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2015-02-04Combine loop epilogue into main loop body to reduce duplication.Rafael Ávila de Espíndola2-13/+7
2015-02-04Add missing ChangeLog entry.Cary Coutant1-0/+7
2015-02-04Resolve forwarding symbols in plugins.Peter Collingbourne2-6/+18
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.
2015-02-03Add missing ChangeLog entries.Cary Coutant1-0/+39
2015-02-03Fix a file descriptor leak in gold.Cary Coutant10-154/+321
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.
2015-02-03Add extra debugging output for files and descriptors.Cary Coutant2-0/+19
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.
2015-02-02Fix bug with previous patch for unresolved TLS symbol.Cary Coutant2-1/+8
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.
2015-01-29This patch adds IFUNC support for arm gold backend.Han Shen4-48/+606
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
2015-01-29Correct GOLD PowerPC64 local-dynamic TLS linker optimizationAlan Modra2-6/+15
Similar to b86ac8e3 * powerpc.cc (Target_powerpc::Relocate::relocate): Correct GOT_TLSLD and GOT_TLSGD to LE optimization.
2015-01-28Allow undefined references to TLS symbols.Cary Coutant2-3/+24
When --warn-unresolved-symbols is used, gold tries to create a dynamic relocation for it, and gives an internal error if the TLS segment has not already been created. This patch allows the IE-to-LE optimization for an undefined symbol when building an executable, which suppresses the dynamic relocation, and relaxes the requirement to have a TLS segment when applying a relocation for an undefined symbol. 2015-01-28 Cary Coutant <ccoutant@google.com> gold/ * x86_64.cc (Target_x86_64::Scan::global): Allow IE-to-LE optimization for undef TLS symbols. (Target_x86_64::Relocate::relocate_tls): Likewise. (Target_x86_64::Relocate::tls_ie_to_le): Likewise.
2015-01-252015-01-25 Cary Coutant <ccoutant@google.com>Cary Coutant2-7/+13
gold/ * output.cc (Output_segment::set_section_addresses): Fix calculation of size of relro segment.
2015-01-22[GOLD] Correct powerpc64 ifunc plt entry testAlan Modra2-4/+10
Found when attempting to build an ELFv2 Linux kernel. We don't generally need a plt entry for ELFv2 got relocs, only on ifunc, just like ppc32. * powerpc.cc (Target_powerpc::Scan::local <got relocs>): Correct condition for need of ifunc plt entry. (Target_powerpc::Scan::global <got relocs>): Likewise.
2015-01-14Fix a bug in resolving HI16/LO16 relocation pairs for MIPS.Cary Coutant2-13/+28
2015-01-14 Sasa Stankovic <Sasa.Stankovic@imgtec.com> gold/ * mips.cc (reloc_high): Add r_sym. (Mips_relocate_functions::relhi16): Add r_sym parameter. Pass r_sym to reloc_high constructor. (Mips_relocate_functions::relgot16_local): Likewise. (Mips_relocate_functions::rello16): Add r_sym parameter. Use r_sym and r_type to decide whether LO16 matches HI16. (Target_mips::Relocate::relocate): Pass r_sym to calls to relhi16, rello16 and relgot16_local.
2015-01-09Don't align start of segment unless alignment is larger than page size.Cary Coutant2-1/+8
This fixes an issue where a page-aligned data section, combined with -z relro, could lead to a gap between text and data segments larger than a page, and we would fail to overlap the segments in the file. gold/ * layout.cc (Layout::set_segment_offsets): Don't align start of segment unless alignment is larger than page size.
