ba21f56464
https://bugzilla.redhat.com/show_bug.cgi?id=1523457 I haven't analyzed this myself, I'm relying on Nick's excellent analysis. What I believe is happening is that after some number of stub sizing iterations, a long-branch stub needs to be converted to a plt-branch, but either due to stub alignment or other stubs shrinking in size, the stub group section size doesn't change. That means we exit from ppc64_elf_size_stubs after sizing with an incorrect layout, in fact the additional .branch_lt entry overlays .got! Since .TOC. is normally set to .got + 0x8000 the stub sizing code decides that entry is within +/-32k of the TOC pointer and so a three insn stub is sufficient. When we come to build the stubs using a correct non-overlaying layout, a four insn plt-branch stub is generated and the stub group size doesn't match that calculated earlier. * elf64-ppc.c (ppc64_elf_size_stubs): Iterate sizing when .branch_lt changes size.
234 lines
8.0 KiB
Plaintext
234 lines
8.0 KiB
Plaintext
2018-01-26 Alan Modra <amodra@gmail.com>
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* elf64-ppc.c (ppc64_elf_size_stubs): Iterate sizing when
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.branch_lt changes size.
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2018-01-25 Alan Modra <amodra@gmail.com>
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PR 22746
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* elfcode.h (elf_object_p): Avoid integer overflow.
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2018-01-25 Eric Botcazou <ebotcazou@adacore.com>
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PR ld/22727
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* elfxx-sparc.c (_bfd_sparc_elf_check_relocs) <R_SPARC_TLS_GD_CALL>:
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Do a mere lookup of the __tls_get_addr symbol instead of adding it.
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Revert
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2017-10-19 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/22263
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* elfxx-sparc.c (sparc_elf_tls_transition): Replace
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bfd_link_pic with !bfd_link_executable, !bfd_link_pic with
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bfd_link_executable for TLS check.
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(_bfd_sparc_elf_check_relocs): Likewise.
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(allocate_dynrelocs): Likewise.
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(_bfd_sparc_elf_relocate_section): Likewise.
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2018-01-24 Renlin Li <renlin.li@arm.com>
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* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Add support for
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BFD_RELOC_AARCH64_MOVW_PREL_G0, BFD_RELOC_AARCH64_MOVW_PREL_G0_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G1, BFD_RELOC_AARCH64_MOVW_PREL_G1_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G2, BFD_RELOC_AARCH64_MOVW_PREL_G2_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G3.
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* elfxx-aarch64.c (_bfd_aarch64_elf_put_addend): Likewise.
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(_bfd_aarch64_elf_resolve_relocation): Likewise.
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2018-01-24 Renlin Li <renlin.li@arm.com>
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* reloc.c: Add BFD_RELOC_AARCH64_MOVW_PREL_G0,
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BFD_RELOC_AARCH64_MOVW_PREL_G0_NC, BFD_RELOC_AARCH64_MOVW_PREL_G1,
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BFD_RELOC_AARCH64_MOVW_PREL_G1_NC, BFD_RELOC_AARCH64_MOVW_PREL_G2,
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BFD_RELOC_AARCH64_MOVW_PREL_G2_NC, BFD_RELOC_AARCH64_MOVW_PREL_G3.
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* elfnn-aarch64.c (elfNN_aarch64_howto_table): Add entries for
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BFD_RELOC_AARCH64_MOVW_PREL_G0, BFD_RELOC_AARCH64_MOVW_PREL_G0_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G1, BFD_RELOC_AARCH64_MOVW_PREL_G1_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G2, BFD_RELOC_AARCH64_MOVW_PREL_G2_NC,
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BFD_RELOC_AARCH64_MOVW_PREL_G3.
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* bfd-in2.h: Regenerate.
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* libbfd.h: Regenerate.
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2018-01-23 Maciej W. Rozycki <macro@mips.com>
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* elfxx-mips.c (_bfd_mips_elf_final_link): Update a stale
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`mips_elf32_section_processing' comment reference.
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2018-01-20 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/22721
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* elfxx-x86.c (_bfd_x86_elf_link_check_relocs): Check the
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versioned __tls_get_addr symbol.
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2018-01-19 Nick Clifton <nickc@redhat.com>
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* po/fr.po: Updated French translation.
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2018-01-18 Alan Modra <amodra@gmail.com>
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* elf32-ppc.c (ppc_elf_create_glink): Correct alignment of .glink.
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* elf64-ppc.c (ppc64_elf_size_stubs): Handle negative plt_stub_align.
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(ppc64_elf_build_stubs): Likewise.
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2018-01-17 Nick Clifton <nickc@redhat.com>
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* po/ru.po: Updated Russian translation.
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* po/uk/po: Updated Ukranian translation.
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2018-01-17 Alan Modra <amodra@gmail.com>
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* elf64-ppc.c (ppc64_elf_build_stubs): Silence gcc warning.
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2018-01-17 Alan Modra <amodra@gmail.com>
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* elf32-ppc.c (GLINK_ENTRY_SIZE): Handle speculation barrier.
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(CRSETEQ, BEQCTRM): Define.
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(is_nonpic_glink_stub): Don't check bctr.
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(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
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(ppc_elf_relax_section): Size speculation barrier.
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(output_bctr): New function.
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(write_glink_stub): Use output_bctr.
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(ppc_elf_relocate_section): Use output_bctr for long branch stub.
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(ppc_elf_finish_dynamic_symbol): Likewise.
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(ppc_elf_finish_dynamic_sections): Use output_bctr.
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* elf32-ppc.h (struct ppc_elf_params): Add speculate_indirect_jumps.
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* elf64-ppc.c (CRSETEQ, BEQCTRM, BEQCTRLM): Define.
