2018-04-25 12:57:37 +08:00
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2018-04-24 Cary Coutant <ccoutant@gmail.com>
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PR gold/20642
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PR gold/22820
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* gc.h (gc_process_relocs): Flag STT_SECTION symbols in symvec.
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* icf.cc (get_section_contents): For merge sections, ignore the
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addend for relocations against non-section symbols.
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2018-04-24 00:27:35 +08:00
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2018-04-24 Cary Coutant <ccoutant@gmail.com>
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PR gold/16504
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* dynobj.cc (Versions::symbol_section_contents): Don't set
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VERSYM_HIDDEN flag for undefined symbols.
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* symtab.cc (Symbol_table::add_from_object): Don't override default
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version definition with a different default version.
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* symtab.h (Symbol::from_dyn): New method.
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* testsuite/plugin_test.c (struct sym_info): Add ver field.
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(claim_file_hook): Pass symbol version to plugin API.
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(parse_readelf_line): Parse symbol version.
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* testsuite/Makefile.am (ver_test_pr16504): New test case.
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* testsuite/Makefile.in: Regenerate.
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* testsuite/ver_test_pr16504.sh: New test script.
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* testsuite/ver_test_pr16504_a.c: New source file.
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* testsuite/ver_test_pr16504_a.script: New version script.
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* testsuite/ver_test_pr16504_b.c: New source file.
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* testsuite/ver_test_pr16504_b.script: New version script.
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2018-04-20 01:20:08 +08:00
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2018-04-19 Cary Coutant <ccoutant@gmail.com>
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PR gold/23046
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* gc.h (gc_process_relocs): Pass target to
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scan.local_reloc_may_be_function_pointer.
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2018-04-18 17:48:56 +08:00
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2018-04-18 Nick Clifton <nickc@redhat.com>
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* po/es.po: Updated Spanish translation.
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2018-04-15 06:58:07 +08:00
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2018-04-14 Cary Coutant <ccoutant@gmail.com>
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PR gold/23046
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* gc.h (gc_process_relocs): Pass target to
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scan.global_reloc_may_be_function_pointer.
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2018-04-09 17:22:11 +08:00
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2018-04-09 Alan Modra <amodra@gmail.com>
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* configure: Regenerate.
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PowerPC inline PLT call support
In addition to the existing relocs we need two more to mark all
instructions in the call sequence, PLTCALL on the call itself (plus
the toc restore insn for ppc64), and PLTSEQ on others. All
relocations in a particular sequence have the same symbol.
Example ppc64 ELFv2 assembly:
.reloc .,R_PPC64_PLTSEQ,puts
std 2,24(1)
addis 12,2,puts@plt@ha # .reloc .,R_PPC64_PLT16_HA,puts
ld 12,puts@plt@l(12) # .reloc .,R_PPC64_PLT16_LO_DS,puts
.reloc .,R_PPC64_PLTSEQ,puts
mtctr 12
.reloc .,R_PPC64_PLTCALL,puts
bctrl
ld 2,24(1)
Example ppc32 -fPIC assembly:
addis 12,30,puts+32768@plt@ha # .reloc .,R_PPC_PLT16_HA,puts+0x8000
lwz 12,12,puts+32768@plt@l # .reloc .,R_PPC_PLT16_LO,puts+0x8000
.reloc .,R_PPC_PLTSEQ,puts+32768
mtctr 12
.reloc .,R_PPC_PLTCALL,puts+32768
bctrl
Marking sequences like this allows the linker to convert them to nops
and a direct call if the target symbol turns out to be local.
When the call is __tls_get_addr, each relocation shown above is paired
with an R_PPC*_TLSLD or R_PPC*_TLSGD reloc to additionally mark the
sequence for possible TLS optimization. The TLSLD or TLSGD relocs are
emitted first.
include/
* elf/ppc.h (R_PPC_PLTSEQ, R_PPC_PLTCALL): Define.
* elf/ppc64.h (R_PPC64_PLTSEQ, R_PPC64_PLTCALL): Define.
bfd/
* elf32-ppc.c (ppc_elf_howto_raw): Add PLTSEQ and PLTCALL howtos.
(is_plt_seq_reloc): New function.
(ppc_elf_check_relocs): Handle PLTSEQ and PLTCALL relocs.
(ppc_elf_tls_optimize): Handle inline plt call sequence.
(ppc_elf_relax_section): Handle PLTCALL reloc.
(ppc_elf_relocate_section): Nop out inline plt call sequence when
resolving locally.
* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_PLTSEQ and
R_PPC64_PLTCALL entries. Comment R_PPC64_TOCSAVE.
(has_tls_get_addr_call): Correct comment.
