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It implemented scanning the binary and reporting occurrences to users
when '--fix-cortex-a53' is turned on. With this, gold users will be
able to see if or not there are such erratum occurrences in the output
binary. Also included in the CL is reading/recording mapping symbols,
which is needed during scan.
gold/ChangeLog:
* aarch64.cc (AArch64_insn_utilities): New utility class.
(AArch64_relobj::Mapping_symbol_position): New struct.
(AArch64_relobj::Mapping_symbol_info): New typedef.
(AArch64_relobj::do_count_local_symbols): New function overriding
parent's implementation.
(AArch64_relobj::mapping_symbol_info_): New member
(AArch64_relobj::scan_erratum_843419): New method.
(Target_aarch64::scan_erratum_843419_span): New method.
(Target_aarch64::is_erratum_843419_sequence): New method.
* options.h (fix_cortex_a53): New option.
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This patch fixes Symbol::final_value_is_known so that a defined TLS symbol
in a PIE link is treated as having a known final value, thus allowing
GD->LE TLS optimization, eliminating an unnecessary GOT entry and dynamic
relocation.
gold/
* symtab.cc (Symbol::final_value_is_known): Check for TLS symbol
in a PIE link.
* testsuite/Makefile.am (tls_pie_test.sh): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/tls_pie_test.sh: New.
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gold/
* debug.h (DEBUG_LOCATION): New.
(DEBUG_ALL): Include DEBUG_LOCATION.
(debug_string_to_enum): Add DEBUG_LOCATION.
* dwarf_reader.cc (Sized_dwarf_line_info::read_lines): Fix debug
output to print correct context.
(Sized_dwarf_line_info::do_addr2line): Add debug output. Return
up to 4 more locations at the beginning of the function.
* symtab.cc (Symbol_table::detect_odr_violations): Get canonical
result before sorting list of line numbers.
* testsuite/debug_msg.sh: Allow range of line numbers for
canonical results on optimized code.
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2015-04-06 Ilya Tocar <ilya.tocar@intel.com>
PR gold/17641
* x86_64.cc (Target_x86_64::can_convert_mov_to_lea): New.
(Target_x86_64::Scan::local): Don't create GOT entry, when we
can convert mov to lea.
(Target_x86_64::Scan::global): Ditto.
(Target_x86_64::Relocate::relocate): Convert mov foo@GOTPCREL(%rip),
%reg to lea foo(%rip), %reg if possible.
* testsuite/Makefile.am (x86_64_mov_to_lea): New test.
* testsuite/x86_64_mov_to_lea1.s: New.
* testsuite/x86_64_mov_to_lea2.s: Ditto.
* testsuite/x86_64_mov_to_lea3.s: Ditto.
* testsuite/x86_64_mov_to_lea4.s: Ditto.
* testsuite/x86_64_mov_to_lea.sh: Ditto.
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bfd/
* configure: Regenerated.
binutils/
* configure: Regenerated.
gas/
* configure: Regenerated.
gdb/
* Makefile.in (top_srcdir): New.
* configure: Regenerated.
gold/
* configure: Regenerated.
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2015-04-01 Ilya Tocar <ilya.tocar@intel.com>
PR gold/17640
* i386.cc (Target_i386::can_convert_mov_to_lea): New.
(Target_i386::Scan::local): Don't create GOT entry, when we
can convert GOT to GOTOFF.
(Target_i386::Scan::global): Ditto.
(Target_i386::Relocate::relocate): Convert mov foo@GOT(%reg), %reg to
lea foo@GOTOFF(%reg), %reg if possible.
* testsuite/Makefile.am (i386_mov_to_lea): New test.
* testsuite/i386_mov_to_lea1.s: New.
* testsuite/i386_mov_to_lea2.s: Ditto.
* testsuite/i386_mov_to_lea3.s: Ditto.
* testsuite/i386_mov_to_lea4.s: Ditto.
* testsuite/i386_mov_to_lea5.s: Ditto.
* testsuite/i386_mov_to_lea.sh: Ditto.
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Regenerate configure for zlib.m4 change, which adds --with-system-zlib and
removes --with-zlib in gold. zlib is enabled unconditionally with builtin
zlib imported from GCC.
* Makefile.am (ZLIB): New.
(ZLIBINC): Likewise.
(AM_CFLAGS): Add $(ZLIBINC).
