozycki  <macro@imgtec.com>

	* elf32-arc.c (elf_arc_finish_dynamic_symbol): Rename `index' to
	`dynindx'.

2016-01-25  Nick Clifton  <nickc@redhat.com>

	PR target/19435
	* mach-o.c (bfd_mach_o_close_and_cleanup): Suppress code to free
	dsym filename buffer.

2016-01-24  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (BZ16_REG_FIELD): Simplify calculation.

2016-01-24  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (BZ16_REG): Correct calculation.

2016-01-21  Nick Clifton  <nickc@redhat.com>

	* elf32-arc.c (ADD_RELA): Fix compile time warning errors by
	changing the type of _loc to be bfd_byte *.
	(elf_arc_finish_dynamic_symbol): Likewise.

2016-01-21  Nick Clifton  <nickc@redhat.com>

	PR ld/19455
	* elf32-arm.c (elf32_arm_create_dynamic_sections): Set the ELF
	class of the linker stub bfd.
	(elf32_arm_check_relocs): Skip check for pic format after
	processing a vxWorks R_ARM_ABS12 reloc.
	* elflink.c (bfd_elf_final_link): Check for ELFCLASSNONE when
	reporting a class mismatch.

2016-01-21  Jiong Wang  <jiong.wang@arm.com>

	* elfnn-aarch64.c (aarch64_type_of_stub): Allow insert long branch
	veneer for sym_sec != input_sec.
	(elfNN_aarch64_size_stub): Support STT_SECTION symbol.
	(elfNN_aarch64_final_link_relocate): Take rela addend into account when
	calculation destination.

2016-01-21  Alan Modra  <amodra@gmail.com>

	* elf-linux-core.h (swap_linux_prpsinfo32_out): New function.
	(swap_linux_prpsinfo64_out): New function.
	(LINUX_PRPSINFO32_SWAP_FIELDS): Delete.
	(LINUX_PRPSINFO64_SWAP_FIELDS): Delete.
	* elf.c (elfcore_write_linux_prpsinfo32): Adjust.  Don't memset.
	(elfcore_write_linux_prpsinfo64): Likewise.
	* elf32-ppc.c (swap_ppc_linux_prpsinfo32_out): New function.
	(PPC_LINUX_PRPSINFO32_SWAP_FIELDS): Delete.
	(elfcore_write_ppc_linux_prpsinfo32): Adjust.  Don't memset.

2016-01-21  Alan Modra  <amodra@gmail.com>

	* elf-linux-core.h: Rename from elf-linux-psinfo.h.
	* elf.c: Adjust #include.
	* elf32-ppc.c: Don't #include elf-linux-psinfo.h
	* Makefile.am (SOURCE_HFILES): Update.
	* Makefile.in: Regenerate.
	* po/SRC-PORFILES.in: Regenerate.

2016-01-21  Alan Modra  <amodra@gmail.com>

	* configure.ac: Move corefile selection later in file.  Move
	tdefaults code immediately after other target vector code.
	* configure: Regenerate.

2016-01-20  Mickael Guene  <mickael.guene@st.com>

	* elf32-arm.c (elf32_arm_special_sections): Remove catch of noread
	section using '.text.noread' pattern.

2016-01-19  John Baldwin  <jhb@FreeBSD.org>

	* elf.c (elfcore_grok_note): Recognize NT_FREEBSD_THRMISC notes.

2016-01-18  Miranda Cupertino  <Cupertino.Miranda@synopsys.com>
	    Zissulescu Claudiu  <Claudiu.Zissulescu@synopsys.com>