2015-01-06Handle stack split for x32H.J. Lu12-16/+357
X32 uses cmp %fs:NN,%esp, lea NN(%rsp),%r10d, lea NN(%rsp),%r11d, instead of cmp %fs:NN,%rsp, lea NN(%rsp),%r10, lea NN(%rsp),%r11. This patch handles it. PR gold/17729 * configure.ac (DEFAULT_TARGET_X86_64): Don't set for x32. (DEFAULT_TARGET_X32): Set for x32. * x86_64.cc (cmp_insn_32): New. (lea_r10_insn_32): Likewise. (lea_r11_insn_32): Likewise. (cmp_insn_64): Likewise. (lea_r10_insn_64): Likewise. (lea_r11_insn_64): Likewise. (Target_x86_64<size>::do_calls_non_split): Handle x32. * testsuite/Makefile.am (check_SCRIPTS): Add split_x32.sh. (check_DATA): Add split_x32 files. (split_x32_[1234n].o): New targets. (split_x32_[124]): New targets. (split_x32_[1234r].stdout): New targets. * testsuite/split_x32.sh: New file. * testsuite/split_x32_1.s: Likewise. * testsuite/split_x32_2.s: Likewise. * testsuite/split_x32_3.s: Likewise. * testsuite/split_x32_4.s: Likewise. * testsuite/split_x32_n.s: Likewise. * configure: Regenerated. * testsuite/Makefile.in: Likewise.
2015-01-06Handle Initial-Exec to Local-Exec for x32H.J. Lu2-0/+12
PR gold/17809 * x86_64.cc (Target_x86_64<size>::Relocate::tls_ie_to_le): Handle x32.
2015-01-02Regenerate Makeile.in file for copyright updateAlan Modra1-1/+1
2015-01-02Correct printed year in copyright notices for gold.Alan Modra3-2/+7
2015-01-02ChangeLog rotatation and copyright year updateAlan Modra393-395/+399
2014-12-25ARM: Add support for value 3 of Tag_ABI_VFP_args attributeAlan Modra2-6/+12
Missing from 5c294fee elfcpp/ * arm.h: Add enums for Tag_ABI_FP_number_model and Tag_ABI_VFP_args. gold/ * arm.cc (Target_arm::do_adjust_elf_header): Provide namespace on new enums. (Target_arm::merge_object_attributes, ): Likewise.
2014-12-25ARM: Add support for value 3 of Tag_ABI_VFP_args attributeTerry Guo2-3/+19
*** bfd/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * elf32-arm.c (elf32_arm_merge_eabi_attributes): Handle new Tag_ABI_VFP_args value and replace hardcoded values by enum values. (elf32_arm_post_process_headers): Set e_flags in ELF header as hard float only when Tag_ABI_VFP_args is 1, using new enum value AEABI_VFP_args_vfp to check that. *** binutils/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * readelf.c (arm_attr_tag_ABI_VFP_args): Add "compatible". *** gdb/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * arm-tdep.c (arm_gdbarch_init): Explicitely handle value 3 of Tag_ABI_VFP_args. Also replace hardcoded values by enum values in the switch handling the different values of Tag_ABI_VFP_args. *** gold/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * arm.cc (Target_arm::do_adjust_elf_header): Set e_flags in ELF header as hard float only when Tag_ABI_VFP_args is 1, using new enum value AEABI_VFP_args_vfp to check that. (Target_arm::merge_object_attributes): Handle new Tag_ABI_VFP_args value and replace hardcoded values by enum values. *** include/elf/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * arm.h: New AEABI_FP_number_model_* and AEABI_VFP_args_* enum values. *** ld/testsuite/ChangeLog *** 2014-12-25 Thomas Preud'homme <thomas.preudhomme@arm.com> * ld-arm/attr-merge-2a.s: Add Tag_ABI_VFP_args. * ld-arm/attr-merge-2b.s: Likewise. * ld-arm/attr-merge-2.attr: Likewise. * ld-arm/attr-merge-4a.s: Add Tag_ABI_FP_number_model and Tag_ABI_VFP_args. * ld-arm/attr-merge-4b.s: Likewise. * ld-arm/attr-merge-4.attr: Likewise. * ld-arm/attr-merge-6a.s: Likewise. * ld-arm/attr-merge-6b.s: Likewise. * ld-arm/attr-merge-6.attr: Add Tag_ABI_FP_number_model.
2014-12-22gold/Cary Coutant2-1/+6
* powerpc.cc (Target_powerpc::relocate): Fix overflow check.