(AM_CXXFLAGS): Likewise.
(ldadd_varldadd_var): Add $(ZLIB).
(incremental_dump_LDADD): Likewise.
(dwp_LDADD): Likewise.
* compressed_output.cc: Don't check HAVE_ZLIB_H to include
<zlib.h>.
(zlib_compress): Don't check HAVE_ZLIB_H.
(zlib_decompress): Likewise.
* options.h (compress_debug_sections): Likewise.
* configure.ac (AM_CONDITIONAL): Removed.
* testsuite/Makefile.am (ZLIB): New.
(LDADD): Add $(ZLIB).
Don't check HAVE_ZLIB.
* Makefile.in: Regenerated.
* config.in: Likewise.
* configure: Likewise.
* testsuite/Makefile.in: Likewise.
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Also Change _TLS_MODULE_BASE_. Always let it point to the start
of TLS segment.
2015-03-28 Jing Yu <jingyu@google.com>
* aarch64-reloc.def: New TLSLD_ADD_DTPREL_HI12,
TLSLD_ADD_DTPREL_LO12_NC.
* aarch64.cc (Target_aarch64::define_tls_base_symbol): Always
let _TLS_MODULE_BASE_ point to the start of tls segment.
(Target_aarch64::optimize_tls_reloc): Add cases for
R_AARCH64_TLSLD_ADD_DTPREL_HI12 and
R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC.
(Target_aarch64::Scan::local): Likewise.
(Target_aarch64::Scan::global): Likewise.
(Target_aarch64::Relocate::relocate): Likewise.
(Target_aarch64::Relocate::relocate_tls): Likewise. And remove
subtracting tls segment size from symbol value for
TLSLD_*_DTPREL relocations.
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Avoid looking up Input_merge_map multiple times when we know were are
processing items from the same input section.
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If ignoring unresolved symbols, ignore reloc overflows too. If not
ignoring unresolved symbols we will report an error about the symbol
being undefined, making any report about reloc overflow superfluous.
PR18147
* powerpc.cc (Target_powerpc::Relocate::relocate): Don't report
relocation errors for branches to strong undefined symbols.
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Now that Input_merge_map has an Output_section_data, we can use it in
implementing find_merge_section and replace the only use of is_merge_section_for
with it.
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There are two cases to support, one with an SIB-form (6-byte) LEA,
the other with a 5-byte LEA and a NOP after the call __tls_get_addr.
Gold did not yet support the second case. This patch adds that
support.
gold/
PR gold/18106
* i386.cc (Target_i386::Relocate::tls_gd_to_ie): Fix support for
non-SIB form of lea, with nop after the call.
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When calculating the padding necessary to align the end of the relro
segment to a page boundary, gold erroneously ignores the .tdata section
when checking to see if there are any relro sections (so if .tdata
is the only relro section, we fail to align the segment properly),
and erroneously pads the cumulative size of the segment based on
the alignment of .tbss. If there are no relro sections following .tbss,
it then fails to note the padding needed at the end of .tdata.
This patch fixes both problems. is_first_section_relro() will return
true when it sees a .tdata section, and we do not align the cumulative
size until after checking for the .tbss section.
gold/
PR gold/14217
* output.cc (Output_segment::is_first_section_relro): Don't ignore
.tdata section.
(Output_segment::set_section_addresses): Don't align size of relro
segment for .tbss.
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Tail optimization of string pools (enabled when linker is run with -O2
or greater) should not be done when the section alignment is greater
than the size of the characters in the strings; otherwise, unaligned
strings may result.
gold/
PR gold/18010
* stringpool.cc (Stringpool_template): Don't optimize if section
alignment is greater than sizeof(char).
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This patch fixes INCLUDE directives in script files, so that when
an INCLUDE appears inside a sections block, section commands block,
or memory def block, the contents are parsed in the appropriate
context.
gold/
PR gold/18048
* script-c.h (script_include_directive): Add first_token parameter.
* script.cc (script_include_directive): Add first_token parameter, and
pass it to read_script_file.
* yyscript.y (PARSING_SECTIONS_BLOCK, PARSING_SECTION_CMDS)
(PARSING_MEMORY_DEF): New tokens.
(top): Add new productions for INCLUDE files.
(file_cmd): Replace file_or_sections_cmd with copy of its productions.
