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* Fix bad offset calculation for R_AARCH64_TLSDESC_* relocs.Igor Kudrin2017-08-285-3/+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.
* Fix misplacement of a relaxed section on AArch64.Igor Kudrin2017-05-124-3/+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.
* [GOLD] testsuite/plugin_section_order.c fixAlan Modra2017-04-271-0/+1
| | | | * testsuite/plugin_section_order.c (onload): Add missing break.
* Improved support for --icf=safe when used with -pie.Rahul Chaudhry2017-02-153-0/+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.
* Add -e to test scripts where necessary.Rahul Chaudhry2017-01-233-4/+8
| | | | | | | gold/ * testsuite/icf_safe_so_test.sh: Use "set -e". * testsuite/icf_safe_test.sh: Likewise. * testsuite/icf_test.sh: Likewise.
* Fix compile errors with GCC 4.2.Cary Coutant2017-01-111-4/+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.
* Fix test cases to work for i386.Cary Coutant2017-01-114-7/+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.
* [GOLD] Fix tests for powerpc64Alan Modra2017-01-103-10/+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.
* Update year range in copyright notice of all files.Alan Modra2017-01-02321-322/+321
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* Place copy relocations in .dynbss when target is read-only.Cary Coutant2016-12-274-6/+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.
* Add -z bndplt support (for Intel MPX).Cary Coutant2016-12-228-6/+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.
* Fix placement of forced local symbols in the dynamic symbol table.Cary Coutant2016-12-223-71/+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.
* Fix problem where version script causes predefined hidden symbol to be ↵Cary Coutant2016-12-223-3/+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.
* Update testsuite Makefile with missing dependencies.Cary Coutant2016-12-202-66/+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.
* Fix an internal error in the constructor of Target_arm.Igor Kudrin2016-12-194-2/+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.
* Fix forced allocation of common (-d) during -r links.Cary Coutant2016-12-193-3/+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.
* When using linker scripts, place linker-generated sections by the output ↵Cary Coutant2016-12-125-5/+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.
* [GOLD] Allow for larger alignment in script_test_15Alan Modra2016-12-133-3/+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.
* [GOLD] Adjust testcase for PowerPC64Alan Modra2016-12-131-0/+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.
* Fix earlier ChangeLog entry to give Igor credit, add testcases.Igor Kudrin2016-12-115-4/+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.
* Fix problems with bss handling in linker scripts.Cary Coutant2016-12-1110-13/+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.
* Fix gold/testsuite/file_in_many_sections_test.sh file modeAlan Modra2016-12-061-0/+0
| | | | chmod a+x
* Fix problem where absolute local symbols are omitted when output has many ↵Cary Coutant2016-12-054-9/+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.
* Fix PR 17704.Gergely Nagy2016-10-213-107/+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.
* When building target binaries, ensure that the warning flags selected for ↵Vlad Zakharov2016-09-261-0/+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.
* [GOLD] regen testsuite/Makefile.inAlan Modra2016-09-261-5/+5
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* Handle ARM-specific --target1-abs, --target1-rel and --target2 optionsDoug Kwan2016-09-029-3/+409
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* Fix extraneous complaints about missing expected TLS relocation (i386).Cary Coutant2016-08-172-12/+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.
* Fix extraneous complaints about missing expected TLS relocation.Cary Coutant2016-08-102-4/+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.
* Fix aarch64_relocs.sh file modeAlan Modra2016-07-271-0/+0
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* [Gold, aarch64] Implement some AArch64 relocs.Han Shen2016-07-265-3/+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.
* Fix gold testsuite failure with GCC 6.Cary Coutant2016-06-291-1/+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.
* Update "make clean" in gold/testsuite.Cary Coutant2016-06-292-2/+2
| | | | | | gold/ * testsuite/Makefile.am (MOSTLYCLEANFILES): Add eh_test_2. * testsuite/Makefile.in: Regenerate.
* [GOLD] Pass -Wl,-z to gcc, not plain -zAlan Modra2016-06-302-4/+4
| | | | | | * testsuite/Makefile.am (memory_test, memory_test_2): Pass -Wl,-z to gcc, not plain -z. * testsuite/Makefile.in: Regenerate.
* gold: Support 386 TLS code sequences without PLTH.J. Lu2016-06-296-108/+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.
* gold: Support x86-64 TLS code sequences without PLTH.J. Lu2016-06-296-111/+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.
* [GOLD] Modify script_test_12Alan Modra2016-06-292-4/+2
| | | | | | | Changes necessary to make this test pass on powerpc64. * script_test_12.t: Delete .plt, specify 64k page size. * script_test_12i.t: Likewise.