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(GLINK_PLTRESOLVE_SIZE): Size speculation barrier.
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(size_global_entry_stubs): Handle speculation barrier sizing.
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(plt_stub_size): Likewise.
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(output_bctr): New function.
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(build_plt_stub, build_tls_get_addr_stub): Output speculation
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barrier.
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(ppc_build_one_stub): Likewise for ppc_stub_plt_branch.
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(ppc_size_one_stub): Size speculation barrier in ppc_stub_plt_branch.
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(build_global_entry_stubs): Output speculation barrier.
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(ppc64_elf_build_stubs): Likewise in __glink_PLTresolve stub.
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* elf64-ppc.h (struct ppc64_elf_params): Add speculate_indirect_jumps.
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2018-01-17 Alan Modra <amodra@gmail.com>
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* elf32-ppc.c (GLINK_ENTRY_SIZE): Add parameters, handle
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__tls_get_addr_opt, and alignment sizing.
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(TLS_GET_ADDR_GLINK_SIZE): Delete.
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(is_nonpic_glink_stub): Don't use GLINK_ENTRY_SIZE.
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(ppc_elf_get_synthetic_symtab): Recognize stubs spaced at 4, 6,
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or 8 insns.
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(ppc_elf_link_hash_table_create): Init new ppc_elf_params field.
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(allocate_dynrelocs): Use new GLINK_ENTRY_SIZE.
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(ppc_elf_size_dynamic_sections): Likewise. Size branch table
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by PLT reloc count.
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(write_glink_stub): Handle __tls_get_addr_opt stub.
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Pad out to size given by GLINK_ENTRY_SIZE.
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(ppc_elf_relocate_section): Adjust write_glink_stub call.
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(ppc_elf_finish_dynamic_symbol): Likewise.
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(ppc_elf_finish_dynamic_sections): Write PLTresolve without using
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insn array since so many need rewriting.
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* elf32-ppc.h (struct ppc_elf_params): Add plt_stub_align.
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* elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Rename from
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GLINK_CALL_STUB_SIZE. Add htab param and evaluate to size without
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nops. Adjust all uses.
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(ppc64_elf_get_synthetic_symtab): Don't use GLINK_CALL_STUB_SIZE
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in glink_vma calculation.
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(struct ppc_link_hash_table): Add global_entry section pointer.
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(create_linkage_sections): Create separate section for global
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entry stubs.
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(PPC_LO, PPC_HI, PPC_HA): Move earlier.
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(size_global_entry_stubs): Handle sizing for aligned stubs.
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(ppc64_elf_size_dynamic_sections): Handle global_entry alloc,
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and don't stash end of glink branch table in rawsize.
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(ppc_build_one_stub): Rewrite stub size calculations.
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(build_global_entry_stubs): Use new section.
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(ppc64_elf_build_stubs): Don't pad __glink_PLTresolve with nops.
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Build lazy link stubs out to end of section. Build global entry
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stubs in new section.
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2018-01-15 Nick Clifton <nickc@redhat.com>
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* po/uk.po: Updated Ukranian translation.
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2018-01-13 Nick Clifton <nickc@redhat.com>
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* po/bfd.pot: Regenerated.
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2018-01-13 Nick Clifton <nickc@redhat.com>
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* version.m4: Bump version to 2.30.51
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* configure: Regenerate.
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2018-01-13 Nick Clifton <nickc@redhat.com>
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2.30 branch created.
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2018-01-12 Jens Widell <jl@opera.com>
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* elf.c (setup_group): Optimize search for group by remembering
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last found group and restarting search at that index.
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* elf-bfd.h (struct elf_obj_tdata): Add group_search_offset field.
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2018-01-12 Gunther Nikl <gnikl@users.sourceforge.net>
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* aoutx.h (aout_link_check_ar_symbols): Remove default and handle
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bfd_link_common_skip_none in switch.
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2018-01-12 Alan Modra <amodra@gmail.com>
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PR ld/22649
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* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Ignore dynamic
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references on forced local symbols.
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2018-01-12 Vlad Ivanov <vlad@ivanov.email>
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* elfxx-mips.c (_bfd_mips_elf_final_link): Notify user when
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.reginfo section has wrong size.
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2018-01-11 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/22393
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* elf.c (_bfd_elf_map_sections_to_segments): When generating
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separate code and read-only data LOAD segments, create a new
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LOAD segment if the previous section contains text and the
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current section doesn't or vice versa. Don't put a writable
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section in a read-only segment if there is a RELRO segment.
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2018-01-11 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/22649
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* elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Ignore dynamic
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references on forced local symbols.
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2018-01-11 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/22677
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* elflink.c (bfd_elf_gc_sections): Keep all PREINIT_ARRAY,
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INIT_ARRAY as well as FINI_ARRAY sections for ld -r --gc-section.
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2017-09-27 Kuan-Lin Chen <kuanlinchentw@gmail.com>
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PR 22662
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* elf32-nds32.c (nds32_elf_relax_loadstore): Fix a typographical error.
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2018-01-03 John Baldwin <jhb@FreeBSD.org>
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* elf.c (elfcore_grok_freebsd_note): Handle
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NT_FREEBSD_PROCSTAT_PROC, NT_FREEBSD_PROCSTAT_FILES, and
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NT_FREEBSD_PROCSTAT_VMMAP.
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2018-01-03 Alan Modra <amodra@gmail.com>
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Update year range in copyright notice of all files.
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For older changes see ChangeLog-2017
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Copyright (C) 2018 Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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Local Variables:
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mode: change-log
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left-margin: 8
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fill-column: 74
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version-control: never
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End:
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