Pass PARSING_LINKER_SCRIPT to script_include_directive.
(section_block_cmd): Likewise; pass PARSING_SECTIONS_BLOCK.
(section_cmd): Pass PARSING_SECTION_CMDS.
(file_or_sections_cmd): Remove.
(memory_def): Pass PARSING_MEMORY_DEF.
* testsuite/Makefile.am (memory_test_2): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/memory_test_inc.t: New script file.
* testsuite/memory_test_inc_1.t.src: New script file.
* testsuite/memory_test_inc_2.t.src: New script file.
* testsuite/memory_test_inc_3.t.src: New script file.
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This patch adds support for reading compressed debug info in
shared objects. It actually simplifies things, by moving the
support for compressed sections all the way up to the top-level
Object class, eliminating the need for several virtual methods.
gold/
* dwp.cc (Sized_relobj_dwo::do_section_contents): Delete.
(Sized_relobj_dwo::setup): Build compressed section map.
(Sized_relobj_dwo::do_decompressed_section_contents): Delete.
* dynobj.cc (Sized_dynobj::base_read_symbols): Build compressed
section map.
* object.cc (Sized_relobj_file::Sized_relobj_file): Remove
compressed_sections_ field.
(build_compressed_section_map): Take Object instead of
Sized_relobj_file parameter; add decompress_if_needed parameter.
(Sized_relobj_file::do_find_special_sections): Store compressed
section map in parent Object.
(Sized_relobj_file::do_decompressed_section_contents): Move
implementation to Object::decompressed_section_contents.
(Sized_relobj_file::do_discard_decompressed_sections): Move
implementation to Object::discard_decompressed_sections.
* object.h (build_compressed_section_map): Declare.
(Object::Object): Add compressed_sections_ field.
(Object::section_is_compressed): Move implementation here.
(Object::decompressed_section_contents): De-virtualize.
(Object::discard_decompressed_sections): De-virtualize.
(Object::do_section_is_compressed): Delete.
(Object::do_decompressed_section_contents): Delete.
(Object::set_compressed_sections): New method.
(Object::compressed_sections): New method.
(Object::compressed_sections_): New data member.
(Compressed_section_info, Compressed_section_map): Move to top of file.
(Sized_relobj_file::do_section_is_compressed): Delete.
(Sized_relobj_file::do_decompressed_section_contents): Delete.
(Sized_relobj_file::do_discard_decompressed_sections): Delete.
(Sized_relobj_file::compressed_sections_): Move to Object class.
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In a previous patch for PR 14675, to fix a problem with
the .eh_frame section when static linking, I added a step to
finalize the .eh_frame section at the end of the first link
pass. This patch caused PR 18152, where a plugin-claimed
object caused a non-claimed object's layout to be deferred
until replacement files were read. The call to
finalize_eh_frame_section() is happening before the layout of
the deferred objects, leading to the internal error in
do_relocate_sections.
This patch moves the finalization of the .eh_frame section to
after deferred objects have been processed.
gold/
PR gold/14675
PR gold/18152
* gold.cc (queue_middle_tasks): Finalize .eh_frame after laying out
deferred objects.
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Newer version of GCC pass -z relro to the linker, but incremental linking
does not support relro. This patch adds a check to complain about the
conflict, and changes the testsuite to pass -z norelro to the incremental
tests.
2015-03-11 Cary Coutant <ccoutant@google.com>
gold/
* options.cc (General_options::finalize): Don't allow -z relro
with incremental linking.
* testsuite/Makefile.am (incremental_test): Add -z norelro.
(incremental_test_2): Likewise.
(incremental_test_3): Likewise.
(incremental_test_4): Likewise.
(incremental_test_5): Likewise.
(incremental_test_6): Likewise.
(incremental_copy_test): Likewise.
(incremental_common_test_1): Likewise.
(incremental_comdat_test_1): Likewise.
* testsuite/Makefile.in: Regenerate.
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Because the __EH_FRAME_BEGIN__ symbol is provided in an empty .eh_frame
section in crtbeginT.o, if crt1.o has a non-empty .eh_frame section,
we place all optimized .eh_frame sections into the output section ahead
of the __EH_FRAME_BEGIN__ symbol, which breaks EH for statically-linked
binaries.