(is_branch_reloc): Add PLTCALL.
(is_plt_seq_reloc): New function.
(ppc64_elf_check_relocs): Handle PLT16_LO_DS reloc. Set
has_tls_reloc for R_PPC64_TLSGD and R_PPC64_TLSLD. Create plt
entry for R_PPC64_PLTCALL.
(ppc64_elf_tls_optimize): Handle inline plt call sequence.
(ppc_type_of_stub): Handle PLTCALL reloc.
(toc_adjusting_stub_needed): Likewise.
(ppc64_elf_relocate_section): Set "can_plt_call" for PLTCALL
reloc insn. Nop out inline plt call sequence when resolving
locally. Handle __tls_get_addr inline plt call optimization.
elfcpp/
* powerpc.h (R_POWERPC_PLTSEQ, R_POWERPC_PLTCALL): Define.
gold/
* powerpc.cc (Target_powerpc::Track_tls::maybe_skip_tls_get_addr_call):
Handle inline plt sequence relocs.
(Stub_table::Plt_stub_key::Plt_stub_key): Likewise.
(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Likewise.
(Target_powerpc::Relocate::relocate): Likewise.
2018-04-09 07:55:10 +08:00
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2018-04-09 Alan Modra <amodra@gmail.com>
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* powerpc.cc (Target_powerpc::Track_tls::maybe_skip_tls_get_addr_call):
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Handle inline plt sequence relocs.
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(Stub_table::Plt_stub_key::Plt_stub_key): Likewise.
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(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Likewise.
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(Target_powerpc::Relocate::relocate): Likewise.
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2018-04-09 07:52:53 +08:00
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2018-04-09 Alan Modra <amodra@gmail.com>
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* powerpc.cc (Target_powerpc::lplt_): New variable.
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(Target_powerpc::lplt_section): Associated accessor.
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(Target_powerpc::plt_off): Handle local non-ifunc symbols.
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(Target_powerpc::make_lplt_section): New function.
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(Target_powerpc::make_local_plt_entry): New function.
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(Powerpc_relobj::do_relocate_sections): Write out lplt.
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(Output_data_plt_powerpc::first_plt_entry_offset): Zero for lplt.
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(Output_data_plt_powerpc::add_local_entry): New function.
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(Output_data_plt_powerpc::do_write): Ignore lplt.
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(Target_powerpc::make_iplt_section): Make lplt first.
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(Target_powerpc::make_brlt_section): Make .branch_lt relro.
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(Target_powerpc::Scan::local): Handle PLT16 relocs.
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2018-04-09 07:51:10 +08:00
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2018-04-09 Alan Modra <amodra@gmail.com>
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* powerpc.cc (Target_powerpc::plt_off): New functions.
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(is_plt16_reloc): New function.
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(Stub_table::plt_off): Use Target_powerpc::plt_off.
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(Stub_table::plt_call_size): Use plt_off.
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(Stub_table::do_write): Likewise.
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(Target_powerpc::Scan::get_reference_flags): Return RELATIVE_REF
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for PLT16 relocations.
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(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Return true
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for PLT16 relocations.
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(Target_powerpc::Scan::global): Make a PLT entry for PLT16 relocations.
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(Target_powerpc::Relocate::relocate): Support PLT16 relocations.
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(Powerpc_scan_relocatable_reloc::global_strategy): Return RELOC_SPECIAL
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for ppc32 plt16 relocs.
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Further improve warnings for relocations referring to discarded sections.
Relocations referring to discarded sections are now treated as errors
instead of warnings.
Also with this patch, we will now print the section group signature and the
object file with the prevailing definition of that group along with the
name of the symbol that the relocation is referring to. This additional
information should be much more useful to anyone trying to track down
the source of such errors.
To do so, we now map each discarded section to the Kept_section info in
the Layout class, and defer the logic that maps a discarded section to
its counterpart in the kept group. This gives us the information we need
to identify the signature symbol given the discarded section, and the
name of the object file that provided the prevailing (i.e., first)
definition of that group.
gold/
* object.cc (Sized_relobj_file::include_section_group): Store
reference to Kept_section info for discarded comdat sections
regardless of size. Move size checking to map_to_kept_section.
(Sized_relobj_file::include_linkonce_section): Likewise.
(Sized_relobj_file::map_to_kept_section): Add section name parameter.
Insert size checking logic from above functions.
(Sized_relobj_file::find_kept_section_object): New method.
(Sized_relobj_file::get_symbol_name): New method.
* object.h (Sized_relobj_file::map_to_kept_section): Add section_name
parameter. Adjust all callers.
(Sized_relobj_file::find_kept_section_object): New method.
