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* Update year range in copyright notice of binutils filesAlan Modra2019-01-011-1/+1
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* Add -e to test scripts where necessary.Rahul Chaudhry2017-01-231-2/+3
| | | | | | | gold/ * testsuite/icf_safe_so_test.sh: Use "set -e". * testsuite/icf_safe_test.sh: Likewise. * testsuite/icf_test.sh: Likewise.
* Update year range in copyright notice of all files.Alan Modra2017-01-021-1/+1
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* Copyright update for binutilsAlan Modra2016-01-011-1/+1
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* Add s390 backend.Marcin Kościelnicki2015-10-281-1/+1
| | | | | | | | | | | | | | | | elfcpp/ * s390.h: New file. gold/ * s390.cc: New file. * Makefile.am (TARGETSOURCES): Add s390.cc. (ALL_TARGETOBJS): Add s390.o. * Makefile.in: Regenerate. * configure.ac: Add s390 support. * configure: Regenerate. * configure.tgt: Add s390-*-* and s390x-*-*. * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Add s390 support.
* ChangeLog rotatation and copyright year updateAlan Modra2015-01-021-1/+1
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* Misc about gold for aarch64 backend.Han Shen2014-10-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Update copyright yearsAlan Modra2014-03-051-1/+1
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* * powerpc.cc (is_branch_reloc): Forward declare.Alan Modra2013-03-121-12/+18
| | | | | | | | | | | | | | | | | | | (Target_powerpc::do_can_check_for_function_pointers): New predicate. (Target_powerpc::Scan::local_reloc_may_be_function_pointer): Return false for 64-bit, true for 32-bit non-branch relocs. (Target_powerpc::Scan::global_reloc_may_be_function_pointer): Likewise. * testsuite/Makefile.am (icf_test): Use linker map file instead of nm output. (icf_safe_test): Generate linker map file as well as nm output. (icf_safe_so_test): Likewise. * testsuite/Makefile.in: Regenerate. * testsuite/icf_test.sh: Parse linker map file to determine section folding. * testsuite/icf_safe_test.sh: Likewise. Expect folding for PowerPC. * testsuite/icf_safe_so_test.sh: Likewise. (X86_32_or_ARM_specific_safe_fold): Merge into.. (arch_specific_safe_fold): ..this. (X86_64_specific_safe_fold): Delete unused function.
* Add support for tilegx in gold.Walter Lee2012-09-151-1/+1
| | | | | | | | | | | | | | | | | | * configure.ac (ENABLE_GOLD): support tilegx* * configure: rebuild elfcpp: * tilegx.h: New file. * elfcpp.h: add EM_TILEGX. gold: * tilegx.cc: New file. * Makefile.am (TARGETSOURCES): Add tilegx.cc (ALL_TARGETOBJS): Add tilegx.$(OBJEXT) * configure.tgt: Add entries for tilegx*. * configure.ac: Likewise. * Makefile.in: Rebuild. * configure: Likewise. * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Handle tilegx.
* * testsuite/icf_safe_so_test.sh: Add #!/bin/sh to start.Sriraman Tallam2011-03-211-1/+3
| | | | | | | | | Change == to -eq. * testsuite/icf_string_merge_test.sh: Add #!/bin/sh to start. * testsuite/icf_safe_test.sh: Add #!/bin/sh to start. Change == to -eq. * testsuite/icf_sht_rel_addend_test.sh: Add #!/bin/sh to start. * testsuite/icf_preemptible_functions_test.sh: Add #!/bin/sh to start.
* 2010-09-17 Doug Kwan <dougkwan@google.com>Doug Kwan2010-09-171-1/+1
| | | | | | | * arm.cc (Target_arm::Relocate::relocate): Ignore symbol type and defintion if relocation uses GOT entries of the symbol. * testsuite/icf_safe_test.sh: Fix test. * testsuite/icf_safe_so_test.sh: Fix test.
* * i386.cc (Target_i386::can_check_for_function_pointers): New function.Sriraman Tallam2010-03-041-3/+3
| | | | | | | | | | | | | (Scan::possible_function_pointer_reloc): New function. (Scan::local_reloc_may_be_function_pointer): Change to call possible_function_pointer_reloc. (Scan::global_reloc_may_be_function_pointer): Ditto. * icf.h (Icf::check_section_for_function_pointers): Change to reject relocations in ".data.rel.ro._ZTV" section. * testsuite/icf_safe_so_test.sh: Change to pass i386. * testsuite/icf_safe_so_test.cc: Ditto. * testsuite/icf_safe_test.cc: Ditto. * testsuite/icf_safe_test.sh: Ditto.
* 2010-02-12 Sriraman Tallam <tmsriram@google.com>Sriraman Tallam2010-02-131-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * arm.cc (Scan::local_reloc_may_be_function_pointer): New function. (Scan::global_reloc_may_be_function_pointer): New function. * sparc.cc (Scan::local_reloc_may_be_function_pointer): New function. (Scan::global_reloc_may_be_function_pointer): New function. * powerpc.cc (Scan::local_reloc_may_be_function_pointer): New function. (Scan::global_reloc_may_be_function_pointer): New function. * i386.cc (Scan::local_reloc_may_be_function_pointer): New function. (Scan::global_reloc_may_be_function_pointer): New function. * x86_64.cc (Scan::local_reloc_may_be_function_pointer): New function. (Scan::global_reloc_may_be_function_pointer): New function. (Scan::possible_function_pointer_reloc): New function. (Target_x86_64::can_check_for_function_pointers): New function. * gc.h (gc_process_relocs): Scan relocation types to determine if function pointers were taken for targets that support it. * icf.cc (Icf::find_identical_sections): Include functions for folding in safe ICF whose pointer is not taken. * icf.h (Secn_fptr_taken_set): New typedef. (fptr_section_id_): New member. (section_has_function_pointers): New function. (set_section_has_function_pointers): New function. (check_section_for_function_pointers): New function. * options.h: Fix comment for safe ICF option. * target.h (can_check_for_function_pointers): New function. * testsuite/Makefile.am: Add icf_safe_so_test test case. Modify icf_safe_test for X86-64. * testsuite/Makefile.in: Regenerate. * testsuite/icf_safe_so_test.cc: New file. * testsuite/icf_safe_so_test.sh: New file. * testsuite/icf_safe_test.cc (kept_func_3): New function. (main): Change to take pointer to function kept_func_3. * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Check if safe folding is done correctly for X86-64.
* * gc.h (gc_process_relocs): Check if icf is enabled using newSriraman Tallam2009-10-131-0/+50
function. * gold.cc (queue_initial_tasks): Likewise. (queue_middle_tasks): Likewise. * object.cc (do_layout): Likewise. * symtab.cc (is_section_folded): Likewise. * main.cc (main): Likewise. * reloc.cc (Read_relocs::run): Likewise. (Sized_relobj::do_scan_relocs): Likewise. * icf.cc (is_function_ctor_or_dtor): New function. (Icf::find_identical_sections): Check if function is ctor or dtor when safe icf is chosen. * options.h (General_options::icf): Change option to be an enum. (Icf_status): New enum. (icf_enabled): New method. (icf_safe_folding): New method. (set_icf_status): New method. (icf_status_): New variable. * (options.cc) (General_options::finalize): Set icf_status_. * testsuite/Makefile.am: Add commands to build icf_safe_test. Modify icf_test and icf_keep_unique_test to use the --icf enum flag. * testsuite/icf_safe_test.sh: New file. * testsuite/icf_safe_test.cc: New file.
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