* [GOLD] alignment testAlan Modra2016-06-291-12/+12
| | | | | | | | | | PowerPC gcc aligns char arrays to a word which results in the test failing since it expects a char alignment. As the test already uses gcc attributes to assign variables to sections, we may as well use an attribute to align too. * testsuite/plugin_layout_with_alignment.c: Explicitly align all variables.
* [GOLD] Disable copy_test_protected on powerpcAlan Modra2016-06-292-111/+113
| | | | | | | A target like powerpc64 that is PIC by default doesn't need copy relocs. * testsuite/Makefile.am (copy_test_protected): Disable for powerpc. * testsuite/Makefile.in: Regenerate.
* Fix execute permission on gold/testsuite/script_test_14.sh.Cary Coutant2016-06-281-0/+0
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* Implement the R_AARCH64_NONE relocation.Igor Kudrin2016-06-284-9/+110
| | | | | | | | | | | | | | | According to "ELF for the ARM(r) 64-bit Architecture (AArch64)", this relocation can be used "to prevent removal of sections that might otherwise appear to be unused." gold/ * aarch64-reloc.def (NONE): New relocation. * aarch64.cc (Target_aarch64::Scan::local): Handle R_AARCH64_NONE. (Target_aarch64::Scan::global): Likewise. * testsuite/Makefile.am (aarch64_reloc_none): New test. * testsuite/Makefile.in: Regenerate. * testsuite/aarch64_reloc_none.s: New test source file. * testsuite/aarch64_reloc_none.sh: New test script.
* Convert indirect calls to direct when possible.Sriraman Tallam2016-06-285-0/+91
| | | | | | | | | | | | | | | | | | | | Please see patch discussion: https://www.sourceware.org/ml/binutils/2016-05/msg00322.html 2016-06-28 Sriraman Tallam <tmsriram@google.com> * x86_64.cc (Lazy_view): New class. (can_convert_mov_to_lea): Templatize function. Make the function check for appropriate relocation types and use the view parameter to get section contents. (can_convert_callq_to_direct): New function. (Target_x86_64<size>::Scan::global): Refactor. (Target_x86_64<size>::Relocate::relocate): Refactor. Change any indirect call via GOT that can be converted. * testsuite/Makefile.am (x86_64_indirect_call_to_direct.sh): New test. * testsuite/Makefile.in: Regenerate. * testsuite/x86_64_indirect_call_to_direct1.s: New file. * testsuite/x86_64_indirect_jump_to_direct1.s: New file.
* Implement SORT_BY_INIT_PRIORITY.Igor Kudrin2016-06-285-4/+201
| | | | | | | | | | | | | | | | | | | | 2016-06-28 Igor Kudrin <ikudrin@accesssoftek.com> gold/ PR gold/18098 * script-c.h (Sort_wildcard): Add SORT_WILDCARD_BY_INIT_PRIORITY. * script-sections.cc (Input_section_sorter::get_init_priority): New method. (Input_section_sorter::operator()): Handle SORT_WILDCARD_BY_INIT_PRIORITY. (Output_section_element_input::print): Likewise. * script.cc (script_keyword_parsecodes): Add entry SORT_BY_INIT_PRIORITY. * yyscript.y (SORT_BY_INIT_PRIORITY): New token. (wildcard_section): Handle SORT_BY_INIT_PRIORITY. * testsuite/Makefile.am (script_test_14): New test. * testsuite/Makefile.in: Regenerate. * testsuite/script_test_14.s: New test source file. * testsuite/script_test_14.sh: New test script. * testsuite/script_test_14.t: New test linker script.
* Fix bug with grouping sections.Cary Coutant2016-06-234-0/+4
| | | | | | | | | | | | | | | | | | | The fix for PR 15370 did not correctly check all patterns in a group, but instead threw all unassigned sections into the group. This patch fixes that. 2016-06-23 Cary Coutant <ccoutant@gmail.com> Igor Kudrin <ikudrin@accesssoftek.com> gold/ PR gold/15370 * script-sections.cc (Output_section_element_input::set_section_addresses): Keep bin_count separate from input_pattern_count. * testsuite/script_test_12.t: Add another section .x4. * testsuite/script_test_12i.t: Likewise. * testsuite/script_test_12a.c: Likewise. * testsuite/script_test_12b.c: Likewise.
* Add .got.plt to testsuite/script_test_2.tH.J. Lu2016-06-131-0/+1
| | | | | | | | The .got.plt section must be placed right after the .got section. Otherwise, GOT offset will be wrong. PR gold/20246 * testsuite/script_test_2.t: Add .got.plt after .got.
