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2018-02-22New plugin interface to get list of symbols wrapped with --wrap option.Sriraman Tallam6-7/+205
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.
2018-02-15Fix symbol resolution with linker plugins for defsym symbols.Sriraman Tallam4-8/+137
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.
2018-01-03Update year range in copyright notice of binutils filesAlan Modra83-83/+83
2017-12-11Add plugin API for processing plugin-added input filesStephen Crane4-6/+227
Gold plugins may wish to further process an input file added by a plugin. For example, the plugin may need to assign a unique segment for sections in a plugin-generated input file. This patch adds a plugin callback that the linker will call when reading symbols from a new input file added after the all_symbols_read event (i.e. an input file added by a plugin). 2017-12-11 Stephen Crane <sjc@immunant.com> * plugin-api.h: Add new plugin hook to allow processing of input files added by a plugin. (ld_plugin_new_input_handler): New function hook type. (ld_plugin_register_new_input): New interface. (LDPT_REGISTER_NEW_INPUT_HOOK): New enum val. (tv_register_new_input): New member. * plugin.cc (Plugin::load): Include hooks for register_new_input in transfer vector. (Plugin::new_input): New function. (register_new_input): New function. (Plugin_manager::claim_file): Call Plugin::new_input if in replacement phase. * plugin.h (Plugin::set_new_input_handler): New function. * testsuite/plugin_new_section_layout.c: New plugin to test new_input plugin API. * testsuite/plugin_final_layout.sh: Add new input test. * testsuite/Makefile.am (plugin_layout_new_file): New test case. * testsuite/Makefile.in: Regenerate.
2017-12-01Disallow --incremental with -pie and force -no-pie for incremental tests.Cary Coutant2-36/+36
This is a partial fix for the gold testsuite failures documented in PR 21090. The use of -fpie triggers some mov-to-lea optimizations that are not compatible with incremental linking, so those optimizations need to be disabled. We also diagnose the attempt to use -pie with incremental linking, and force -no-pie for the incremental tests in case the build has been configured to have GCC pass -pie all the time. We still have a problem where compiling with -fpie results in some GOT entries even when linking with -no-pie. This combination still causes test failures because we are not updating the GOT entries in an incremental update link. gold/ PR gold/21090 * incremental.cc (Sized_relobj_incr::do_relocate): Fix comment. * options.cc (General_options::finalize): Disallow -pie with incremental linking. * x86_64.cc (Target_x86_64::Scan::local): Don't do mov-to-lea or callq-to-direct optimizations for incremental links. (Target_x86_64::Scan::global): Likewise. (Target_x86_64::Relocate::relocate): Likewise. * testsuite/Makefile.am (incremental_test): Force -no-pie. (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.
2017-12-01Workaround GCC 7 bug with debug line numbers causing debug_msg.sh failure.Cary Coutant2-3/+11
gold/ PR gold/21841 * testsuite/debug_msg.sh: Adjust expected line numbers. * testsuite/odr_violation2.cc (DummyFunction): New function.
2017-12-01Fix incremental linking failure with GCC 7+.Cary Coutant4-4/+10
With the new compiler, we're running out of patch space for the .eh_frame section. To workaround that issue, we compile the before and after versions both with no unwind tables. gold/ PR gold/22309 * testsuite/Makefile.am (two_file_test_1_v1_ndebug.o): Compile with no EH information. (two_file_test_1_ndebug.o): Likewise. * testsuite/Makefile.in: Regenerate. * testsuite/two_file_test_1.cc: Touch to force recompilation with new flags. * testsuite/two_file_test_1_v1.cc: Likewise.
2017-12-01Fix internal error from command line with unbalanced --start-lib/--end-lib.Benjamin Peterson3-10/+64
The problem is that while the command line isn't trivially empty, it contains no input files. As gold tries to configure the number of threads to use based on the number of input files, this causes the assertion failure above. Fix this problem by making the logic in gold.cc more robust and also adding a better error message about --start-lib to options.cc. gold/ PR gold/22406 * gold.cc (queue_initial_tasks) Check for number of real input files. * options.cc (Command_line::process) Check for unterminated --start-lib options. * testsuite/Makefile.am: Add new test script. * testsuite/Makefile.in: Regenerate. * testsuite/check_empty_command_lines.sh: New test script.
2017-11-28gold: Add a newline at end of pr22266_a.cH.J. Lu1-1/+1
This patch fixes the build with GCC 4.2: gold/testsuite/pr22266_a.c:13:2: error: no newline at end of file * testsuite/pr22266_a.c: Add a newline at end of file.