(Sized_relobj_file::get_symbol_name): New method.
(Sized_relobj_file::Kept_comdat_section): Replace object and shndx
fields with sh_size, kept_section, symndx, and is_comdat fields.
(Sized_relobj_file::set_kept_comdat_section): Replace kept_object
and kept_shndx parameters with is_comdat, symndx, sh_size, and
kept_section.
(Sized_relobj_file::get_kept_comdat_section): Likewise.
* target-reloc.h (enum Comdat_behavior): Change CB_WARNING to CB_ERROR.
Adjust all references.
(issue_undefined_symbol_error): New function template.
(relocate_section): Pass section name to map_to_kept_section.
Move discarded section code to new function above.
* aarch64.cc (Target_aarch64::scan_reloc_section_for_stubs): Move
declaration for gsym out one level. Call issue_discarded_error.
* arm.cc (Target_arm::scan_reloc_section_for_stubs): Likewise.
* powerpc.cc (Relocate_comdat_behavior): Change CB_WARNING to CB_ERROR.
2018-04-07 07:06:16 +08:00
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2018-04-06 Cary Coutant <ccoutant@gmail.com>
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* object.cc (Sized_relobj_file::include_section_group): Store
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reference to Kept_section info for discarded comdat sections
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regardless of size. Move size checking to map_to_kept_section.
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(Sized_relobj_file::include_linkonce_section): Likewise.
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(Sized_relobj_file::map_to_kept_section): Add section name parameter.
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Insert size checking logic from above functions.
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(Sized_relobj_file::find_kept_section_object): New method.
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(Sized_relobj_file::get_symbol_name): New method.
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* object.h (Sized_relobj_file::map_to_kept_section): Add section_name
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parameter. Adjust all callers.
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(Sized_relobj_file::find_kept_section_object): New method.
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(Sized_relobj_file::get_symbol_name): New method.
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(Sized_relobj_file::Kept_comdat_section): Replace object and shndx
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fields with sh_size, kept_section, symndx, and is_comdat fields.
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(Sized_relobj_file::set_kept_comdat_section): Replace kept_object
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and kept_shndx parameters with is_comdat, symndx, sh_size, and
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kept_section.
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(Sized_relobj_file::get_kept_comdat_section): Likewise.
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* target-reloc.h (enum Comdat_behavior): Change CB_WARNING to CB_ERROR.
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Adjust all references.
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(issue_undefined_symbol_error): New function template.
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(relocate_section): Pass section name to map_to_kept_section.
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Move discarded section code to new function above.
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* aarch64.cc (Target_aarch64::scan_reloc_section_for_stubs): Move
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declaration for gsym out one level. Call issue_discarded_error.
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* arm.cc (Target_arm::scan_reloc_section_for_stubs): Likewise.
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* powerpc.cc (Relocate_comdat_behavior): Change CB_WARNING to CB_ERROR.
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2018-04-06 05:51:37 +08:00
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2018-04-05 Cary Coutant <ccoutant@gmail.com>
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* target-reloc.h (relocate_section): Add local symbol index or global
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symbol name to warning about relocation that refers to discarded
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section.
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2018-04-06 00:41:42 +08:00
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2018-04-05 James Cowgill <james.cowgill@mips.com>
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Revert previous patch and apply revised patch.
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PR gold/22770
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* mips.cc (Mips_got_info::record_got_page_entry): Don't insert
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Got_page_entry for object's GOT.
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(Mips_got_info::add_got_page_entries): Add all pages from from's GOT.
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Rename to add_got_page_count.
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(Got_page_entry): Remove num_pages.
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2018-04-05 23:47:53 +08:00
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2018-04-05 James Cowgill <james.cowgill@mips.com>
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PR gold/22770
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* mips.cc (Mips_got_info::record_got_page_entry): Fetch existing
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page entries for the object's GOT.
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2018-04-04 15:40:36 +08:00
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2018-04-05 Alan Modra <amodra@gmail.com>
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* powerpc.cc (Target_powerpc::make_brlt_section): Make .branch_lt relro.
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2018-04-04 16:00:18 +08:00
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2018-04-04 Nick Clifton <nickc@redhat.com>
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* po/es.po: Updated Spanish translation.
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Fix problem where mixed section types can cause internal error during a -r link.
During a -r (or --emit-relocs) link, if two sections had the same name but
different section types, gold would put relocations for both sections into
the same relocation section even though the data sections remained separate.
For .eh_frame sections, when one section is PROGBITS and another is
X86_64_UNWIND, we really should be using the UNWIND section type and
combining the sections anyway. For other sections, we should be
creating one relocation section for each output data section.
gold/
PR gold/23016
* incremental.cc (can_incremental_update): Check for unwind section
type.