This patch fixes the problem by delaying the attachment of the optimized
.eh_frame sections to the output section until we see the end marker
section (or to the end of pass 1 if we never see an end marker).
gold/
PR gold/14675
* ehframe.cc (Eh_frame::add_ehframe_input_section): Change return type;
return enum indicating whether .eh_frame section is empty, optimizable,
unrecognized, or an end marker. Adjust explicit instantiations.
* ehframe.h (Eh_frame::Eh_frame_section_disposition): New enum type.
(Eh_frame::add_ehframe_input_section): Change return type.
* gold.cc (queue_middle_tasks): Call Layout::finalize_eh_frame_section.
* layout.cc (Layout::layout_eh_frame): Don't add optimized sections
to the .eh_frame output section until we see the end marker.
(Layout::finalize_eh_frame_section): New.
* layout.h: (Layout::finalize_eh_frame_section): New.
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GCC 4.2 complains:
binutils/gold/object.cc:3261: error: using ‘typename’ outside of template
This patch removes typename. It works with both GCC 4.2 and 4.8.
* output.cc (Relobj::initialize_input_to_output_map<size>):
Remove typename on elfcpp::Elf_types<size>::Elf_Addr.
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gold/
* parameters.cc (Parameters::set_target_once): Call
Target::select_as_default_target just once from here...
(set_parameters_target): ...instead of from here.
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2015-03-02 Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
* ehframe.cc (Cie::set_output_offset): Pass in and use a
Output_section_data instead of a Merge_map.
(Eh_frame::Eh_frame): Don't initialize merge_map_.
(Eh_frame::read_cie): Use add_merge_mapping instead of
Merge_map::add_mapping.
(Eh_frame::read_fde): Ditto.
(Eh_frame::set_final_data_size): Use this instead of this->merge_map_.
(Eh_frame::do_output_offset): Use merge_output_offset istead of
merge_map_->get_output_offset.
(Eh_frame::do_is_merge_section_for): Delete.
* ehframe.h (Fde::add_mapping): Pass in and use a Output_section_data
instead of a Merge_map.
(Cie::set_output_offset): Pass in a Output_section_data instead of a
Merge_map.
(Eh_frame::do_is_merge_section_for): Delete.
(Eh_frame::merge_map_): Delete.
* merge.cc (Object_merge_map::get_or_make_input_merge_map): Pass in
and use a Output_section_data instead of a Merge_map.
(Object_merge_map::add_mapping): Ditto.
(Object_merge_map::get_output_offset): Remove the merge_map argument.
(Object_merge_map::is_merge_section_for): Pass in and use a
Output_section_data instead of a Merge_map.
(Merge_map): Delete.
(Output_merge_base::do_output_offset): Use merge_output_offset instead
of merge_map_.get_output_offset.
(Output_merge_base::do_is_merge_section_for): Delete.
(Output_merge_data::do_add_input_section): Use
object->add_merge_mapping instead of add_mapping.
(Output_merge_string<Char_type>::finalize_merged_data): Ditto.
* merge.h (Merge_map): Delete forward declaration.
(Object_merge_map::add_mapping): Pass in and use a Output_section_data
instead of a Merge_map.
(Object_merge_map::get_output_offset): Remove the merge_map argument.
(Object_merge_map::is_merge_section_for): Pass in and use a
Output_section_data instead of a Merge_map.
(Input_merge_map::Object_merge_map::merge_map): Replace with
output_data.
(Object_merge_map::get_or_make_input_merge_map): Pass in and use a
Output_section_data instead of a Merge_map.
(Merge_map): Delete.
(Output_merge_base::Output_merge_base): Don't initialize merge_map_.
(Output_merge_base::do_is_merge_section_for): Delete.
(Output_merge_base::add_mapping): Delete.
(Output_merge_base::merge_map_): Delete.
* object.cc (Relobj::initialize_input_to_output_map): New.
(Relobj::initialize_input_to_output_map): New.
(Relobj::merge_output_offset): New.
(Relobj::is_merge_section_for): New.
(Relobj::initialize_input_to_output_map): Instantiate for 32 and 64
bits.
* object.h (Relobj::merge_map): Delete.
(initialize_input_to_output_map): New.
(set_merge_map): Delete.
(add_merge_mapping): New.
(merge_output_offset): New.
(is_merge_section_for): New.
* output.cc (Output_section::Input_section::is_merge_section_for):
Use object->is_merge_section_for.
* output.h (Output_section_data::is_merge_section_for): Delete.