2017-11-27Fix symbol values and relocation addends for relocatable links.Cary Coutant3-2/+15
The fix for PR 19291 broke some other cases where -r is used with scripts, as reported in PR 22266. The original fix for PR 22266 ended up breaking many cases for REL targets, where the addends are stored in the section data, and are not being adjusted properly. The problem was basically that in a relocatable output file (ET_REL), symbol values are supposed to be relative to the start address of their section. Usually in a relocatable file, all sections start at 0, so the failure to get this right is often irrelevant, but with a linker script, we occasionally see an output section whose starting address is not 0, and gold would occasionally write a symbol with its relocated value instead of its section-relative value. This patch reverts the recent fix for PR 22266 as well as my original fix for PR 19291. The original fix moved the symbol value adjustment to write_local_symbols, but neglected to undo a few places where the adjustment was also being applied, resulting in an occasional double adjustment. The more recent fix removed those other adjustments, but then failed to re-account for the adjustment when rewriting the relocations on REL targets. With the old attempts reverted, we now apply the symbol value adjustment to the one case that had been missed (non-section symbols in merge sections). But now we also need to account for the adjustment when rewriting the addends for RELA relocations. gold/ PR gold/19291 PR gold/22266 * object.cc (Sized_relobj_file::compute_final_local_value_internal): Revert changes from 2017-11-08 patch. Adjust symbol value in relocatable links for non-section symbols. (Sized_relobj_file::compute_final_local_value): Revert changes from 2017-11-08 patch. (Sized_relobj_file::do_finalize_local_symbols): Likewise. (Sized_relobj_file::write_local_symbols): Revert changes from 2015-11-25 patch. * object.h (Sized_relobj_file::compute_final_local_value_internal): Revert changes from 2017-11-08 patch. * powerpc.cc (Target_powerpc::relocate_relocs): Adjust addend for relocatable links. * target-reloc.h (relocate_relocs): Adjust addend for relocatable links. * testsuite/pr22266_a.c (hello): New function. * testsuite/pr22266_main.c (main): Add test for merge sections. * testsuite/pr22266_script.t: Add rule for .rodata.
2017-11-08Fix problems with -r.James Clarke5-42/+107
The fix committed for PR gold/19291 ended up breaking other cases. The commit added adjustment code to write_local_symbols, but in many cases compute_final_local_value_internal had already subtracted the output section's address. To fix this, all other adjustments are now removed, so only the one in write_local_symbols is left. gold/ PR gold/22266 * object.cc (Sized_relobj_file::compute_final_local_value_internal): Drop relocatable parameter and stop adjusting output value based on it. (Sized_relobj_file::compute_final_local_value): Stop passing relocatable to compute_final_local_value_internal. (Sized_relobj_file::do_finalize_local_symbols): Ditto. * object.h (Sized_relobj_file::compute_final_local_value_internal): Drop relocatable parameter.
2017-10-20New gold linker option -z,text-unlikely-segment.Sriraman Tallam4-0/+111
2017-10-04 Sriraman Tallam <tmsriram@google.com> * options.h (-z,text_unlikely_segment): New option. * layout.cc (Layout::layout): Create new output section for .text.unlikely sections with the new option. (Layout::segment_precedes): Check for the new option when segment flags match. * testsuite/text_unlikely_segment.cc: New test source. * testsuite/text_unlikely_segment.sh: New test script. * testsuite/Makefile.am (text_unlikely_segment): New test. * testsuite/Makefile.in: Regenerate.
2017-10-19Implement BE8 support for ARM.Umesh Kalappa4-0/+152
gold/ * arm.cc (Stub::do_fixed_endian_write):Far call stubs support for arm in the be8 mode. * testsuite/Makefile.am: New test cases. * testsuite/Makefile.in: Regenerate. * testsuite/arm_farcall_arm_arm_be8.sh: New script for arm to arm far call stubs. * testsuite/arm_farcall_thumb_thumb_be8.sh: New script for thumb to thumb far call stubs.
2017-09-20Check for export dynamic symbol options when doing symbol resolution in plugins.Teresa Johnson4-14/+142
2017-09-20 Teresa Johnson <tejohnson@google.com> * plugin.cc (is_visible_from_outside): Check for export dynamic symbol option and list. * testsuite/Makefile.am (plugin_test_12): New test. * testsuite/Makefile.in: Regenerate. * testsuite/export_dynamic_plugin.cc: New test source. * testsuite/plugin_test_12.sh: New test script.