* layout.h (Layout::layout): Add sh_type parameter.
* layout.cc (Layout::layout): Likewise.
(Layout::layout_reloc): Create new output reloc section if data
section does not already have one.
(Layout::layout_eh_frame): Check for unwind section type.
(Layout::make_eh_frame_section): Use unwind section type for .eh_frame
and .eh_frame_hdr.
* object.h (Sized_relobj_file::Shdr_write): New typedef.
(Sized_relobj_file::layout_section): Add sh_type parameter.
(Sized_relobj_file::Deferred_layout::Deferred_layout): Add sh_type
parameter.
* object.cc (Sized_relobj_file::check_eh_frame_flags): Check for
unwind section type.
(Sized_relobj_file::layout_section): Add sh_type parameter; pass it
to Layout::layout.
(Sized_relobj_file::do_layout): Make local copy of sh_type.
Force .eh_frame sections to unwind section type.
Pass sh_type to layout_section.
(Sized_relobj_file<size, big_endian>::do_layout_deferred_sections):
Pass sh_type to layout_section.
* output.cc (Output_section::Output_section): Initialize reloc_section_.
* output.h (Output_section::reloc_section): New method.
(Output_section::set_reloc_section): New method.
(Output_section::reloc_section_): New data member.
* target.h (Target::unwind_section_type): New method.
(Target::Target_info::unwind_section_type): New data member.
* aarch64.cc (aarch64_info): Add unwind_section_type.
* arm.cc (arm_info, arm_nacl_info): Likewise.
* i386.cc (i386_info, i386_nacl_info, iamcu_info): Likewise.
* mips.cc (mips_info, mips_nacl_info): Likewise.
* powerpc.cc (powerpc_info): Likewise.
* s390.cc (s390_info): Likewise.
* sparc.cc (sparc_info): Likewise.
* tilegx.cc (tilegx_info): Likewise.
* x86_64.cc (x86_64_info, x86_64_nacl_info): Likewise.
* testsuite/Makefile.am (pr23016_1, pr23016_2): New test cases.
* testsuite/Makefile.in: Regenerate.
* testsuite/testfile.cc: Add unwind_section_type.
* testsuite/pr23016_1.sh: New test script.
* testsuite/pr23016_1a.s: New source file.
* testsuite/pr23016_1b.s: New source file.
* testsuite/pr23016_2.sh: New test script.
* testsuite/pr23016_2a.s: New source file.
* testsuite/pr23016_2b.s: New source file.
2018-04-03 07:12:10 +08:00
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2018-04-02 Cary Coutant <ccoutant@gmail.com>
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PR gold/23016
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* incremental.cc (can_incremental_update): Check for unwind section
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type.
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* layout.h (Layout::layout): Add sh_type parameter.
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* layout.cc (Layout::layout): Likewise.
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(Layout::layout_reloc): Create new output reloc section if data
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section does not already have one.
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(Layout::layout_eh_frame): Check for unwind section type.
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(Layout::make_eh_frame_section): Use unwind section type for .eh_frame
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and .eh_frame_hdr.
|
|
|
|
|
|
* object.h (Sized_relobj_file::Shdr_write): New typedef.
|
|
|
|
|
|
(Sized_relobj_file::layout_section): Add sh_type parameter.
|
|
|
|
|
|
(Sized_relobj_file::Deferred_layout::Deferred_layout): Add sh_type
|
|
|
|
|
|
parameter.
|
|
|
|
|
|
* object.cc (Sized_relobj_file::check_eh_frame_flags): Check for
|
|
|
|
|
|
unwind section type.
|
|
|
|
|
|
(Sized_relobj_file::layout_section): Add sh_type parameter; pass it
|
|
|
|
|
|
to Layout::layout.
|
|
|
|
|
|
(Sized_relobj_file::do_layout): Make local copy of sh_type.
|
|
|
|
|
|
Force .eh_frame sections to unwind section type.
|
|
|
|
|
|
Pass sh_type to layout_section.
|
|
|
|
|
|
(Sized_relobj_file<size, big_endian>::do_layout_deferred_sections):
|
|
|
|
|
|
Pass sh_type to layout_section.
|
|
|
|
|
|
* output.cc (Output_section::Output_section): Initialize reloc_section_.
|
|
|
|
|
|
* output.h (Output_section::reloc_section): New method.
|
|
|
|
|
|
(Output_section::set_reloc_section): New method.
|
|
|
|
|
|
(Output_section::reloc_section_): New data member.
|
|
|
|
|
|
* target.h (Target::unwind_section_type): New method.
|
|
|
|
|
|
(Target::Target_info::unwind_section_type): New data member.