* Don't allow COPY relocations for protected symbols.Cary Coutant2016-05-197-90/+202
| | | | | | | | | | | | | | | | | | | | | | | gold/ PR gold/19823 * copy-relocs.cc (Copy_relocs::make_copy_reloc): Add object parameter; check for protected symbol. * copy-relocs.h (Copy_relocs::make_copy_reloc): Add object parameter. * mips.cc (Mips_copy_relocs): Adjust call to make_copy_reloc. * symtab.cc (Symbol::init_fields): Initialize is_protected_. (Symbol_table::add_from_dynobj): Mark protected symbols. * symtab.h (Symbol::is_protected): New method. (Symbol::set_is_protected): New method. (Symbol::is_protected_): New data member. * testsuite/Makefile.am (copy_test_protected): New test. * testsuite/Makefile.in: Regenerate. * testsuite/copy_test.cc (main): Add legal reference to protected symbol. * testsuite/copy_test_v1.cc (main): Likewise. * testsuite/copy_test_2.cc (ip): Add protected symbol. * testsuite/copy_test_protected.cc: New test source file. * testsuite/copy_test_protected.sh: New test script.
* Regenerate Makefile.in/aclocal.m4 automake 1.11.6H.J. Lu2016-04-151-387/+432
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bfd/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. binutils/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. gas/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. gold/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * testsuite/Makefile.in: Likewise. gprof/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. ld/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. opcodes/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise.
* Fix problem where gold fails to issue an undefined symbol error during LTO.Cary Coutant2016-03-214-0/+124
| | | | | | | | | | | | | | | | | | | | | | | | During LTO, if (1) an IR file contains a COMDAT group that is kept, (2) a later non-claimed file contains the same group, which we discard, and (3) the plugin fails to provide a definition of the symbols in that COMDAT group, gold silently resolves any references to those symbols to 0. This patch adds a check for a placeholder symbol when deciding whether to issue an undefined symbol error. It also adds an extra note after any undefined placeholder symbol error that explains that a definition was expected from the plugin. gold/ PR gold/19842 * errors.cc (Errors::undefined_symbol): Add info message when symbol should have been provided by a plugin. * target-reloc.h (issue_undefined_symbol_error): Check for placeholder symbols defined in discarded sections. * testsuite/Makefile.am (plugin_test_9b): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/plugin_test_9b_elf.cc: New test source file. * testsuite/plugin_test_9b_ir.cc: New test source file.
* Fix problem where gold cannot build .eh_frame_hdr from ld -r output.Cary Coutant2016-03-205-2/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running ld -r on objects that have comdat groups, when gold deduplicates a function in a comdat group, it removes the relocations from the EH information that referred to the dropped copy of the function. When running a final link using the result of the -r link, the missing relocation cause it to fail to recognize the FDE for the dropped function. This patch improves gold's FDE scanning to take into account the possibility that an FDE corresponds to a dropped function, and drops that FDE as well. Gnu ld, on the other hand, leaves the relocations in the ld -r output, but makes them R_NONE with an r_sym field of 0. This was sufficient to let both linkers recognize the FDE properly. With this fix, if you do an ld -r with gold, then do the final link with Gnu ld, the .eh_frame_hdr section will not be generated. To make it work with Gnu ld, we would have to leave the R_NONE relocations in, but I think it's better to drop the relocations entirely. I'd hope that if you're doing a -r link with gold, you'll also do the final link with gold. gold/ PR gold/19002 * ehframe.cc (Eh_frame::read_fde): Check for dropped functions. * testsuite/Makefile.am (eh_test_2): New test. * testsuite/Makefile.in: Regenerate. * testsuite/eh_test_2.sh: New test script. * testsuite/eh_test_a.cc (bar): Make it comdat. * testsuite/eh_test_b.cc (bar): Add a duplicate copy.
* Workaround a C++ bug in GCC 4.2 in gold testH.J. Lu2016-03-093-7/+7
| | | | | | | | | | | | | | | | | | | | | | G++ in GCC 4.2 silently ignores --- __attribute__ ((section(".rodata.v1_a2"))) const short rodata_item1 = 101; --- which leads to plugin_layout_with_alignment test failure with Expected 12 sections, found 8 sections since 4 .rodata sections are missing. As a workaround, this patch changes plugin_layout_with_alignment test from C++ to C. * testsuite/plugin_layout_with_alignment.cc: Renamed to .. * testsuite/plugin_layout_with_alignment.c: This. * testsuite/Makefile.am (plugin_layout_with_alignment.o): Updated. (plugin_layout_with_alignment): Likewise. * testsuite/Makefile.in: Regenerated.
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