2017-08-28Fix bad offset calculation for R_AARCH64_TLSDESC_* relocs.Igor Kudrin5-3/+153
If a custom linker script with an unexpected relative layout of .got and .got.plt sections was used, gold might produce a wrong offset when applying R_AARCH64_TLSDESC_* relocations. This patch fixes the issue by calculating "got_tlsdesc_offset" in a more direct way. gold/ * aarch64.cc (Target_aarch64::Relocate::relocate_tls): Make got_tlsdesc_offset signed and fix its calculation. * testsuite/Makefile.am (aarch64_tlsdesc): New test. * testsuite/Makefile.in: Regenerate. * testsuite/aarch64_tlsdesc.s: New test source file. * testsuite/aarch64_tlsdesc.sh: New test script. * testsuite/aarch64_tlsdesc.t: New test linker script.
2017-05-12Fix misplacement of a relaxed section on AArch64.Igor Kudrin4-3/+113
gold/ChangeLog PR gold/21430 * aarch64.cc (AArch64_relobj::convert_input_section_to_relaxed_section): Set the section offset to -1ULL. (Target_aarch64::relocate_section): Adjust the view in case of a relaxed input section. * testsuite/Makefile.am (pr21430): New test. * testsuite/Makefile.in: Regenerate * testsuite/pr21430.s: New test source file. * testsuite/pr21430.sh: New test script.
2017-04-27[GOLD] testsuite/plugin_section_order.c fixAlan Modra1-0/+1
* testsuite/plugin_section_order.c (onload): Add missing break.
2017-02-15Improved support for --icf=safe when used with -pie.Rahul Chaudhry3-0/+108
gold/ * x86_64.cc (Target_x86_64::do_can_check_for_function_pointers): Return true even when building pie binaries. (Target_x86_64::possible_function_pointer_reloc): Check opcode for R_X86_64_PC32 relocations. (Target_x86_64::local_reloc_may_be_function_pointer): Pass extra arguments to local_reloc_may_be_function_pointer. (Target_x86_64::global_reloc_may_be_function_pointer): Likewise. * gc.h (gc_process_relocs): Add check for STT_FUNC. * testsuite/Makefile.am (icf_safe_pie_test): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/icf_safe_pie_test.sh: New shell script.
2017-01-23Add -e to test scripts where necessary.Rahul Chaudhry3-4/+8
gold/ * testsuite/icf_safe_so_test.sh: Use "set -e". * testsuite/icf_safe_test.sh: Likewise. * testsuite/icf_test.sh: Likewise.
2017-01-11Fix compile errors with GCC 4.2.Cary Coutant1-4/+10
gold/ PR gold/21040 * x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry): Remove unnecessary 'typename' keyword. (Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise. (Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise. (Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise. * testsuite/copy_test_relro_1.cc (p, b, c, q): Add separate extern declarations.
2017-01-11Fix test cases to work for i386.Cary Coutant4-7/+7
gold/ PR gold/21039 * testsuite/script_test_13.sh: Adjust patterns to work for i386. * testsuite/script_test_15a.sh: Likewise. * testsuite/script_test_15b.sh: Likewise. * testsuite/script_test_15c.sh: Likewise.
2017-01-10[GOLD] Fix tests for powerpc64Alan Modra3-10/+45
PowerPC64 defines .TOC. rather than _GLOBAL_OFFSET_TABLE_, and what's more, doesn't define it at all unless referenced. For ELFv1 ABI the symbol isn't normally referenced, so modify the test to accept .TOC. as a variant of _GLOBAL_OFFSET_TABLE_ and 0 or 1 occurrences. copy_test_relro as written doesn't need copy relocs on PowerPC64. PowerPC64 is always PIC. So, modify copy_test_relro to test that the existing vars are in fact read-only directly by deliberately causing a sigsegv, and add another couple of vars that do cause copy relocs even when PIC. * testsuite/ver_test_8.sh: Accept .TOC. in lieu of _GLOBAL_OFFSET_TABLE_. Allow zero count. * testsuite/copy_test_relro_1.cc (c, q): New vars. * testsuite/copy_test_relro.cc: Rewrite to test read-only status of variables directly. Reference new vars in read-only data.
2017-01-02Update year range in copyright notice of all files.Alan Modra321-322/+321
2016-12-27Place copy relocations in .dynbss when target is read-only.Cary Coutant4-6/+108
gold/ PR ld/20995 * copy-relocs.cc (Copy_relocs::make_copy_reloc): Use .dynbss for read-only data when linking with -z relro. * copy-relocs.h (Copy_relocs::dynrelro_): New data member. * testsuite/Makefile.am (copy_test_relro): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/copy_test_relro.cc: New source file. * testsuite/copy_test_relro_1.cc: New source file.