|
|
|
|
|
|
|
|
|
|
|
|
* aarch64.cc (aarch64_info): Add unwind_section_type.
|
|
|
|
|
|
* arm.cc (arm_info, arm_nacl_info): Likewise.
|
|
|
|
|
|
* i386.cc (i386_info, i386_nacl_info, iamcu_info): Likewise.
|
|
|
|
|
|
* mips.cc (mips_info, mips_nacl_info): Likewise.
|
|
|
|
|
|
* powerpc.cc (powerpc_info): Likewise.
|
|
|
|
|
|
* s390.cc (s390_info): Likewise.
|
|
|
|
|
|
* sparc.cc (sparc_info): Likewise.
|
|
|
|
|
|
* tilegx.cc (tilegx_info): Likewise.
|
|
|
|
|
|
* x86_64.cc (x86_64_info, x86_64_nacl_info): Likewise.
|
|
|
|
|
|
|
|
|
|
|
|
* testsuite/Makefile.am (pr23016_1, pr23016_2): New test cases.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate.
|
|
|
|
|
|
* testsuite/testfile.cc: Add unwind_section_type.
|
|
|
|
|
|
* testsuite/pr23016_1.sh: New test script.
|
|
|
|
|
|
* testsuite/pr23016_1a.s: New source file.
|
|
|
|
|
|
* testsuite/pr23016_1b.s: New source file.
|
|
|
|
|
|
* testsuite/pr23016_2.sh: New test script.
|
|
|
|
|
|
* testsuite/pr23016_2a.s: New source file.
|
|
|
|
|
|
* testsuite/pr23016_2b.s: New source file.
|
|
|
|
|
|
|
2018-03-28 08:49:49 +08:00
|
|
|
|
2018-03-28 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
PR gold/21423
|
|
|
|
|
|
PR gold/22500
|
|
|
|
|
|
* configure.ac: Call AC_USE_SYSTEM_EXTENSIONS.
|
|
|
|
|
|
Replace check for --enable-plugins with AC_PLUGINS.
|
|
|
|
|
|
* options.cc (parse_plugin, parse_plugin_opt): Remove #ifdef.
|
|
|
|
|
|
(General_options::finalize): Check if plugins enabled.
|
|
|
|
|
|
* options.h (--plugin, --plugin-opt): Define even if plugins not
|
|
|
|
|
|
enabled.
|
|
|
|
|
|
* Makefile.in: Regenerate.
|
|
|
|
|
|
* aclocal.m4: Regenerate.
|
|
|
|
|
|
* configure: Regenerate.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate.
|
|
|
|
|
|
|
2018-03-28 09:24:48 +08:00
|
|
|
|
2018-03-28 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
PR gold/22969
|
|
|
|
|
|
* aarch64-reloc.def: Add TLSLE_LDST* relocations.
|
|
|
|
|
|
* aarch64.cc (Target_aarch64::optimize_tls_reloc): Likewise.
|
|
|
|
|
|
(Target_aarch64::Scan::local): Likewise.
|
|
|
|
|
|
(Target_aarch64::Scan::global): Likewise.
|
|
|
|
|
|
(Target_aarch64::Relocate::relocate): Likewise.
|
|
|
|
|
|
(Target_aarch64::Relocate::relocate_tls): Likewise.
|
|
|
|
|
|
|
2018-03-28 07:27:03 +08:00
|
|
|
|
2018-03-27 Roland McGrath <mcgrathr@google.com>
|
|
|
|
|
|
|
|
|
|
|
|
* testsuite/split_x86_64.sh: Fix bad regexp.
|
|
|
|
|
|
|
2018-03-24 00:03:34 +08:00
|
|
|
|
2018-03-26 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
PR gold/22868
|
|
|
|
|
|
* plugin.cc (Sized_pluginobj::do_add_symbols): Use a real section
|
|
|
|
|
|
index instead of SHN_ABS for defined symbols.
|
|
|
|
|
|
* testsuite/Makefile.am (plugin_pr22868): New test case.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate
|
|
|
|
|
|
* testsuite/plugin_pr22868.sh: New test script.
|
|
|
|
|
|
* testsuite/plugin_pr22868_a.c: New source file.
|
|
|
|
|
|
* testsuite/plugin_pr22868_b.c: New source file.
|
|
|
|
|
|
|
2018-03-24 14:33:47 +08:00
|
|
|
|
2018-03-23 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* plugin.cc (link_or_copy_file): Remove newlines from warning messages.
|
|
|
|
|
|
Add pedantic check for return value from ::write.
|
|
|
|
|
|
|
2018-03-24 14:29:43 +08:00
|
|
|
|
2018-03-23 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* debug.h (DEBUG_PLUGIN): New constant.