2014-12-20Change SometimesInlineFunction to "return i * i * 3;"H.J. Lu2-1/+7
The debug_msg test has 2 implementations of SometimesInlineFunction: int SometimesInlineFunction(int i) { return i; } int SometimesInlineFunction(int i) { return i * i; } and One Definition Rule (ODR) violation detection expects they will be compiled into functions of different sizes. Hower, on x86, GCC 4.7 and newer compile them into functions of the same size and ODR violation detection test fails. This patch changes int SometimesInlineFunction(int i) { return i; } to int SometimesInlineFunction(int i) { return i * i * 3; } so that it will be compiled into a function of larger size. PR gold/14608 * testsuite/debug_msg.cc (SometimesInlineFunction): Changed to "return i * i * 3;".
2014-12-16Fix internal error in gold when -Map and --compress-debug-sections are usedCary Coutant2-4/+21
together. gold/ * mapfile.cc (Mapfile::print_input_section): Print uncompressed sizes. (Mapfile::print_output_data): Use current_data_size() to avoid assert for sections requiring postprocessing; if address is not valid, print 0. (Mapfile::print_output_section): Use current_data_size(); print note that addresses and sizes are before compression.
2014-12-14Cast current_group_size to unsigned longH.J. Lu2-1/+6
* aarch64.cc (AArch64_relocate_functions::maybe_apply_stub): Cast current_group_size to unsigned long when reporting error.
2014-12-10Give informative error message for stub-group-sizeJing Yu2-10/+26
This patch gives current stub-group-size in error message when stub is too far away. * aarch64.cc (Target_aarch64): Add new variable: stub_group_size_. (AArch64_relocate_functions::maybe_apply_stub): Add new parameter. Update error message. (Target_aarch64::do_relax): Use absolute value of option stub_group_size. Replace local variable with class member stub_group_size_.
2014-12-04ChangeLog typo fixAlan Modra1-1/+1
2014-12-04PowerPC gold, fix 32-bit branch address arithmeticAlan Modra2-5/+14
Mixing 64-bit and 32-bit types led to the wrong promotions. Keep calculation in same type. Also fix a case where PLTREL25 reloc addend should be ignored. * Powerpc.cc (Target_powerpc::Branch_info::make_stub): Ignore addend of PLTREL24 reloc when not generating a plt stub. Make max_branch_offset an "Address". (Stub_table::can_read_stub): Make max_branch_offset an "Address". (Target_powerpc::Relocate::relocate): Likewise.
2014-12-04powerpc gold, work around pr17670Alan Modra3-24/+44
pr17670 is about an assert triggering on a branch to an undefined weak symbol, the symbol being undefined due to dropping its comdat group section. (Well sort of. The symbol is actually defined in an .opd section which isn't part of the group, but the code section the opd entry points at is dropped.) So don't assert. Also, don't make long branch stubs to such symbols, and arrange to have target-reloc.h code warn when applying relocs that use the sym. PR 17670 * symtab.cc (Symbol::set_undefined): Remove assertion. * powerpc.cc (Target_powerpc::symval_for_branch): Don't assert on symbols defined in discarded sections, instead return false. Rearrange params, update all callers. (Target_powerpc::Branch_info::make_stub): Don't make stubs for branches to syms in discarded sections. (Global_symbol_visitor_opd::operator()): Set discarded opd syms undefined and flag as discarded. (Target_powerpc::Relocate::relocate): Localize variable.
2014-12-03Compile pie_copyrelocs_test.cc with -fno-exceptions ↵H.J. Lu3-5/+26
-fno-asynchronous-unwind-tables PR gold/17675 * testsuite/Makefile.am (pie_copyrelocs_test_CXXFLAGS): New. * testsuite/Makefile.in: Regenerated.
2014-12-04powerpc gold, fix pr17566Alan Modra2-3/+23
Code stolen from arm.cc. PR 17566 * powerpc.cc (Target_powerpc::Scan::local): Use add_local_section when adding dynamic relocations against section symbols.
2014-12-01Add support for -z global.Dmitriy Ivanov3-0/+11
gold/ * layout.cc (Layout::finish_dynamic_section): When '-z global' is specified set DF_1_GLOBAL in DT_FLAGS_1 flags. * options.h (General_options): New -z option (global).