2016-12-22Add -z bndplt support (for Intel MPX).Cary Coutant8-6/+256
gold/ PR gold/17643 * options.h (-z bndplt): New option. * x86_64.cc (Output_data_plt_x86_64::regular_count): New method. (Output_data_plt_x86_64::address_for_global): Move implementation into virtual method. (Output_data_plt_x86_64::address_for_local): Likewise. (Output_data_plt_x86_64::got): New method. (Output_data_plt_x86_64::got_plt): New method. (Output_data_plt_x86_64::got_irelative): New method. (Output_data_plt_x86_64::do_address_for_global): New virtual method. (Output_data_plt_x86_64::do_address_for_local): New virtual method. (class Output_data_plt_x86_64_bnd): New class. (Target_x86_64::do_make_data_plt): Move out of line and specialize for each size (both overloads). (Output_data_plt_x86_64::set_final_data_size): Cosmetic changes. * testsuite/Makefile.am (bnd_plt_1): New test case. (bnd_ifunc_1): New test case. (bnd_ifunc_2): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/bnd_ifunc_1.s: New source file. * testsuite/bnd_ifunc_1.sh: New shell script. * testsuite/bnd_ifunc_2.s: New source file. * testsuite/bnd_ifunc_2.sh: New shell script. * testsuite/bnd_plt_1.s: New source file. * testsuite/bnd_plt_1.sh: New shell script.
2016-12-22Fix placement of forced local symbols in the dynamic symbol table.Cary Coutant3-71/+114
Gold was not placing forced-local symbols (e.g., hidden visibility) at the front of the dynamic symbol table, or including them in the count of local symbols recorded in the .dynsym section's sh_info field. gold/ * layout.cc (Layout::finalize): Track count of forced-local symbols in .dynsym. (Layout::create_symtab_sections): Add local_dynamic_count parameter; use that instead of sh_info value. (Layout::create_dynamic_symtab): Add pforced_local_dynamic_count parameter; pass it to Symtab::set_dynsym_indexes(). Include forced locals in sh_info value. Pass index of first real global to Dynobj::create_gnu_hash_table() and Dynobj::create_elf_hash_table(). * layout.h (Layout::create_symtab_sections): Add local_dynamic_count parameter. (Layout::create_dynamic_symtab): Add pforced_local_dynamic_count parameter. * symtab.cc (Symbol_table::set_dynsym_indexes): Add pforced_local_count parameter. Process forced-local symbols first and return the count. (Symbol_table::finalize): Update comments. * symtab.h (Symbol_table::set_dynsym_indexes): Add pforced_local_count parameter. (Symbol_table::first_dynamic_global_index_): Update comment. (Symbol_table::dynamic_count_): Update comment. * testsuite/Makefile.am (ifuncmod1.sh): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/ifuncmod1.sh: New shell script.
2016-12-22Fix problem where version script causes predefined hidden symbol to be ↵Cary Coutant3-3/+47
defined twice. When creating a predefined hidden symbol like _GLOBAL_OFFSET_TABLE_, gold was incorrectly letting a version script add a version to the symbol, resulting in two copies of the symbol, both STB_LOCAL, but one of which was grouped in the globals part of the symbol table. gold/ * symtab.cc (Symbol_table::define_special_symbol): Add is_forced_local parameter; if set, do not check version script. (Symbol_table::do_define_in_output_data): Pass is_forced_local for STB_LOCAL predefined symbols. (Symbol_table::do_define_in_output_segment): Likewise. (Symbol_table::do_define_in_output_segment): Likewise. (Symbol_table::do_define_as_constant): Likewise. * symtab.h (Symbol_table::define_special_symbol): Add is_forced_local parameter. Adjust all callers. * testsuite/Makefile.am (ver_test_8.sh): New test case. * testsuite/Makefile.in: Regenerate. * ver_test_8.sh: New test script.
2016-12-20Update testsuite Makefile with missing dependencies.Cary Coutant2-66/+66
2016-12-20 Cary Coutant <ccoutant@gmail.com> gold/ * testsuite/Makefile.am: Add missing dependencies on gcctestdir/ld or ../ld-new. * testsuite/Makefile.in: Regenerate.
2016-12-19Fix an internal error in the constructor of Target_arm.Igor Kudrin4-2/+21
gold/ * arm.cc (Target_arm::Target_arm): Move initialization code ... (Target_arm::do_select_as_default_target): ... to here. * testsuite/Makefile.am (arm_target_lazy_init): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/arm_target_lazy_init.s: New source file. * testsuite/arm_target_lazy_init.t: New linker script.