|
|
|
|
|
|
(DEBUG_ALL): Add DEBUG_PLUGIN.
|
|
|
|
|
|
(debug_string_to_enum): Likewise.
|
|
|
|
|
|
* plugin.cc (make_sized_plugin_object): Add filename parameter.
|
|
|
|
|
|
(Plugin_recorder): New class.
|
|
|
|
|
|
(Plugin_manager::~Plugin_manager): Delete recorder_.
|
|
|
|
|
|
(Plugin_manager::load_plugins): Create and initialize recorder_.
|
|
|
|
|
|
(Plugin_manager::claim_file): Record claimed and unclaimed files.
|
|
|
|
|
|
(Plugin_manager::make_plugin_object): Use object name as name for
|
|
|
|
|
|
plugin object, if available.
|
|
|
|
|
|
(Plugin_manager::add_input_file): Record replacement files.
|
|
|
|
|
|
(Sized_pluginobj::do_add_symbols): Record plugin symbols.
|
|
|
|
|
|
(Plugin_finish::run): Call Plugin_recorder::finish().
|
|
|
|
|
|
(make_sized_plugin_object): Add filename parameter and pass to
|
|
|
|
|
|
Sized_pluginobj constructor.
|
|
|
|
|
|
* plugin.h (Plugin::filename): New method.
|
|
|
|
|
|
(Plugin::recorder): New method.
|
|
|
|
|
|
(Plugin::recorder_): New data member.
|
|
|
|
|
|
|
2018-03-08 04:15:49 +08:00
|
|
|
|
2018-03-07 Sriraman Tallam <tmsriram@google.com>
|
|
|
|
|
|
|
|
|
|
|
|
* layout.cc (Layout::default_section_order): Check for text section
|
|
|
|
|
|
prefixes.
|
|
|
|
|
|
(Layout::text_section_name_mapping): New static member.
|
|
|
|
|
|
(Layout::text_section_name_mapping_count): New static member.
|
|
|
|
|
|
(Layout::match_section_name): New static function.
|
|
|
|
|
|
(Layout::output_section_name): Check for text section prefixes.
|
|
|
|
|
|
* layout.h (Output_section_order::ORDER_TEXT_HOT): New enum value.
|
|
|
|
|
|
(Output_section_order::ORDER_TEXT_STARTUP): New enum value.
|
|
|
|
|
|
(Output_section_order::ORDER_TEXT_EXIT): New enum value.
|
|
|
|
|
|
(Output_section_order::ORDER_TEXT_UNLIKELY): New enum value.
|
|
|
|
|
|
(Layout::text_section_name_mapping): New static member.
|
|
|
|
|
|
(Layout::text_section_name_mapping_count): New static member.
|
|
|
|
|
|
(Layout::match_section_name): New static function.
|
|
|
|
|
|
* options.h (keep_text_section_prefix): New -z option.
|
|
|
|
|
|
* testsuite/Makefile.am (keep_text_section_prefix): New test.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate.
|
|
|
|
|
|
* testsuite/keep_text_section_prefix.cc: New test source.
|
|
|
|
|
|
* testsuite/keep_text_section_prefix.sh: New test script.
|
|
|
|
|
|
|
2018-02-23 05:56:46 +08:00
|
|
|
|
2018-02-22 Sriraman Tallam <tmsriram@google.com>
|
|
|
|
|
|
|
|
|
|
|
|
* plugin.cc (get_wrap_symbols): New plugin interface.
|
|
|
|
|
|
(load): Add get_wrap_symbols to transfer vector.
|
|
|
|
|
|
* plugin-api.h (ld_plugin_get_wrap_symbols): New plugin interface.
|
|
|
|
|
|
* testsuite/plugin_test.c (onload): Call and check get_wrap_symbols
|
|
|
|
|
|
interface.
|
|
|
|
|
|
* testsuite/plugin_test_wrap_symbols.sh: New test script.
|
|
|
|
|
|
* testsuite/plugin_test_wrap_symbols_1.cc: New file.
|
|
|
|
|
|
* testsuite/plugin_test_wrap_symbols_2.cc: New file.
|
|
|
|
|
|
* testsuite/Makefile.am (plugin_test_wrap_symbols): New test.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate.
|
|
|
|
|
|
|
2018-02-16 09:35:16 +08:00
|
|
|
|
2018-02-07 Sriraman Tallam <tmsriram@google.com>
|
|
|
|
|
|
|
|
|
|
|
|
* expression.cc (Symbol_expression::set_expr_sym_in_real_elf):
|
|
|
|
|
|
New method.