2014-12-01Fix extraneous warning about executable stack.Cary Coutant2-3/+17
PR gold/17578 notes that gold will print a warning about an executable stack when the -z execstack option is given, even when there is no --warn_execstack option. The warning is completely useless and unexpected, since the user explicitly requested an executable stack, and did not even ask for warnings. This patch fixes that, and adds an extra warning when --warn_execstack and -z noexecstack are both given and an input file requires an executable stack. gold/ PR gold/17578 * layout.cc (Layout::layout_gnu_stack): Don't warn when -z execstack is given. (Layout::create_executable_stack_info): Warn when -z noexecstack is given but some inputs require executable stack.
2014-11-26Update list of debug sections for --strip-debug-xxx options.Cary Coutant2-0/+15
Add .debug_gdb_scripts, .debug_gnu_pubnames, .debug_gnu_pubtypes, and .debug_str_offsets to lists of sections to strip or keep when stripping debug info. gold/ * layout.cc (gdb_sections): Keep .debug_gdb_scripts and .debug_str_offsets; strip .debug_gnu_pubnames and .debug_gnu_pubtypes. (lines_only_debug_sections): Strip all four new sections.
2014-11-26Fix for gold linking tlsdesc into an executable with -pie.Han Shen2-1/+11
(Also included in this patch is a minor typo fix in gold/ChangeLog.) When linking the following tlsdesc access sequence into an executable with -pie, adrp x0, :tlsdesc:tls_gd ldr x1, [x0, #:tlsdesc_lo12:tls_gd] add x0, x0, :tlsdesc_lo12:tls_gd .tlsdesccall tls_gd blr x1 mrs x1, tpidr_el0 add x0, x1, x0 ldr w0, [x0] current gold-aarch64 backend does tls-desc-gd-to-ie relaxation, into adrp x0, 1000 <__FRAME_END__+0x720> ldr x1, [x0,#4064] ;; <=== the target register should be x0 nop nop mrs x1, tpidr_el0 add x0, x1, x0 ldr w0, [x0] This code is wrong. The fix changes ldr target register into x0.
2014-11-26Retry powerpc gold stub grouping when groups prove too largeAlan Modra2-132/+243
An unusually large number of stubs can result in the default section group size being too large; sections plus stubs exceed the range of a branch. Restarting the relaxation pass with a smaller group size can sometimes help. * powerpc.cc (struct Stub_table_owner): New. (Powerpc_relobj): Rename stub_table_ to stub_table_index_, an unsigned int vector. Update all references. (powerpc_relobj::set_stub_table): Take an unsigned int param rather than a Stub_table. Update callers. (Powerpc_relobj::clear_stub_table): New function. (Target_powerpc): Add relax_failed_, relax_fail_count_ and stub_group_size_ vars. (Target_powerpc::new_stub_table): Delete. (max_branch_delta): New function, extracted from.. (Target_powerpc::Relocate::relocate): ..here.. (Target_powerpc::Branch_info::make_stub): ..and here. Return status on whether stub created successfully. (Stub_control::Stub_control): Add "no_size_errors" param. Move default sizing to.. (Target_powerpc::do_relax): ..here. Init stub_group_size_ and reduce on relax failure. (Target_powerpc::group_sections): Add "no_size_errors" param. Use stub_group_size_. Set up group info in a temp vector, before building Stub_table vector. Account for input sections possibly already converted to relaxed sections. (Stub_table::init): Delete. Merge into.. (Stub_table::Stub_table): ..here. (Stub_table::can_reach_stub): New function. (Stub_table::add_plt_call_entry): Add "from" parameter and return true iff stub could be reached. (Stub_table::add_long_branch_entry): Similarly. Add "r_type" param too. (Stub_table::clear_stubs): Add "all" param.
2014-11-26[GOLD] PowerPC relaxation corner caseAlan Modra2-0/+14
It's possible for the section grouping code to decide that the last section looked at (the first section by address) doesn't fit into a group. In one case that section is already a group owner and that is handled correctly. In other cases the section should be put into its own group. Like this: * powerpc.cc (Stub_control::set_output_and_owner): New function. (Target_powerpc::group_sections): Use it.