2016-12-19Fix forced allocation of common (-d) during -r links.Cary Coutant3-3/+67
If the .bss section has other data in it besides common allocations, gold was subtracting the wrong section start address from the symbol value. gold/ PR gold/20976 * symtab.cc (Symbol_table::sized_write_globals): Use address of output section, not input section. * testsuite/Makefile.am (pr20976): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/pr20976.c: New source file.
2016-12-12When using linker scripts, place linker-generated sections by the output ↵Cary Coutant5-5/+78
section name. 2016-12-12 Igor Kudrin <ikudrin@accesssoftek.com> Cary Coutant <ccoutant@gmail.com> gold/ PR gold/14676 * script-sections.cc (Output_section_definition::output_section_name): For linker-generated sections, compare with output section name. * testsuite/Makefile.am (script_test_13): New test. * testsuite/Makefile.in: Regenerate. * testsuite/script_test_13.c: New source file. * testsuite/script_test_13.sh: New script. * testsuite/script_test_13.t: New linker script.
2016-12-13[GOLD] Allow for larger alignment in script_test_15Alan Modra3-3/+3
PowerPC64 aligns .got to a 256 byte boundary. This tends to bump the data segment file size. PR gold/16711 * testsuite/script_test_15a.sh: Allows larger p_filesz. * testsuite/script_test_15b.sh: Likewise. * testsuite/script_test_15c.sh: Likewise.
2016-12-13[GOLD] Adjust testcase for PowerPC64Alan Modra1-0/+1
Since the linker created .TOC. symbol is placed at roughly .got+32k, .toc input sections must be placed in or after .got if .toc entries are accessed using 16-bit signed offset relocs. crt1.o contains such a relocation. PR gold/20717 * testsuite/pr20717.t: Add .got output section containing .toc.
2016-12-11Fix earlier ChangeLog entry to give Igor credit, add testcases.Igor Kudrin5-4/+69
2016-12-01 Cary Coutant <ccoutant@gmail.com> Igor Kudrin <ikudrin@accesssoftek.com> PR gold/20717 * script-sections.cc (Script_sections): Set *keep to false when no match. 2016-12-11 Igor Kudrin <ikudrin@accesssoftek.com> PR gold/20717 * testsuite/Makefile.am (pr20717): New test. * testsuite/Makefile.in: Regenerate. * testsuite/pr20717.c: New test source file. * testsuite/pr20717.sh: New test script. * testsuite/pr20717.t: New test linker script.
2016-12-11Fix problems with bss handling in linker scripts.Cary Coutant10-13/+335
PR 16711 noted that gold allocates file space for BSS sections when using a linker script. I've fixed that by rewriting set_section_addresses and set_section_list_addresses to track the file offset separate from the current virtual address, so that BSS sections do not move the file offset. Now, if a series of BSS sections come at the end of a segment, we do not allocate file space; but if a script forces them into the middle of a segment, we will still allocate file space (matching Gnu ld behavior). I've also added a warning when that happens. That exposed another problem where orphan .bss sections were sometimes placed in the middle of a segment. For example, if the script mentions the .got section, but both .data and .bss are orphans, gold would put both .data and .bss in front of .got. I've fixed that by ensuring that orphan BSS sections are always placed after all other allocated sections. It also exposed a problem where the SUBALIGN property is not handled properly. The ld manual clearly states that it should override input section alignment, whether greater or less than the given alignment, but gold would only increase an input section's alignment. Gold would also place the output section based on its original alignment before the SUBALIGN property took effect, leading to a misaligned output section (where the input section was properly aligned in memory, but was not aligned relative to the start of the section), in violation of the ELF/gABI spec. I've fixed that by making sure that the SUBALIGN property overrides the internal alignment of the input sections as well as the external alignment of the output section. This affected the behavior of script_test_2, which was written to expect a misaligned section. The net effect is, I think, improved compatibility with the BFD linker. There are still cases where orphan placement differs, but the differences should be rarer and less important. ALIGN and SUBALIGN behavior is closer, but still not an exact match -- I still found cases where ld would create a misaligned output section, and where gold will properly align it. gold/ PR gold/16711 * output.cc (Output_section::set_final_data_size): Calculate data size based on relative offset rather than file offset. (Output_segment::set_section_addresses): Track file offset separately from address offset. (Output_segment::set_section_list_addresses): Add pfoff parameter. Track file offset separately. Don't move file offset for BSS sections. * output.h (Output_segment::set_section_list_addresses): Add pfoff parameter. * script-sections.cc (Orphan_section_placement): Add PLACE_LAST_ALLOC. (Orphan_section_placement::Orphan_section_placement): Initialize it. (Orphan_section_placement::output_section_init): Track last allocated section. (Orphan_section_placement::find_place): Place BSS after last allocated section. (Output_section_element_input::set_section_addresses): Always override input section alignment when SUBALIGN is specified. (Output_section_definition::set_section_addresses): Override alignment of output section when SUBALIGN is specified. * testsuite/Makefile.am (script_test_15a, script_test_15b) (script_test_15c): New test cases. * testsuite/Makefile.in: Regenerate. * testsuite/script_test_2.cc: Adjust expected layout. * testsuite/script_test_15.c: New source file. * testsuite/script_test_15a.sh: New shell script. * testsuite/script_test_15a.t: New linker script. * testsuite/script_test_15b.sh: New shell script. * testsuite/script_test_15b.t: New linker script. * testsuite/script_test_15c.sh: New shell script. * testsuite/script_test_15c.t: New linker script.