(Output_section_data::do_is_merge_section_for): Delete.
* reloc.cc (Merged_symbol_value<size>::initialize_input_to_output_map):
Use object->initialize_input_to_output_map.
(Merged_symbol_value<size>::value_from_output_section): Use
object->merge_output_offset.
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2015-02-04 Peter Collingbourne <pcc@google.com>
Cary Coutant <ccoutant@google.com>
gold/
* output.cc (Output_section::add_merge_input_section): Do not
attempt to merge sections with an entsize of 0.
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2015-02-02 Khem Raj <raj.khem@gmail.com>
gold/
* attributes.h (class Output_attributes_section_data ): Add
do_print_to_mapfile function.
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PR 18010
* powerpc.cc (Powerpc_relocate_functions::addr16_ds): Always
complain if value is not a multiple of four.
(Target_powerpc::Relocate::relocate): Correct handling of
R_POWERPC_GOT_TPREL16 and R_POWERPC_GOT_TPREL16_LO for ppc64.
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* configure.ac (default_size): Set to 32 for x32.
* configure: Regenerated.
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Found when applying relocs in .debug that reference removed functions.
PR 17954
* powerpc.cc (Global_symbol_visitor_opd::operator()): Set default
visibility.
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this->section_reloc_map_[src_id] is created if it doesn't exist, so there
is no point in doing a find.
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With std::upper_bound we don't have to check p->input_offset > input_offset.
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DWARFv5 defines and GCC5 may output two new DW_LANG constants for the
Fortran 2003 and Fortran 2008 standards. Recognize both in gold gdb-index
as unsupported.
For consistency also add the other new DWARF5/GCC5 language constants in
the elfcpp::DW_LANG enum to match include/dwarf2.h.
elfcpp/ChangeLog:
* dwarf.h (enum DW_LANG): Add DW_LANG_C_plus_plus_11,
DW_LANG_C11, DW_LANG_C_plus_plus_14, DW_LANG_Fortran03 and
DW_LANG_Fortran08 from ../include/dwarf2.h.
gold/ChangeLog:
* gdb-index.cc (Gdb_index_info_reader::visit_top_die): Recognize
DW_LANG_Fortran03 and DW_LANG_Fortran08.
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In PR 13577, the complaint was that -Bsymbolic was overriding the binding
behavior for symbols listed in the --dynamic-list by setting the DT_SYMBOLIC
tag in the dynamic table. In reading the Gnu ld manual, I decided that
--dynamic-list should be mutually exclusive of -Bsymbolic, and modified
gold so that --dynamic-list would treat symbols listed as preemptible,
and all other symbols as internally bound. I was wrong.
PR 16992 shows that with --dynamic-list (and not -Bsymbolic), a symbol
not listed in the dynamic list is being internally bound within the
shared library, but because it's still in the dynamic symbol table, we
expose it to a COPY relocation, and things go really bad from there.
(I can reproduce the same failure, simply by turning on -Bsymbolic-functions
with the Gnu linker. Even though the symbol is bound internally, it's
still exported to the dynamic symbol table, and is exposed to a COPY
relocation.)
I've backed out part of the fix for PR 13577, and -Bsymbolic (or
-Bsymbolic-functions) can now be used with --dynamic-list, but if the
two are used together, we do not set DT_SYMBOLIC or DF_SYMBOLIC
(this matches Gnu ld behavior). We now treat symbols listed in the
dynamic list as premptible, but we do not automatically treat symbols
not listed there as non-premptible.
gold/
PR gold/13577
PR gold/16992
* layout.cc (Layout::finish_dynamic_section): Don't set DT_SYMBOLIC or
DF_SYMBOLIC if --dynamic-list option is used.
* options.cc (General_options::finalize): --dynamic-list is not
mutually exclusive with -Bsymbolic.
* symtab.h (Symbol::is_preemptible): Don't exclude dynamic symbols not
listed in --dynamic-list.
* testsuite/Makefile.am (dynamic_list_lib2.so): Add
-Bsymbolic-functions.
* testsuite/Makefile.in: Regenerate.
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gold/
PR gold/17971
* incremental.cc: Remove redundant include of "output.h".