2014-11-25Add file size to ELF symbol labelling start of a binary file.Cary Coutant3-8/+16
gold/ * binary.cc (Binary_to_elf::sized_convert): Add size to _start symbol. (Binary_to_elf::write_symbol): Add st_size parameter. * binary.h (Binary_to_elf::write_symbol): Add st_size parameter.
2014-11-25Fix corrupted .eh_frame section with LTO and --gc-sections.Cary Coutant3-6/+30
When --gc-sections is turned on during an LTO link, the .eh_frame sections from deferred files are processed before those from the replacement files. As a result, the section end-cap from crtendS.o is placed ahead of the .eh_frame data from the replacement files. This patch fixes the bug by skipping the layout of the deferred sections during GC pass 2. gold/ PR gold/17639 * object.cc (Sized_relobj_file): Initialize is_deferred_layout_. (Sized_relobj_file::do_layout): Handle deferred sections properly during GC pass 1. Don't add reloc sections to deferred list twice. * object.h (Sized_relobj_file::is_deferred_layout): New function. (Sized_relobj_file::is_deferred_layout_): New data member.
2014-11-21Check PC-relative offset overflow in PLT entryH.J. Lu2-3/+14
PR gold/17619 * x86_64.cc (Output_data_plt_x86_64_standard<size>::do_fill_plt_entry): Check PC-relative offset overflow in PLT entry.
2014-11-21PPC gold doesn't check for overflow properlyAlan Modra2-4/+9
* powerpc.cc (Target_powerpc::Relocate::relocate): Correct test for undefined weaks.
2014-11-20PPC gold doesn't check for overflow properlyAlan Modra2-37/+60
Corrects overflow test for rel14, addr14, rel24, addr24 branch relocs, and prints an information message to give a hint as to how a branch that can't reach a stub might be cured. bfd/ * elf64-ppc.c (group_sections): Init stub14_group_size from --stub-group-size parameter divided by 1024. gold/ * powerpc.cc (Stub_control::Stub_control): Init stub14_group_size_ from --stub-group-size parameter divided by 1024. (Powerpc_relocate_functions::rela, rela_ua): Add fieldsize template parameter. Update all uses. (Target_powerpc::Relocate::relocate): Rename has_plt_value to has_stub_value. Set for long branches. Don't report overflow for branch to undefined weak symbols. Print info message on overflowing branch to stub.
2014-11-20Default powerpc64 to --plt-thread-safe for GoAlan Modra2-0/+6
Go is multi-threaded, so use thread-safe plt stubs. __go_go doesn't actually start threads, but is a convenient libgo function with a reasonably unique name that is called by all Go executables. (Threads are started by a static function of libgo, runtime_newosproc, called by a whole lot of global functions, including runtime_starttheworld and runtime_main.) bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Add __go_go to thread_starters. gold/ * powerpc.cc (Target_powerpc::do_relax): Add __go_go to thread_starters.
2014-11-14Don't make PLT entry for R_X86_64_GOTPLT64H.J. Lu2-7/+9
* x86_64.cc (Target_x86_64<size>::Scan::global): Don't make PLT entry for R_X86_64_GOTPLT64. (Target_x86_64<size>::Relocate::relocate): Update comments for R_X86_64_GOTPLT64.