2016-12-06Fix gold/testsuite/file_in_many_sections_test.sh file modeAlan Modra1-0/+0
chmod a+x
2016-12-05Fix problem where absolute local symbols are omitted when output has many ↵Cary Coutant4-9/+96
sections. 2016-12-05 Cary Coutant <ccoutant@gmail.com> Tristan Gingold <gingold@adacore.com> gold/ * object.cc (Sized_relobj_file::do_count_local_symbols): Check is_ordinary before using shndx. * testsuite/Makefile.am (file_in_many_sections_test.sh): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/file_in_many_sections.c: New source file. * testsuite/file_in_many_sections_test.sh: New script.
2016-10-21Fix PR 17704.Gergely Nagy3-107/+162
This fix keeps the section with the highest alignment when folding sections with ICF. PR gold/17704 * icf.cc (match_sections): Add new parameter section_addraligns. Check section alignment and keep the section with the strictest alignment. (find_identical_sections): New local variable section_addraligns. Store each section's alignment. * testsuite/pr17704a_test.s: New file. * testsuite/Makefile.am (pr17704a_test): New test. * testsuite/Makefile.in: Regenerate.
2016-09-26When building target binaries, ensure that the warning flags selected for ↵Vlad Zakharov1-0/+1
the command line match the target compiler. bfd * warning.m4 (AC_EGREP_CPP_FOR_BUILD): Introduce macro to verify CC_FOR_BUILD compiler. (AM_BINUTILS_WARNINGS): Introduce ac_cpp_for_build variable and add CC_FOR_BUILD compiler checks. * Makefile.in: Regenerate. * configure: Likewise. * doc/Makefile.in: Likewise. binutils * Makefile.am: Replace AM_CLFAGS with AM_CFLAGS_FOR_BUILD when building with CC_FOR_BUILD compiler. * Makefile.in: Regenerate. * configure: Likewise. * doc/Makefile.in: Likewise. gas * Makefile.in: Regenerate. * configure: Likewise. * doc/Makefile.in: Likewise. gold * Makefile.in: Regenerate. * configure: Likewise. * testsuite/Makefile.in: Likewise. gprof * Makefile.in: Regenerate. * configure: Likewise. ld * Makefile.in: Regenerate. * configure: Likewise. opcodes * Makefile.in: Regenerate. * configure: Likewise.
2016-09-26[GOLD] regen testsuite/Makefile.inAlan Modra1-5/+5
2016-09-02Handle ARM-specific --target1-abs, --target1-rel and --target2 optionsDoug Kwan9-3/+409
2016-08-17Fix extraneous complaints about missing expected TLS relocation (i386).Cary Coutant2-12/+12
Build the test objects with the in-tree assembler. Also fix some cascading error messages caused by not resetting the skip_call_tls_get_addr_ flag after printing the error. gold/ * i386.cc (Target_i386): Reset skip_call_tls_get_addr_ after printing error message. * testsuite/Makefile.am (pr20216a): Add missing dependencies. (pr20308a): Add -Bgcctestdir/ to compile rules. * testsuite/Makefile.in: Regenerate.
2016-08-10Fix extraneous complaints about missing expected TLS relocation.Cary Coutant2-4/+4
With some versions of gas, the call to tls_get_addr uses a GOTPCREL relocation instead of a GOTPCRELX relocation. We should allow for that when skip_call_tls_get_addr_ is true. We should also build the test objects with the in-tree assembler. This patch also fixes some cascading error messages caused by not resetting the skip_call_tls_get_addr_ flag after printing the error. gold/ PR gold/20216 * x86_64.cc (Target_x86_64::Relocate::relocate): Add check for R_X86_64_GOTPCREL. Reset skip_call_tls_get_addr_ after printing error message. * testsuite/Makefile.am (pr20216_gd.o): Add -Bgcctestdir/. (pr20216_ld.o): Likewise. * testsuite/Makefile.in: Regenerate.
2016-07-27Fix aarch64_relocs.sh file modeAlan Modra1-0/+0
2016-07-26[Gold, aarch64] Implement some AArch64 relocs.Han Shen5-3/+195
This CL implemented the following relocs for AArch64 target. - R_AARCH64_MOVW_UABS_G* - R_AARCH64_MOVW_SABS_G* relocations gold/ChangeLog 2016-07-26 Igor Kudrin <ikudrin@accesssoftek.com> * aarch64-reloc-property.cc (Rvalue_bit_select_impl): New class. (rvalue_bit_select): Use Rvalue_bit_select_impl. * aarch64-reloc.def (MOVW_UABS_G0, MOVW_UABS_G0_NC, MOVW_UABS_G1, MOVW_UABS_G1_NC, MOVW_UABS_G2, MOVW_UABS_G2_NC, MOVW_UABS_G3, MOVW_SABS_G0, MOVW_SABS_G1, MOVW_SABS_G2): New relocations. * aarch64.cc (Target_aarch64::Scan::local): Add cases for new MOVW_UABS_* and MOVW_SABS_* relocations. (Target_aarch64::Scan::global): Likewise. (Target_aarch64::Relocate::relocate): Add cases and handlings for new MOVW_UABS_* and MOVW_SABS_* relocations. * testsuite/Makefile.am (aarch64_relocs): New test. * testsuite/Makefile.in: Regenerate. * testsuite/aarch64_globals.s: New test source file. * testsuite/aarch64_relocs.s: Likewise. * testsuite/aarch64_relocs.sh: New test script.
2016-06-29Fix gold testsuite failure with GCC 6.Cary Coutant1-1/+0
With GCC 6 when not using -static-libstdc++, the operator delete(void*) function is defined in the shared C++ support library, rather than in the main program. The test script is too aggressive in checking for this symbol's presence among the exported symbols. This patch removes the check for that symbol. gold/ PR gold/20310 * testsuite/dynamic_list.sh: Remove check for _ZdlPv.
2016-06-29Update "make clean" in gold/testsuite.Cary Coutant2-2/+2
gold/ * testsuite/Makefile.am (MOSTLYCLEANFILES): Add eh_test_2. * testsuite/Makefile.in: Regenerate.
2016-06-30[GOLD] Pass -Wl,-z to gcc, not plain -zAlan Modra2-4/+4
* testsuite/Makefile.am (memory_test, memory_test_2): Pass -Wl,-z to gcc, not plain -z. * testsuite/Makefile.in: Regenerate.
2016-06-29gold: Support 386 TLS code sequences without PLTH.J. Lu6-108/+562
There are extensions to 386 psABI: https://groups.google.com/forum/#!topic/ia32-abi/awsRSvJOJfs to call tls_get_addr via GOT: call *___tls_get_addr@GOT(%reg) where EBX register isn't required as GOT base. Since direct call is 4-byte long and indirect call, is 5-byte long, the extra one byte must be handled properly. For general dynamic model, 7-byte lea instruction before call instruction is replaced by 6-byte one to make room for indirect call. For local dynamic model, we simply use 5-byte indirect call. TLS linker optimization is updated to recognize new instruction patterns. For local dynamic model to local exec model transition, we generate a 6-byte lea instruction as nop, instead of a 1-byte nop plus a 4-byte lea instruction. PR gold/20308 * i386.cc (Target_i386::Relocate::relocate): Allow R_386_GOT32X relocation against ___tls_get_addr. (Target_i386::Relocate::tls_gd_to_ie): Support indirect call to __tls_get_addr. (Target_i386::Relocate::tls_gd_to_le): Likewise. (Target_i386::Relocate::tls_ld_to_le): Likewise. * testsuite/Makefile.am (check_PROGRAMS): Add pr20308a_test, pr20308b_test, pr20308c_test, pr20308d_test, pr20308e_test. (pr20308a_test_SOURCES): New. (pr20308a_test_DEPENDENCIES): Likewise. (pr20308a_test_CFLAGS): Likewise. (pr20308a_test_LDFLAGS): Likewise. (pr20308a_test_LDADD): Likewise. (pr20308b_test_SOURCES): Likewise. (pr20308b_test_DEPENDENCIES): Likewise. (pr20308b_test_CFLAGS): Likewise. (pr20308b_test_LDFLAGS): Likewise. (pr20308b_test_LDADD): Likewise. (pr20308c_test_SOURCES): Likewise. (pr20308c_test_DEPENDENCIES): Likewise. (pr20308c_test_CFLAGS): Likewise. (pr20308c_test_LDFLAGS): Likewise. (pr20308c_test_LDADD): Likewise. (pr20308d_test_SOURCES): Likewise. (pr20308d_test_DEPENDENCIES): Likewise. (pr20308d_test_CFLAGS): Likewise. (pr20308d_test_LDFLAGS): Likewise. (pr20308d_test_LDADD): Likewise. (pr20308e_test_SOURCES): Likewise. (pr20308e_test_DEPENDENCIES): Likewise. (pr20308e_test_CFLAGS): Likewise. (pr20308e_test_LDFLAGS): Likewise. (pr20308e_test_LDADD): Likewise. (pr20308a.so): Likewise. (pr20308b.so): Likewise. (pr20308_gd.o): Likewise. (pr20308_ld.o): Likewise. (MOSTLYCLEANFILES): Add pr20308a.so pr20308b.so. * testsuite/Makefile.in: Regenerated. * testsuite/pr20308_def.c: New file. * testsuite/pr20308_gd.S: Likewise. * testsuite/pr20308_ld.S: Likewise. * testsuite/pr20308_main.c: Likewise.
2016-06-29gold: Support x86-64 TLS code sequences without PLTH.J. Lu6-111/+528
There are extensions to x86-64 psABI: https://groups.google.com/forum/#!topic/x86-64-abi/de5_KnLHxtI to call tls_get_addr via GOT: call *__tls_get_addr@GOTPCREL(%rip) Since direct call is 4-byte long and indirect call, is 5-byte long, the extra one byte must be handled properly. For general dynamic model, one 0x66 prefix before call instruction is removed to make room for indirect call. For local dynamic model, we simply use 5-byte indirect call. TLS linker optimization is updated to recognize new instruction patterns. For local dynamic model to local exec model transition, we generate 4 0x66 prefixes, instead of 3, before mov instruction in 64-bit and generate a 5-byte nop, instead of 4-byte, before mov instruction in 32-bit. PR gold/20216 * configure.ac (DEFAULT_TARGET_X86_64_OR_X32): New AM_CONDITIONAL. * configure: Regenerated. * x86_64.cc (Target_x86_64<size>::Relocate::relocate): Allow R_X86_64_GOTPCRELX relocation against __tls_get_addr. (Target_x86_64<size>::Relocate::tls_gd_to_ie): Support indirect call to __tls_get_addr. (Target_x86_64<size>::Relocate::tls_gd_to_le): Likewise. (Target_x86_64<size>::Relocate::tls_ld_to_le): Likewise. * testsuite/Makefile.am (check_PROGRAMS): Add pr20216a_test, pr20216b_test, pr20216c_test, pr20216d_test, pr20216e_test. (pr20216a_test_SOURCES): New. (pr20216a_test_DEPENDENCIES): Likewise. (pr20216a_test_CFLAGS): Likewise. (pr20216a_test_LDFLAGS): Likewise. (pr20216a_test_LDADD): Likewise. (pr20216b_test_SOURCES): Likewise. (pr20216b_test_DEPENDENCIES): Likewise. (pr20216b_test_CFLAGS): Likewise. (pr20216b_test_LDFLAGS): Likewise. (pr20216b_test_LDADD): Likewise. (pr20216c_test_SOURCES): Likewise. (pr20216c_test_DEPENDENCIES): Likewise. (pr20216c_test_CFLAGS): Likewise. (pr20216c_test_LDFLAGS): Likewise. (pr20216c_test_LDADD): Likewise. (pr20216d_test_SOURCES): Likewise. (pr20216d_test_DEPENDENCIES): Likewise. (pr20216d_test_CFLAGS): Likewise. (pr20216d_test_LDFLAGS): Likewise. (pr20216d_test_LDADD): Likewise. (pr20216e_test_SOURCES): Likewise. (pr20216e_test_DEPENDENCIES): Likewise. (pr20216e_test_CFLAGS): Likewise. (pr20216e_test_LDFLAGS): Likewise. (pr20216e_test_LDADD): Likewise. (pr20216a.so): Likewise. (pr20216b.so): Likewise. (pr20216_gd.o): Likewise. (pr20216_ld.o): Likewise. (MOSTLYCLEANFILES): Add pr20216a.so pr20216b.so. * testsuite/Makefile.in: Regenerated. * testsuite/pr20216_def.c: New file. * testsuite/pr20216_gd.S: Likewise. * testsuite/pr20216_ld.S: Likewise. * testsuite/pr20216_main.c: Likewise.
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