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gold/ChangeLog:
* aarch64-reloc.def (TLSLE_MOVW_TPREL_G2, TLSLE_MOVW_TPREL_G1,
TLSLE_MOVW_TPREL_G1_NC, TLSLE_MOVW_TPREL_G0, TLSLE_MOVW_TPREL_G0_NC,):
New relocation.
* aarch64.cc (Target_aarch64::Scan::local): Add cases for new
TLSLE_MOVW_* relocations.
(Target_aarch64::Scan::global): Likewise.
(Target_aarch64::Relocate::relocate): Likewise.
(Target_aarch64::Relocate::relocate_tls): Add cases and handlings
for new TLSLE_MOVW_* relocations.
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Output an ARM state mapping symbol at the start of the PLT. With the
current code objdump will fail to disassemble the PLT that gold
creates.
gold/ChangeLog:
2015-02-11 Will Newton <will.newton@linaro.org>
PR gold/13321
* arm.cc (Target_arm::make_plt_section): Create an ARM
state mapping symbol at the start of the PLT.
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There are
two_file_shared_2_pic_1_test_LDADD = two_file_test_2_pic.o two_file_shared_1.so
There should be two_file_shared_1.so, not two_file_shared_2.so in
two_file_shared_2_pic_1_test_DEPENDENCIES.
* testsuite/Makefile.am (two_file_shared_2_pic_1_test_DEPENDENCIES):
Replace two_file_shared_2.so with two_file_shared_1.so.
* testsuite/Makefile.in: Regenerated.
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* testsuite/Makefile.am (MOSTLYCLEANFILES): Add libweak_undef_2.a,
plugin_test_thin.a and defsym_test.
* testsuite/Makefile.in: Regenerate.
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2015-02-04 Peter Collingbourne <pcc@google.com>
* plugin.cc (Pluginobj::get_symbol_resolution_info): Resolve
forwarding symbols when computing symbol resolution info for plugins.
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When an LTO linker plugin claims an external member of a thin archive, gold
does not properly unlock the file and make its file descriptor available for
reuse. This patch fixes the problem by modifying Archive::include_member to
unlock the object file via an RAII class instance, ensuring that it will be
unlocked no matter what path is taken through the function.
gold/
PR gold/15660
* archive.cc (Thin_archive_object_unlocker): New class.
(Archive::include_member): Unlock external members of thin archives.
* testsuite/Makefile.am (plugin_test_1): Rename .syms files.
(plugin_test_2): Likewise.
(plugin_test_3): Likewise.
(plugin_test_4): Likewise.
(plugin_test_5): Likewise.
(plugin_test_6): Likewise.
(plugin_test_7): Likewise.
(plugin_test_8): Likewise.
(plugin_test_9): Likewise.
(plugin_test_10): Likewise.
(plugin_test_11): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/plugin_test.c (claim_file_hook): Check for parallel .syms
file to decide whether to claim file.
(all_symbols_read_hook): Likewise.
* testsuite/plugin_test_1.sh: Adjust expected output.
* testsuite/plugin_test_2.sh: Likewise.
* testsuite/plugin_test_3.sh: Likewise.
* testsuite/plugin_test_6.sh: Likewise.
* testsuite/plugin_test_tls.sh: Likewise.
* testsuite/plugin_test_11.sh: New testcase.
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gold/
* descriptors.cc (Descriptors::open): Set artificially-low limit for
file descriptors when debugging enabled. Add debug output.
(Descriptors::release): Add debug output.
(Descriptors::close_some_descriptor): Likewise.
(Descriptors::close_all): Likewise.
* fileread.cc (File_read::lock): Likewise.
(File_read::unlock): Likewise.
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We need to check that the output is executable before assuming that we
can replace the reference with zero.
2015-02-02 Cary Coutant <ccoutant@google.com>
gold/
* x86_64.cc (Target_x86_64::Relocate::relocate_tls): Check for
executable output file.
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This is a feature required in chromeos arm development work.
Tested:
1) Built passed all-gold on x86_64 machine
2) Tested with basic gold aarch64 ifunc unittests -
a) global ifunc, statically/non-statically linked
b) local ifunc, statically/non-statically linked
c) global/local, other shared library routine mixed,
statically/non-statically linked
d) arm/thumb mode ifunc
e) linking chrome browser passed
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Similar to b86ac8e3
* powerpc.cc (Target_powerpc::Relocate::relocate): Correct GOT_TLSLD
and GOT_TLSGD to LE optimization.
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