2014-11-07Fix race condition when using --threads with linker plugins.Evgeniy Dushistov3-1/+14
2014-11-06 Evgeniy Dushistov <dushistov@mail.ru> gold/ * plugin.cc: use lock to searialize calls of Plugin_manager::claim_file * plugin.h: add lock definition
2014-10-29Misc about gold for aarch64 backend.Han Shen5-142/+660
The patch does the following things: -- Add support for ifunc. -- Enable safe icf -- Add support for TLSLD relocations R_AARCH64_TLSLD_ADR_PAGE21, R_AARCH64_TLSLD_ADD_LO12_NC, R_AARCH64_TLSLD_MOVW_DTPREL_G1, R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC. (R_AARCH64_TLSLD_MOVW_* are used by LLVM.) -- Add support for TLSLD->TLSLE relaxation. -- Add support for R_AARCH64_LD_PREL_LO19, R_AARCH64_ADR_PREL_LO21. -- Fix 2 encoding bugs in AArch64_relocate_functions::update_movnz. -- Correct TLS relocation properties in gold/aarch64-reloc.def. -- Update testsuite/icf_safe_so_test.cc, testsuite/icf_safe_test.sh. gold/ 2014-10-29 Han Shen <shenhan@google.com> Jing Yu <jingyu@google.com> * aarch64-reloc.def: Add LD_PREL_LO12, ADR_PREL_LO21, TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. Change property of TLS relocations to Symbol::TLS_REF. * aarch64.cc (Target_aarch64::do_can_check_for_function_pointers): New method. (Target_aarch64::reloc_needs_plt_for_ifunc): New method. (Target_aarch64::tls_ld_to_le): New method. (Target_aarch64::aarch64_info): Enable can_icf_inline_merge_sections for 64bit targets. (Output_data_plt_aarch64::irelative_rel_): New data member. (Output_data_plt_aarch64::add_entry): Add irelative entries to plt. (Output_data_plt_aarch64::add_local_ifunc_entry): New method. (Output_data_plt_aarch64::add_relocation): New method. (Output_data_plt_aarch64::do_write): Add gold_assert on got_irelative offset. Add got_irelative size to got size. (AArch64_relocate_functions): Typedef AArch64_valtype. Replace long type string with the new typename. (AArch64_relocate_functions::update_adr): Replace parameter x with immed. (AArch64_relocate_functions::update_movnz): Correct wrong val mask. (AArch64_relocate_functions::reloc_common): New method. (AArch64_relocate_funcsions::rela_general): Extract common part out into reloc_common method. (AArch64_relocate_functions::rela_general): Likewise. (AArch64_relocate_functions::pcrela_general): Likewise. (AArch64_relocate_functions::adr): New method. (AArch64_relocate_functions::adrp): Calculate immed before calling update_adr. (AArch64_relocate_functions::adrp): Likewise. (AArch64_relocate_functions::movnz): Cast x to SignedW type when comparing x to 0. Calculate immed from ~x when x < 0. (Target_aarch64::optimize_tls_reloc): Add new cases for TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. (Target_aarch64::possible_function_pointer_reloc): Implement this method. (Target_aarch64::Scan::local_reloc_may_be_function_pointer): Update comment. (Target_aarch64::Scan::local): Add codes to handle STT_GNU_IFUNC symbol. Add cases for TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. (Target_aarch64::Scan::global): Add codes to handle STT_GNU_IFUNC symbol. Add cases for TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. (Target_aarch64::make_plt_entry): Call add_entry with two more parameters. (Target_aarch64::make_local_ifunc_plt_entry): New method. (Target_aarch64::Relocate::relocate): Add cases for LD_PREL_LO19, ADR_PREL_LO21, TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. (Target_aarch64::Relocate::relocate_tls): Add cases for TLSLD_ADR_PAGE21, TLSLD_ADD_LO12_NC, TLSLD_MOVW_DTPREL_G1, TLSLD_MOVW_DTPREL_G0_NC. * testsuite/icf_safe_so_test.cc: Correct test comment. * testsuite/icf_safe_test.sh: Add AArch64 arch.
2014-10-22[GOLD] Add gcc-4.9 libgomp symbols requiring --plt-thread-safe for power7Alan Modra2-0/+11
As for bfd.ld. Refer 2300b5a14 * powerpc.cc (do_relax): Add gcc-4.9 libgomp functions to thread_starter.
2014-10-18* configure.tgt (targ_extra_obj) [aarch64*-*]: Define.Andreas Schwab2-0/+5
2014-10-17Add "typename" keyword to satisfy GCC 4.2.Cary Coutant2-1/+6
gold/ * aarch64.cc (AArch64_relocate_functions::maybe_apply_stub): Add "typename" keyword.
2014-10-15Here we have the patch for gold aarch64 backend to support relaxation.Han Shen3-78/+2189
In short relaxation is the linker's generation of stubs that fixes the out-of-range jumps/branches in the original object file. With this implementation, we are able to link a 456MB aarch64 application. Tested: 1) Build natively on x86_64 and aarch64 machines. 2) Pass unit tests regarding relaxation.
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