	* arc-plt.def: New file.
	* arc-plt.h: Likewise.
	* elf32-arc.c (elf_arc_abs_plt0_entry, elf_arc_abs_pltn_entry,
		       elf_arcV2_abs_plt0_entry, elf_arcV2_abs_pltn_entry,
		       elf_arc_pic_plt0_entry, elf_arc_pic_pltn_entry,
		       elf_arcV2_pic_plt0_entry, elf_arcV2_pic_pltn_entry): Remove.
	(name_for_global_symbol): Added.
	(ADD_RELA): Helper to create dynamic relocs.
	(new_got_entry_to_list): Create a new got entry in linked list.
	(symbol_has_entry_of_type): Search for specific type of entry in
	list.
	(is_reloc_for_GOT): return FALSE for any TLS related relocs.
	(is_reloc_for_TLS, arc_elf_set_private_flags)
	(arc_elf_print_private_bfd_data, arc_elf_copy_private_bfd_data)
	(arc_elf_merge_private_bfd_data): New functions.
	(debug_arc_reloc): Cleaned debug info printing.
	(PDATA reloc): Changed not to perform address alignment.
	(reverse_me): Added. Fix for ARC_32 relocs.
	(arc_do_relocation): Return bfd_reloc_of when no relocation should
	occur.
	(arc_get_local_got_ents): Renamed from arc_get_local_got_offsets.
	Changed function to access an array of list of GOT entries instead
	of just an array of offsets.
	(elf_arc_relocate_section): Added support for PIC and TLS related relocations.
	(elf_arc_check_relocs): Likewise.
	(elf_arc_adjust_dynamic_symbol, elf_arc_finish_dynamic_symbol,
	(elf_arc_finish_dynamic_sections): Likewise
	(arc_create_dynamic_sections): Modified conditions to create
	dynamic sections.
	(ADD_SYMBOL_REF_SEC_AND_RELOC): New macro.
	(plt_do_relocs_for_symbol, relocate_plt_for_symbol)
	(relocate_plt_for_entry): Changed to support new way to define PLT
	related code.
	(add_symbol_to_plt): Likewise.
	(arc_elf_link_hash_table_create): New function.

2016-01-18  Nick Clifton  <nickc@redhat.com>

	PR ld/19440
	* coff-rs6000.c (_bfd_xcoff_swap_sym_in): Sign extend external
	section number into internal section number.
	* coff64-rs6000.c (_bfd_xcoff64_swap_sym_in): Likewise.
	* coffswap.h (coff_swap_sym_in): Likewise.
	* peXXigen.c (_bfd_XXi_swap_sym_in): Likewise.
	* coffcode.h (_coff_bigobj_swap_sym_in): Make sure that internal
	section number field is big enough to hold the external value.

2016-01-17  Alan Modra  <amodra@gmail.com>

	* configure: Regenerate.

2016-01-12  Yury Usishchev  <y.usishchev@samsung.com>

	* elf32-arm.c (elf32_arm_fix_exidx_coverage): Insert cantunwind
	when address in first unwind entry does not match start of
	section.

2016-01-08  Richard Sandiford  <richard.sandiford@arm.com>
	    Jiong Wang  <jiong.wang@arm.com>

	PR ld/19368
	* elf32-arm.c (elf32_arm_reloc_type_class): Map R_ARM_IRELATIVE to
	reloc_class_ifunc.

2016-01-06  Andrew Burgess  <andrew.burgess@embecosm.com>

	* elf32-arc.c (reloc_type_to_name): Change ARC_RELOC_HOWTO to
	place 'R_' before the reloc name returned.
	(elf_arc_howto_table): Change ARC_RELOC_HOWTO to place 'R_' before
	the relocation string.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (mips_elf_merge_obj_abiflags): New function,
	factored out from...
	(_bfd_mips_elf_merge_private_bfd_data): ... here.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Move
	attribute check after ELF file header flag check.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (mips_elf_merge_obj_attributes): Propagate the
	return status from `_bfd_elf_merge_object_attributes'.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (mips_elf_merge_obj_e_flags): New function,
	factored out from...
	(_bfd_mips_elf_merge_private_bfd_data): ... here.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Fold the
	handling of input MIPS ABI flags together.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Suppress
	attribute checks for null input.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Use local
	pointers to target data.

2016-01-04  Maciej W. Rozycki  <macro@imgtec.com>

	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Correct
	an FP ABI warning.

2016-01-01  Alan Modra  <amodra@gmail.com>

	Update year range in copyright notice of all files.

For older changes see ChangeLog-2015 and doc/ChangeLog-0415
\f
Copyright (C) 2016 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.

Local Variables:
mode: change-log
left-margin: 8
fill-column: 74
version-control: never
End: