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2015-10-16Don't ignore "-m emulation" command line optionH.J. Lu3-1/+18
Gold shouldn't ignore "-m emulation" command line option, which may lead to incorrect output. PR gold/19119 * options.h (General_options): Remove "obsolete" from -m. * parameters.cc (set_parameters_target): Check if input target is compatible with output emulation set by "-m emulation".
2015-10-13Add EM_IAMCU support to goldH.J. Lu2-0/+64
elfcpp/ PR gold/19118 * elfcpp.h (EM): Add EM_IAMCU. gold/ PR gold/19118 * i386.cc (Target_iamcu): New class. (Target_selector_iamcu): Likewise. (Target_iamcu::iamcu_info): New variable. (target_selector_iamcu): Likewise.
2015-10-07gold: fix ABI pagesize for aarch64Andreas Schwab2-4/+8
* aarch64.cc (aarch64_info): Set abi_pagesize to 64K.
2015-10-06Fix bug when applying R_SPARC_GOTDATA_OP* relocations to local symbols.Cary Coutant2-9/+16
When applying a GOTDATA_OP* relocation to a local symbol, the addend is being applied after getting the value of the symbol. When the relocation refers to a merge section, however, the addend must be provided when computing the symbol value, since the contents of the section may have been rearranged. gold/ PR gold/18855 * sparc.cc (Sparc_relocate_functions::gdop_hix22): Remove addend parameter. (Sparc_relocate_functions::gdop_lox10): Likewise. (Target_sparc::Relocate::relocate): Use addend when computing symbol value for R_SPARC_GOTDATA_OP*.
2015-09-07Fix internal error caused by IFUNC patch.Cary Coutant3-9/+16
The previous commit to fix PR gold/18886 converted STT_IFUNC to STT_FUNC when resolving to a symbol defined in a shared library. This leads to an internal error if the shared library symbol is seen first, as we do not convert the symbol at all. We need to override the STT_IFUNC in add_from_dynobj() instead of in override_base(). gold/ PR gold/18930 PR gold/18886 * resolve.cc (Symbol::override_base): Don't convert IFUNC symbols here. * symtab.cc (Symbol_table::add_from_dynobj): Convert them here instead.
2015-09-02Turn IFUNC symbols from shared libraries into normal FUNC symbolsH.J. Lu3-5/+16
Turn IFUNC symbols from shared libraries into normal FUNC symbols when we are resolving symbol references, instead of when we are writing out the symbol table. PR gold/18886 * resolve.cc (Symbol::override_base): Turn IFUNC symbols from shared libraries into normal FUNC symbols. * symtab.cc (Symbol_table::sized_write_symbol): Assert IFUNC symbols aren't from shared libraries.
2015-09-02[GOLD] ppc64 out-of-line register save/restore functionsAlan Modra2-17/+88
Gold version of a4b6fadd. Don't emit long branch or plt branch stubs to save/restore functions. Copy them instead. PR 18878 * powerpc.cc (Target_powerpc): Add savres_section_ and accessor. (Target_powerpc::Branch_info::make_stub): Determine whether long branch stub is for save/restore function. (Branch_stub_ent): Add save_res_, and extra parm to constructor. (Stub_table): Add need_save_res_. (Stub_table:clear_stubs): Clear need_save_res_. (Stub_table:set_address_and_size): Add save/restore section size. (Stub_table::add_long_branch_entry): Add save_res param. Set need_save_res_, but don't add space for save/restore stubs. (Stub_table::find_long_branch_entry): Return offset to local copy of save/restore func. (Stub_table::do_write): Don't output save/restore stubs. Instead copy the save/restore functions. (Output_data_save_res:contents): New accessor. (Target_powerpc::define_save_restore_funcs): Set savres_section_.
2015-08-26Fix problem where script specified both address and region for a section.Cary Coutant3-19/+54
If a script specifies both address and region for an output section declaration, gold ignores the region specification. This can lead to bogus "moves backward" errors. This patch fixes gold so that if a section specifies both address and region, it will place the section at the specified address in the region, and update the location counter within the region. gold/ PR gold/18847 * script-sections.cc (Memory_region::set_address): New method. (Script_sections::find_memory_region): Add explicit_only parameter. (Output_section_definition::set_section_addresses): Handle case where script specifies both address and vma region. * script-sections.h (Script_sections::find_memory_region): Add explicit_only parameter.
2015-08-25Fix --no-as-needed when shared library is listed twice on the command line.Cary Coutant3-3/+25
When a shared library is listed twice on the command line, the linker ignores the second mention. If the first mention is in the scope of an --as-needed option, and the second one is under the scope of a --no-as-needed option, the --no-as-needed should take effect, but doesn't. This patch keeps track of the objects we've already seen, and updates the --as-needed flag so that if a shared object is ever seen with --no-as-needed, it will be marked as such. gold/ PR gold/18859 * object.cc (Input_objects::add_object): Store objects in a map, indexed by soname; update as-needed flag when necessary. * object.h (Object::clear_as_needed): New method. (Input_objects::so_names_): Change from set to map.
2015-08-25Fix internal error in gold when script uses section address in assignment.Cary Coutant4-14/+53
When processing assignment expressions in a linker script, gold processes absolute assignments early, but when one of those assignments involves the address of a section that has not yet been finalized, we get an internal error in address. This patch fixes the problem by gracefully returning from expression evaluation even if the address is not yet valid, and deferring the assignment in such a case. gold/ PR gold/14746 * expression.cc (Expression::Expression_eval_info): Add is_valid_pointer field. (Expression::eval_maybe_dot): Add is_valid_pointer parameter. Adjust all callers. (Addr_expression::value_from_output_section): Check whether address is valid. * script.cc (Symbol_assignment::set_if_absolute): Defer assignment if evaluation failed due to address that is not yet valid. * script.h: (Expression::eval_maybe_dot): Add is_valid_pointer parameter.
2015-08-25Fix regression introduced by fix for PR 18703.Cary Coutant2-15/+23
When a user object overrides a versioned definition in a shared object, it's possible to trigger an internal error because the versioned definition we saw didn't override the unversioned definition. This was introduced by the fix for PR 18703. This patch fixes the problem by reordering the tests so that we do not check ret->is_default() until we're confident that the symbol is in fact versioned. gold/ PR gold/18866 PR gold/18703 * symtab.cc (Symbol_table): Reorder conditions to avoid internal error.
2015-08-20gold --emit-relocsAlan Modra3-4/+15
A symbol value in an ELF final linked binary is absolute, in contrast to a relocatable object file where the value is section relative. For --emit-relocs it is therefore incorrect to use the value of a section symbol as the addend when adjusting relocs against input section symbols to output section symbols. PR gold/18846 * target-reloc.h (relocate_relocs <RELOC_ADJUST_FOR_SECTION_RELA>): Subtract os->address() from addend. * powerpc.cc (relocate_relocs): Likewise.
2015-08-18Fix symbol versioning problems in PR 18703.Cary Coutant11-21/+171
If a symbol is defined with ".symver foo,foo@VER", the assembler creates two symbols in the object: one unversioned, and one with the (non-default) version "VER". If foo is listed in a version script, gold would then make the first of those symbols the default version, and would ignore the second symbol as a duplicate, without making it a non-default version. While this is arguably reasonable behavior, it doesn't match Gnu ld behavior, so this patch fixes that by allowing the second definition to override the first by resetting the "default version" indication. Several test cases from the Gnu ld testsuite also exposed another related problem, where a symbol defined with ".symver foo,foo@", placed into a shared library, is not handled properly by gold. This patch also fixes that case, binding the symbol to the base version. gold/ PR gold/18703 * dynobj.cc (Versions::record_version): Handle symbol defined with base version. (Versions::symbol_section_contents): Likewise. * symtab.h (Symbol::set_is_not_default): New class method. (Symbol_table::resolve): Add is_default_version parameter. (Symbol_table::should_override): Likewise. * resolve.cc (Symbol_table::resolve): Add is_default_version parameter, and pass to should_override. Adjust all callers and explicit instantiations. (Symbol_table::should_override): Add is_default_value parameter; allow default version in a dynamic object to override existing definition from same object. * symtab.cc (Symbol_table::add_from_object): Handle case where same symbol is defined as unversioned and non-default version in the same object. * testsuite/Makefile.am (ver_test_13): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/ver_test_4.cc: Add test for symbol with base version. * testsuite/ver_test_4.sh: Likewise. * testsuite/ver_test_13.c: New source file. * testsuite/ver_test_13.script: New version script. * testsuite/ver_test_13.sh: New test case.
2015-08-12[MIPS] Map 'move' to 'or'.Simon Dardis2-16/+26
The MIPS assembly idiom 'move' now maps to the 'or' machine instruction. This change affects microMIPS, MIPS32, MIPS64. 2015-08-12 Simon Dardis <simon.dardis@imgtec.com> opcodes/ * micromips-opc.c (micromips_opcodes): Re-order table so that move based on 'or' is first. * mips-opc.c (mips_builtin_opcodes): Ditto. bfd/ * elfxx-mips.c (STUB_MOVE): Change to use 'or' only. (mips_o32_exec_plt0_entry, mips_n32_exec_plt0_entry, mips_n64_exec_plt0_entry, micromips_insn32_o32_exec_plt0_entry): Update to use 'or' instead of 'addu/daddu'. (_bfd_mips_elf_finish_dynamic_symbol): Update usage of STUB_MOVE. (move_insns_32): Reorder table. gas/ * config/tc-mips.c (move_register): Change to use 'or' only. (s_cpload, s_cpsetup, s_cprestore, s_cpreturn): Update to use or for move. gas/testsuite/ * gas/mips/elf-rel23.d: Update test. * gas/mips/elf-rel23.d: Ditto. * gas/mips/elf-rel23a.d: Ditto. * gas/mips/elf-rel23b.d: Ditto. * gas/mips/elf_e_flags1.d: Ditto. * gas/mips/elf_e_flags2.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/loc-swap-dis.d: Ditto. * gas/mips/micromips-insn32.d: Ditto. * gas/mips/micromips-noinsn32.d: Ditto. * gas/mips/micromips-trap.d: Ditto. * gas/mips/micromips.d: Ditto. * gas/mips/mips-abi32-pic.d: Ditto. * gas/mips/mips-abi32.d: Ditto. * gas/mips/mips-gp32-fp32-pic.d: Ditto. * gas/mips/mips-gp32-fp32.d: Ditto. * gas/mips/mips-gp32-fp64-pic.d: Ditto. * gas/mips/mips-gp32-fp64.d: Ditto. * gas/mips/mips-gp64-fp32-pic.d: Ditto. * gas/mips/mips-gp64-fp32.d: Ditto. * gas/mips/mips-gp64-fp64-pic.d: Ditto. * gas/mips/mips-gp64-fp64.d: Ditto. * gas/mips/mipsr6@loc-swap-dis.d: Ditto. * gas/mips/tls-o32.d: Ditto. * gas/mips/uld2-eb.d: Ditto. * gas/mips/uld2-el.d: Ditto. * gas/mips/ulw2-eb-ilocks.d: Ditto. * gas/mips/ulw2-eb.d: Ditto. * gas/mips/ulw2-el-ilocks.d: Ditto. * gas/mips/ulw2-el.d: Ditto. * gas/mips/move.d: New test. * gas/mips/move.s: Ditto. * gas/mips/micromips32-move.d: Ditto. * gas/mips/micromips32-move.s: Ditto. * gas/mips/mips.exp: Run the new tests. gold/ * mips.cc (plt0_entry_o32, plt0_entry_n32, plt0_entry_n64, lazy_stub_normal_1, lazy_stub_normal_1_n64, lazy_stub_normal_2, lazy_stub_normal_2_n64, lazy_stub_big, lazy_stub_big_n64, lazy_stub_micromips32_normal_1_n64, lazy_stub_micromips32_normal_2_n64, lazy_stub_micromips32_big, lazy_stub_micromips32_big_n64): Update to use 'or' for move instead of 'addu/daddu'. ld/testsuite/ * ld-mips-elf/compressed-plt-1-n32-mips16.od: Update test. * ld-mips-elf/compressed-plt-1-n32-umips.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-got.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-only.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-word.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-se.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips-got.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips-word.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips.od: Ditto. * ld-mips-elf/jalx-2.dd: Ditto. * ld-mips-elf/mips16-pic-3.dd: Ditto. * ld-mips-elf/pic-and-nonpic-3a.dd: Ditto. * ld-mips-elf/pic-and-nonpic-3b.dd: Ditto. * ld-mips-elf/pic-and-nonpic-5b.dd: Ditto. * ld-mips-elf/pic-and-nonpic-6-n32.dd: Ditto. * ld-mips-elf/pic-and-nonpic-6-o32.dd: Ditto. * ld-mips-elf/stub-dynsym-1-10000.d: Ditto. * ld-mips-elf/stub-dynsym-1-2fe80.d: Ditto. * ld-mips-elf/stub-dynsym-1-7fff.d: Ditto. * ld-mips-elf/stub-dynsym-1-8000.d: Ditto. * ld-mips-elf/stub-dynsym-1-fff0.d: Ditto. * ld-mips-elf/tlsbin-o32.d: Ditto. * ld-mips-elf/tlsdyn-o32-1.d: Ditto. * ld-mips-elf/tlsdyn-o32-2.d: Ditto. * ld-mips-elf/tlsdyn-o32-3.d: Ditto. * ld-mips-elf/tlsdyn-o32.d: Ditto. * ld-mips-elf/tlslib-o32.d: Ditto.
2015-07-27Regenerate configure filesH.J. Lu2-2/+6
bfd/ * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gold/ * configure: Regenerated. gprof/ * configure: Regenerated. ld/ * configure: Regenerated. opcodes/ * configure: Regenerated.
2015-07-26Make arm_unaligned_reloc test less sensitive to disassembler output format.Doug Kwan3-14/+22
2015-07-24Remove leading/trailing white spaces in ChangeLogH.J. Lu1-56/+56
2015-07-232015-07-23 Ian Coolidge <icoolidge@google.com>Han Shen3-3/+15
Plumb --pic-veneer option for gold. gold/ChangeLog: * arm.cc (Reloc_stub::stub_type_for_reloc): Plumb to stub generation. * options.h (General_options): Add --pic-veneer option.
2015-07-22Don't compare symbol addresses directlyH.J. Lu9-25/+127
GCC 5 will fold symbol address comparison, assuming each symbol has a different address, which leads to abort. We should use separate functions to compare symbol address. PR gold/18663 * testsuite/Makefile.am (script_test_1_SOURCES): Set to script_test_1a.cc script_test_1b.cc. (script_test_11_r.o): Replace script_test_11.o with script_test_11a.o script_test_11b.o. (script_test_11.o): Removed. (script_test_11a.o): New. (script_test_11b.o): Likewise. * testsuite/Makefile.in: Regenerated. * testsuite/script_test_1.h: New file. * testsuite/script_test_1b.cc: Likewise. * testsuite/script_test_11.h: Likewise. * testsuite/script_test_11b.c: Likewise. * testsuite/script_test_1.cc: Renamed to ... * testsuite/script_test_1a.cc: This. Include "script_test_1.h". (main): Call check_int and check_ptr. * testsuite/script_test_11.c: Renamed to ... * testsuite/script_test_11a.c: This. Include "script_test_11.h". (main): Call ptr_equal.
2015-07-22Mark global with hidden attributeH.J. Lu4-3/+10
GCC 5 will generate a relocation for protected symbol: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248 when compiling for a shared library. It is undefined to access protected symbol in IFUNC selector function inside a shared library. PR gold/18628 * testsuite/ifuncdep2.c (global): Change protected to hidden. * testsuite/ifuncmod1.c (global): Likewise. * testsuite/ifuncmod5.c (global): Likewise.
2015-07-22GOLD aarch64 warning fixAlan Modra2-1/+5
aarch64.cc:2026:50: error: integer overflow in expression [-Werror=overflow] Insntype adr_insn = adrp_insn & ((1 << 31) - 1); * aarch64.cc (try_fix_erratum_843419_optimized): Warning fix.
2015-07-21Fix problem where __start_ and __stop_ section symbols do not honor version ↵Cary Coutant2-0/+17
script. When creating the special __start_ and __stop_ section symbols, gold does not check the version script to see if they should be local instead of global. 2015-07-21 Cary Coutant <ccoutant@gmail.com> gold/ PR gold/18548 * symtab.cc (Symbol_table::do_define_in_output_data): Check for forced local symbol even when oldsym != NULL. (Symbol_table::do_define_in_output_segment): Likewise. (Symbol_table::do_define_as_constant): Likewise.
2015-07-21Fix typo in PR number.Cary Coutant1-1/+1
Fix internal error when linking an archive library with no preceding objects. gold/ PR gold/18698 * archive.cc (Library_base::should_include_member): Don't use entry point for relocatable links, or if target is not yet valid. * parameters.cc (Parameters::entry): Check target_valid().
2015-07-21Fix internal error when linking an archive library with no preceding objects.Cary Coutant3-5/+16
gold/ PR gold/18696 * archive.cc (Library_base::should_include_member): Don't use entry point for relocatable links, or if target is not yet valid. * parameters.cc (Parameters::entry): Check target_valid().
2015-07-20Optimize erratum 843419 fix.Han Shen2-12/+166
gold/ChangeLog: * aarch64.cc (AArch64_insn_utilities::is_adr): New method. (AArch64_insn_utilities::aarch64_adr_encode_imm): New method. (AArch64_insn_utilities::aarch64_adrp_decode_imm): New method. (E843419_stub): New sub-class of Erratum_stub. (AArch64_relobj::try_fix_erratum_843419_optimized): New method. (AArch64_relobj::section_needs_reloc_stub_scanning): Try optimized fix. (AArch64_relobj::create_erratum_stub): Add 1 argument. (Target_aarch64::scan_erratum_843419_span): Pass in adrp insn offset.
2015-07-20Update testsuite/pr18689.sh for older GCCH.J. Lu1-1/+1
Older GCC, like 4.2, generates .debug_macinfo section instead of .debug_macro section. This patch updates testsuite/pr18689.sh to support it.
2015-07-20Properly set arm-specific elf flags wrt hardfp.Han Shen2-0/+7
gold/ChangeLog: * arm.cc (Target_arm::do_adjust_elf_header): Set flags into view.
2015-07-20Clear SHF_COMPRESSED flag bit from input to outputH.J. Lu6-7/+88
For relocatable link, we should clear the SHF_COMPRESSED flag bit from input group section. PR gold/18689 * layout.cc (Layout::layout): Clear the SHF_COMPRESSED flag bit from input group section for relocatable link. * testsuite/Makefile.am (check_SCRIPTS): Add pr18689.sh. (check_DATA): Add pr18689.stdout. (MOSTLYCLEANFILES): Add pr18689a.o pr18689b.o. (pr18689.stdout): New rule. (pr18689a.o): Likewise. (pr18689b.o): Likewise. (pr18689.o): Likewise. * testsuite/pr18689.c: New file. * testsuite/pr18689.sh: Likewise. * testsuite/Makefile.in: Regenerated.
2015-07-20Remove warning about references from shared objects to hidden symbols.Yiran Wang5-20/+35
gold/ PR gold/15574 * resolve.cc (Symbol_table): Remove warning about references from shared objects to hidden symbols. * testsuite/Makefile.am (hidden_test): Add hidden_test.syms. * testsuite/Makefile.in: Regenerate. * testsuite/hidden_test.sh: Check dynamic symbol table; update expected error messages.
2015-07-14Make default compression gABI compliantH.J. Lu4-8/+17
All programs in binutils+gdb git repo now support gABI compression with the SHF_COMPRESSED bit. This patch makes the zlib-gabi option as compression default for gas, gold, ld and objcopy, instead of the zlib-gnu option whose outputs are incompatible with gABI. binutils/ * objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not zlib-gnu. * doc/binutils.texi: Change --compress-debug-sections and --compress-debug-sections=zlib to zlib-gabi. binutils/testsuite/ * binutils-all/compress.exp: Update. gas/ * as.c (parse_args): Make --compress-debug-sections and --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * doc/as.texinfo: Change --compress-debug-sections and --compress-debug-sections=zlib to zlib-gabi. gold/ * compressed_output.cc (Output_compressed_section::set_final_data_size): Make --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * testsuite/Makefile.am (flagstest_compress_debug_sections.check): Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of ".zdebug_". * testsuite/Makefile.in: Regenerated. ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi. ld/testsuite/ * ld-elf/zlibbegin.rS: Updated to .debug_.* with the SHF_COMPRESSED bit. * ld-elf/zlibnormal.rS: Likewise.
2015-07-12Extend --compress-debug-sections in goldH.J. Lu6-14/+350
This patch extends --compress-debug-sections= with [zlib-gnu|zlib-gabi] in gold. PR gold/18322 * compressed_output.cc (zlib_compress): Add argument for compression header size. Set header size to compression header size if it isn't 0. Don't write out the zlib header here. (Output_compressed_section::set_final_data_size): Support zlib-gnu and zlib-gabi compressions. Pass compression header size to zlib_compress and write out compression header. Set the SHF_COMPRESSED bit for zlib-gabi compression. Otherwise clear the SHF_COMPRESSED bit * options.h (compress_debug_sections): Add zlib-gnu and zlib-gabi. * output.h (Output_section::set_flags): New. * testsuite/Makefile.am (check_PROGRAMS): Add flagstest_compress_debug_sections_none, flagstest_compress_debug_sections_gnu and flagstest_compress_debug_sections_gabi. (check_DATA): Add flagstest_compress_debug_sections_none.stdout. flagstest_compress_debug_sections.stdout, flagstest_compress_debug_sections.cmp, flagstest_compress_debug_sections.check, flagstest_compress_debug_sections_gnu.stdout, flagstest_compress_debug_sections_gnu.cmp, flagstest_compress_debug_sections_gnu.check, flagstest_compress_debug_sections_gabi.stdout, flagstest_compress_debug_sections_gabi.cmp and flagstest_compress_debug_sections_gabi.check. (flagstest_compress_debug_sections_none): New. (flagstest_compress_debug_sections_none.stdout): Likewise. (flagstest_compress_debug_sections.stdout): Likewise. (flagstest_compress_debug_sections.check): Likewise. (flagstest_compress_debug_sections.cmp): Likewise. (flagstest_compress_debug_sections_gnu): Likewise. (flagstest_compress_debug_sections_gnu.stdout): Likewise. (flagstest_compress_debug_sections_gnu.check): Likewise. (flagstest_compress_debug_sections_gnu.cmp): Likewise. (flagstest_compress_debug_sections_gabi): Likewise. (flagstest_compress_debug_sections_gabi.stdout): Likewise. (flagstest_compress_debug_sections_gnu.check): Likewise. (flagstest_compress_debug_sections_gnu.cmp): Likewise. * testsuite/Makefile.in: Regenerated.
2015-07-12Add SHF_COMPRESSED section decompression to goldH.J. Lu12-19/+237
This patch adds SHF_COMPRESSED section decompression to gold. PR gold/18321 * compressed_output.h (decompress_input_section): Add arguments for ELF class, big endian and sh_flags. * compressed_output.cc (decompress_input_section): Likewise. Support the SHF_COMPRESSED section. * dynobj.h (Dynobj): Add elfsize and is_big_endian member functions. * plugin.h (Pluginobj): Likewise. * layout.cc (Layout::get_output_section_flags): Also clear the SHF_COMPRESSED bit. * object.h (Compressed_section_info): Add flag to store sh_flags. (Object): Add pure virtual elfsize and is_big_endian member functions. * object.cc (need_decompressed_section): Don't skip the ".zdebug" prefix here. (build_compressed_section_map): Check SHF_COMPRESSED for uncompressed size. Store sh_flags in Compressed_section_info. Pass size, big_endian and sh_flags to decompress_input_section. Skip the ".debug"/".zdebug" prefix when passing section name to need_decompressed_section. (Sized_relobj_file<size, big_endian>::do_find_special_section): Don't check ".zdebug_*" sections. (Object::decompressed_section_contents): Pass ELF class, big endian and sh_flags to decompress_input_section. * reloc.cc (Sized_relobj_file<size, big_endian>::write_sections): Likewise. * testsuite/Makefile.am (check_DATA): Add debug_msg_cdebug_gabi.err and gdb_index_test_2_gabi.stdout. (MOSTLYCLEANFILES): Add debug_msg_cdebug_gabi.err and gdb_index_test_2_gabi.stdout. (debug_msg_cdebug_gabi.o): New. (odr_violation1_cdebug_gabi.o): Likewise. (odr_violation2_cdebug_gabi.o): Likewise. (debug_msg_cdebug_gabi.err): Likewise. (check_SCRIPTS): Add gdb_index_test_2_gabi.sh. (gdb_index_test_cdebug_gabi.o): Likewise. (gdb_index_test_2_gabi): Likewise. (gdb_index_test_2_gabi.stdout): Likewise. * testsuite/gdb_index_test_2_gabi.sh: New file. * testsuite/Makefile.in: Regenerated.
2015-07-09Use "gold_info" instead of "gold_warning" for erratum fix.Han Shen2-2/+10
gold/ChangeLog: * aarch64.cc (Target_aarch64::scan_erratum_843419_span): Use 'gold_info'. (Target_aarch64::scan_erratum_835769_span): USe 'gold_info'.
2015-07-09Drop 'missing mapping symbols' warning for arm and aarch64.Han Shen3-13/+10
The psABI (AAELF) says this about mapping symbols: 4.6.5.1 Section-relative mapping symbols Mapping symbols defined in a section define a sequence of half-open address intervals that cover the address range of the section. Each interval starts at the address defined by the mapping symbol, and continues up to, but not including, the address defined by the next (in address order) mapping symbol or the end of the section. A section must have a mapping symbol defined at the beginning of the section; however, if the section contains only data then the mapping symbol may be omitted. That makes it pretty clear that, in the absence of a mapping symbol, the entire section can be treated as data. gold/ChangeLog: * aarch64.cc (AArch64_relobj::scan_errata): Drop missing symbol warning. * arm.cc (Arm_relobj::scan_section_for_cortex_a8_erratum): Drop missing symbol warning.
2015-07-07Make gold aarch64 accept long form of mapping symbols.Han Shen2-4/+18
2015-07-07 Han Shen <shenhan@google.com> gold/ChangeLog: 2015-07-06 Han Shen <shenhan@google.com> * aarch64.cc (AArch64_relobj::do_count_local_symbols): Make legal of mapping symbols.
2015-07-06Align text section ends so that stub tables appears at expected addresses.Doug Kwan12-4/+51
2015-06-29Patch for gold internal error while fixing erratum 843419.Han Shen2-4/+56
The crash reason is that the insn to be moved to stub may be a relocation spot, so instead of placing the origin insn (that is insn before-relocation) to the stub, I have to place the relocated one. Note the relocation involved is non-pc-relative, so it is safe to move the relocated insn. gold/ChangeLog: 2015-06-29 Han Shen <shenhan@google.com> * AArch64.cc (Erratum_stub::Insn_utilities): New typedef. (Erratum_stub::update_erratum_insn): New method. (Stub_table::relocate_stubs): Modified to place relocated insn. (AArch64_relobj::fix_errata): Modified gold_assert.
2015-06-12[gold][aarch64] Fix erratum 835769.Han Shen3-44/+285
gold/ChangeLog: * aarch64.cc (AArch64_insn_utilities::BYTES_PER_INSN): Move defintion outside class definition. (AArch64_insn_utilities::AARCH64_ZR): New static constant. (AArch64_insn_utilities::aarch64_op31): New member. (AArch64_insn_utilities::aarch64_ra): New member. (AArch64_insn_utilities::aarch64_mac): New member. (AArch64_insn_utilities::aarch64_mlxl): New member. (ST_E_835769): New global enum member. (Stub_table::relocate_stubs): Add 835769 handler. (Stub_template_repertoire::Stub_template_repertoire): Install new stub type. (AArch64_relobj::scan_errata): This func is renamed from scan_erratum_843419. (AArch64_relobj::do_count_local_symbols): Add 835769 handler. (AArch64_relobj::do_relocate_sections): Add 835769 handler. (AArch64_relobj::scan_sections_for_stubs): Add 835769 handler. (Target_aarch64::scan_erratum_835769_span): New method. (Target_aarch64::create_erratum_stub): New method. (Target_aarch64::is_erratum_835769_sequence): New method. (Target_aarch64::scan_erratum_843419_sequence): Move part of the code into create_erratum_stub. * options.h (fix_cortex_a53_835769): New option.
2015-06-11Fix gold build error at -O0.Cary Coutant2-2/+12
In aarch64.cc, Erratum_stub::STUB_ADDR_ALIGN and Reloc_stub::STUB_ADDR_ALIGN are declared as static const int, and initialized in the class body. These values are referenced from outside the class body, and with no optimization, the references go unresolved. gold/ * aarch64.cc (Erratum_stub::STUB_ADDR_ALIGN): Move initialization outside class body. (Reloc_stub::STUB_ADDR_ALIGN): Likewise.
2015-06-11Fix bug where SECTIONS clause does not handle compressed debug sections.Cary Coutant4-12/+33
When laying out .debug_* sections, we translate the names of compressed debug sections that start with ".zdebug", but when processing input section specs in a linker script, we do not handle the translation there. This results in an internal error as reported in PR 17731. gold/ PR gold/17731 * layout.cc (corresponding_uncompressed_section_name): New function. (Layout::choose_output_section): Call it. * layout.h (corresponding_uncompressed_section_name): New function. * script-sections.cc (Input_section_info::set_section_name): Check for compressed debug section (.zdebug style).
2015-06-11Fix broken gold/testsuite/script_test_12 in some setup.Jing Yu3-0/+13
This patch adds -O0 to gold script_test_12 test, hoping that compiler won't change the order of globel variables that the test assumes. Changelog: testsuite/Makefile.am: Add -O0 to compile script_test_12 test. testsuite/Makefile.in: Regenerate.
2015-06-11[GOLD] Fix handling of __start/__stop symbolsDavide Italiano2-2/+6
If the section contains 'Q' in the name, is_cident() returns false, __start and __stop symbols for the section are not generated.. * gold.h (is_cident): Correct typo.
2015-06-10Patch for erratum-843419 (2 of 2 - fix erratum occurrences).Han Shen2-176/+710
Now fixing for 843419 is fully functional. The first part of the erratum fix CL is here - https://sourceware.org/ml/binutils/2015-04/msg00229.html gold/ChangeLog 2015-06-10 Han Shen <shenhan@google.com> * aarch64.cc(global enum): New constants representing stub types. (Stub_template): New POD struct. (Stub_template_repertoire): New class. (Stub_base): New class. (Erratum_stub): New class. (Reloc_stub): Refactored to be a subclass of Stub_base. (Reloc_stub::Stub_type): Removed. (Reloc_stub::offset): Moved to Stub_base. (Reloc_stub::set_offset): Moved to Stub_base. (Reloc_stub::destination_address): Moved to Stub_base. (Reloc_stub::set_destination_address): Moved to Stub_base. (Reloc_stub::reset_destination_address): Moved to Stub_base. (Reloc_stub::stub_type): Renamed and moved to Stub_base. (Reloc_stub::stub_size): Renamed and moved to Stub_base. (Reloc_stub::stub_insns): Renamed and moved to Stub_base. (Reloc_stub::write): Moved to Stub_base. (Reloc_stub::invalid_offset): Moved to Stub_base. (Reloc_stub::invalid_address): Moved to Stub_base. (Reloc_stub::stub_type_): Renamed and moved to Stub_base. (Reloc_stub::stub_insns_): Moved to Stub_base. (Reloc_stub::offset_): Moved to Stub_base. (Reloc_stub::destination_address_): Moved to Stub_base. (Stub_table::The_aarch64_relobj): New typedef. (Stub_table::The_erratum_stub): New typedef. (Stub_table::The_erratum_stub_less): New typedef. (Stub_table::The_erratum_stub_set): New typedef. (Stub_table::The_erratum_stub_set_iter): New typedef. (Stub_table::empty): Added emptiness testing for erratum stubs. (Stub_table::add_erratum_stub): New method to add an erratum stub. (Stub_table::find_erratum_stub): New method. (Stub_table::find_erratum_stubs_for_input_section): New method. (Stub_table::erratum_stub_address): New method. (Stub_table::update_date_size_changed_p): Modified to handle erratum stubs. (Stub_table::do_addralign): Modified to handle erratum stubs. (Stub_table::erratum_stubs_): New member. (Stub_table::erratum_stub_size_): New member. (Stub_table::relocate_stubs): Modified to handle erratum stubs. (Stub_table::do_write): Modified to handle erratum stubs. (AArch64_relobj::The_erratum_stub): New typedef. (AArch64_relobj::Erratum_stub_set_iter): New typedef. (AArch64_relobj::fix_errata): New method. (Target_aarch64::The_reloc_stub_type): Removed. (Target_aarch64::The_erratum_stub): New typede. (AArch64_relocate_functions::construct_b): New method.
2015-06-08Update French Translations for LD and GOLD.Nick Clifton2-0/+3410
ld * po/fr.po: Updated French Translation. gold * po/fr.po: New French Translation.
2015-06-07Fix incorrect handling of STT_COMMON symbols in shared libraries.Cary Coutant3-15/+27
The gABI allows STT_COMMON symbols to appear in executables and shared objects, so that the dynamic loader can resolve commons across modules. When reading a shared object, however, an STT_COMMON symbol should be treated as a regular definition at link time. In a relocatable object, the gABI requires that any STT_COMMON symbols must also be defined in the special SHN_COMMON section (which we extend to include target-specific small and large common sections). Thus, there is no need for gold to treat STT_COMMON symbols as common unless the st_shndx field is also set to a common section. gold/ PR gold/18288 * resolve.cc (symbol_to_bits): Remove type parameter; adjust all callers. Don't use STT_COMMON to check for common symbols. (Symbol_table::resolve): Warn if relocatable object has STT_COMMON symbol that's not in a common section. * symtab.h (Symbol::is_common): Don't use STT_COMMON to check for common symbols.
2015-06-04Add diststuff target to Makefile.Cary Coutant3-2/+12
gold/ PR gold/18200 * Makefile.am (diststuff): Add target. * Makefile.in: Regenerate.
2015-06-04Change default to discard temporary local symbols in merge sections.Cary Coutant4-6/+81
Add --discard-none to keep all local symbols. gold/ PR gold/17498 * object.cc (Sized_relobj_file::do_count_local_symbols): Discard temporary locals in merge sections. * options.cc (General_options::parse_discard_all): New method. (General_options::parse_discard_locals): New method. (General_options::parse_discard_none): New method. (General_options::General_options): Initialize discard_locals_. * options.h (--discard-all): Convert to special option. (--discard-locals): Likewise. (--discard-none): New option. (General_options::discard_all): New method. (General_options::discard_locals): New method. (General_options::discard_sec_merge): New method. (General_options::Discard_locals): New enum. (General_options::discard_locals_): New data member.
2015-06-03Fix SIZEOF_HEADERS in gold.Cary Coutant3-3/+35
Gold undercounts the number of program headers it's going to add when initially evaluating the SIZEOF_HEADERS expression. As a result, scripts that use it end up skipping a page unnecessarily when the starting address is too low. The undercounting is because it doesn't count the PT_INTERP segment. Then, when finalizing symbols, gold overcounts the program headers: all segments have already been created, but we still count the headers we expected to add from the script. This patch fixes both problems. gold/ * script-sections.cc (Script_sections::Script_sections): Initialize segments_created_. (Script_sections::create_note_and_tls_segments): Set flag when segments are created. (Script_sections::expected_segment_count): Count PT_INTERP. (Script_sections::attach_sections_using_phdrs_clause): Set flag when segments are created. * script-sections.h (Script_sections::segments_created_): New data member.
2015-06-03Fix gold to group sections correctly via linker script.Cary Coutant8-2/+298
In PR 15370, it is noted that gold does not distinguish between "*(.foo .bar)" and "*(.foo) *(.bar)" in linker scripts. In both cases, gold groups all .foo sections together, followed by all .bar sections, whereas in the first case, it should collect all .foo and .bar sections in the order seen. If you add sort specs, the Gnu linker has some bizarre corner cases that I do not try to replicate. In particular, "*(SORT_BY_NAME(.foo) SORT_BY_NAME(.bar))" does the same thing as "*(.foo) *(.bar)". But if you apply a sort spec to just one of several patterns, say, "*(SORT_BY_NAME(.foo) .bar)", the Gnu linker will collect any .bar section it sees before the first .foo, then all .foo sections, then all remaining .bar sections. With this patch, if any of the input patterns have a sort spec, gold will group them all as it did before; e.g., all .foo sections followed by all .bar sections. 2015-06-03 Cary Coutant <ccoutant@gmail.com> gold/ PR gold/15370 * script-sections.cc (Output_section_element_input::set_section_addresses): When there are several patterns with no sort spec, put all sections in the same bin. * testsuite/Makefile.am (script_test_12): New testcase. (script_test_12i): New testcase. * testsuite/Makefile.in: Regenerate. * testsuite/script_test_12.t: New test linker script. * testsuite/script_test_12i.t: New test linker script. * testsuite/script_test_12a.c: New test source file. * testsuite/script_test_12b.c: New test source file.
2015-06-02Fix Sniff_file to get an aligned view.Cary Coutant2-1/+6
gold/ * nacl.h (Sniff_file): Switch parameters to get_view to get an aligned view.
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