|
|
|
|
|
|
(Unary_expression::set_expr_sym_in_real_elf): New method.
|
|
|
|
|
|
(Binary_expression::set_expr_sym_in_real_elf): New method.
|
|
|
|
|
|
(Trinary_expression::set_expr_sym_in_real_elf): New method.
|
|
|
|
|
|
* plugin.cc (get_symbol_resolution_info): Fix symbol resolution if
|
|
|
|
|
|
defined or used in defsyms.
|
|
|
|
|
|
* plugin.h (Plugin_manager::is_defsym_def): New method.
|
|
|
|
|
|
(Plugin_manager::Plugin_manager): Initialize defsym_defines_set_.
|
|
|
|
|
|
(Plugin_manager::defsym_defines_set_): New member.
|
|
|
|
|
|
(Plugin_manager::Defsym_defines_set): New typedef.
|
|
|
|
|
|
* script.cc (Script_options::set_defsym_uses_in_real_elf): New method.
|
|
|
|
|
|
(Script_options::find_defsym_defs): New method.
|
|
|
|
|
|
* script.h (Expression::set_expr_sym_in_real_elf): New method.
|
|
|
|
|
|
(Symbol_assignment::is_defsym): New method.
|
|
|
|
|
|
(Symbol_assignment::value): New method.
|
|
|
|
|
|
(Script_options::find_defsym_defs): New method.
|
|
|
|
|
|
(Script_options::set_defsym_uses_in_real_elf): New method.
|
|
|
|
|
|
* testsuite/Makefile.am (plugin_test_defsym): New test.
|
|
|
|
|
|
* testsuite/Makefile.in: Regenerate.
|
|
|
|
|
|
* testsuite/plugin_test.c: Check for new symbol resolution.
|
|
|
|
|
|
* testsuite/plugin_test_defsym.sh: New script.
|
|
|
|
|
|
* testsuite/plugin_test_defsym.c: New test source.
|
|
|
|
|
|
|
2018-02-05 10:47:52 +08:00
|
|
|
|
2018-02-07 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
Revert 2018-01-17 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
* options.h: Remove --speculate-indirect-jumps support.
|
|
|
|
|
|
* powerpc.cc: Likewise.
|
|
|
|
|
|
|
2018-02-03 09:44:27 +08:00
|
|
|
|
2018-02-02 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* PR gold/22776
|
|
|
|
|
|
* dwarf_reader.cc (Sized_dwarf_line_info::read_header_prolog): Add
|
|
|
|
|
|
support for DWARF-4 line number tables.
|
|
|
|
|
|
* dwarf_reader.h (Sized_dwarf_line_info::max_ops_per_insn): New field.
|
|
|
|
|
|
|
2018-01-18 19:36:40 +08:00
|
|
|
|
2018-01-18 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* powerpc.cc (param_plt_align): New function supplying default
|
|
|
|
|
|
--plt-align values. Use it..
|
|
|
|
|
|
(Stub_table::plt_call_align): ..here, and..
|
|
|
|
|
|
(Output_data_glink::global_entry_align): ..here.
|
|
|
|
|
|
(Stub_table::stub_align): Correct 32-bit minimum alignment.
|
|
|
|
|
|
|
2018-01-17 11:49:08 +08:00
|
|
|
|
2018-01-17 Alan Modra <amodra@gmail.com>
|
|
|
|
|
|
|
|
|
|
|
|
* options.h (speculate_indirect_jumps): New option.
|
|
|
|
|
|
* powerpc.cc (beqctrm, beqctrlm, crseteq): New insn constants.
|
|
|
|
|
|
(output_bctr): New function.
|
|
|
|
|
|
(Stub_table::plt_call_size): Add space for speculation barrier.
|
|
|
|
|
|
(Stub_table::branch_stub_size): Likewise.
|
|
|
|
|
|
(Output_data_glink::pltresolve_size): Likewise.
|
|
|
|
|
|
(Stub_table::do_write): Output speculation barriers.
|
|
|
|
|
|
|
PowerPC PLT stub tidy
This is in preparation for the next patch adding Spectre variant 2
mitigation for PowerPC and PowerPC64. Besides tidying code involved
in stub output (to reduce the number of places where bctr is output),
the patch adds some user visible features:
1) PowerPC64 ELFv2 global entry stubs now are aligned under the
control of --plt-align, with a default alignment of 32 bytes.
2) PowerPC64 __glink_PLTresolve is no longer padded out with nops.
3) PowerPC32 PLT stubs are aligned under the control of --plt-align,
with the default alignment being 16 bytes as before.
4) The PowerPC32 branch/nop table emitted before __glink_PLTresolve
is now smaller in many cases. It was sized incorrectly when the
__tls_get_addr_opt stub was used, and unnecessarily included space
for local ifuncs.
bfd/
* 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.
gold/
* options.h (plt_align): Support for PowerPC32 too.
* powerpc.cc (Stub_table::stub_align): Heed --plt-align for 32-bit.
(Stub_table::plt_call_size, branch_stub_size): Tidy.
(Stub_table::plt_call_align): Implement using stub_align.
(Output_data_glink::global_entry_align): New function.
(Output_data_glink::global_entry_off): New function.
(Output_data_glink::global_entry_address): Use global_entry_off.
(Output_data_glink::pltresolve_size): New function, replacing
pltresolve_size_ constant. Update all uses.
(Output_data_glink::add_global_entry): Align offset.
(Output_data_glink::set_final_data_size): Use global_entry_align.
(Stub_table::do_write): Don't pad __glink_PLTrelsolve with nops.
Tidy stub output. Use global_entry_off.
ld/
* emultempl/ppc32elf.em (params): Init new field.
(enum ppc32_opt): New enum to define OPTION_* values. Add
OPTION_PLT_ALIGN and OPTION_NO_PLT_ALIGN.
(PARSE_AND_LIST_LONGOPTS): Handle new options.
(PARSE_AND_LIST_ARGS_CASES): Likewise.
(PARSE_AND_LIST_OPTIONS): Likewise. Break up help output.
* emultempl/ppc64elf.em (ppc_add_stub_section): Init alignment
correctly for negative --plt-stub-align.
* testsuite/ld-powerpc/elfv2exe.d,
* testsuite/ld-powerpc/elfv2so.d,
* testsuite/ld-powerpc/relbrlt.d,
* testsuite/ld-powerpc/relbrlt.s,
* testsuite/ld-powerpc/tlsexe.d,
* testsuite/ld-powerpc/tlsexe.r,
* testsuite/ld-powerpc/tlsexe32.d,
* testsuite/ld-powerpc/tlsexe32.g,
* testsuite/ld-powerpc/tlsexe32.r,
* testsuite/ld-powerpc/tlsexetoc.d,
* testsuite/ld-powerpc/tlsexetoc.r,
* testsuite/ld-powerpc/tlsopt5_32.d,
* testsuite/ld-powerpc/tlsso.d,
* testsuite/ld-powerpc/tlstocso.d: Update for changed stub order.
2018-01-13 16:23:41 +08:00
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2018-01-17 Alan Modra <amodra@gmail.com>
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* options.h (plt_align): Support for PowerPC32 too.
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* powerpc.cc (Stub_table::stub_align): Heed --plt-align for 32-bit.
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(Stub_table::plt_call_size, branch_stub_size): Tidy.
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(Stub_table::plt_call_align): Implement using stub_align.
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(Output_data_glink::global_entry_align): New function.
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(Output_data_glink::global_entry_off): New function.
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(Output_data_glink::global_entry_address): Use global_entry_off.
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(Output_data_glink::pltresolve_size): New function, replacing
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pltresolve_size_ constant. Update all uses.
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(Output_data_glink::add_global_entry): Align offset.
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(Output_data_glink::set_final_data_size): Use global_entry_align.
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(Stub_table::do_write): Don't pad __glink_PLTrelsolve with nops.
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Tidy stub output. Use global_entry_off.
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2018-01-16 02:05:54 +08:00
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2018-01-15 Cary Coutant <ccoutant@gmail.com>
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PR gold/22694
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* options.h (-fuse-ld): Add correct helparg.
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2018-01-15 20:09:11 +08:00
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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 21:56:48 +08:00
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2018-01-13 Nick Clifton <nickc@redhat.com>
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* po/gold.pot: Regenerated.
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2018-01-13 21:26:38 +08:00
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2018-01-13 Nick Clifton <nickc@redhat.com>
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2.30 branch created.
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2018-01-13 10:38:11 +08:00
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2018-01-12 Cary Coutant <ccoutant@gmail.com>
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* NEWS: Add new features in 1.15.
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* version.cc (version_string): Bump to 1.15.
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2018-01-12 Sterling Augustine <saugustine@google.com>
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2018-01-13 03:05:58 +08:00
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* cref.cc (Cref_inputs::Cref_table_compare::operator): Add
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conditionals and calls to is_forwarder.
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2018-01-03 13:17:27 +08:00
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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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2018-01-03 13:15:17 +08:00
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For older changes see ChangeLog-2017
|
2016-01-01 18:44:31 +08:00
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2018-01-03 13:15:17 +08:00
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Copyright (C) 2018 Free Software Foundation, Inc.
|
2016-01-01 18:44:31 +08:00
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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:
|
