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* Update French Translations for LD and GOLD.Nick Clifton2015-06-082-0/+3410
| | | | | ld * po/fr.po: Updated French Translation. gold * po/fr.po: New French Translation.
* Fix incorrect handling of STT_COMMON symbols in shared libraries.Cary Coutant2015-06-073-15/+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.
* Add diststuff target to Makefile.Cary Coutant2015-06-043-2/+12
| | | | | | | gold/ PR gold/18200 * Makefile.am (diststuff): Add target. * Makefile.in: Regenerate.
* Change default to discard temporary local symbols in merge sections.Cary Coutant2015-06-044-6/+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.
* Fix SIZEOF_HEADERS in gold.Cary Coutant2015-06-033-3/+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.
* Fix gold to group sections correctly via linker script.Cary Coutant2015-06-038-2/+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.
* Fix Sniff_file to get an aligned view.Cary Coutant2015-06-022-1/+6
| | | | | | gold/ * nacl.h (Sniff_file): Switch parameters to get_view to get an aligned view.
* PR 17819: Fix --build-id=tree when using --compress-debug-sections.Cary Coutant2015-06-026-97/+194
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When --build-id=tree is selected, gold would schedule a set of tasks to run to compute md5 hashes in parallel on chunks of the file. The scheduling was done before the Write_after_input_sections_task ran, so if we are compressing debug sections, the output file will change size and be remapped to a new address, sometimes causing the build id computation to crash, but even when it doesn't crash, it wouldn't include the debug information in the hash computation. This patch delays the scheduling of the md5 tasks until after Write_after_input_sections_task. gold/ PR gold/17819 * gold.cc (queue_final_tasks): When --build-id=tree, queue a separate task to schedule the build id computation. * layout.cc (Hash_task::Hash_task): Remove build_id_blocker, add Output_file and offset. (Hash_task::run): Get and release the input views. (Hash_task::is_runnable): Always return NULL (always runnable). (Layout::queue_build_id_tasks): Remove. (Layout::write_build_id): Add array_of_hashes and size_of_hashes parameters; use them instead of class members. (Build_id_task_runner::run): New function. (Close_task_runner::run): Pass array_of_hashes and size_of_hashes to write_build_id. * layout.h (Layout::queue_build_id_tasks): Remove. (Layout::write_build_id): Add array_of_hashes and size_of_hashes parameters. (Layout::array_of_hashes_): Remove. (Layout::size_of_array_of_hashes_): Remove. (Layout::input_view_): Remove. (Build_id_task_runner): New class. (Close_task_runner::Close_task_runner): Add array_of_hashes and size_of_hashes parameters. (Close_task_runner::array_of_hashes_): New data member. (Close_task_runner::size_of_hashes_): New data member. * testsuite/Makefile.am (flagstest_compress_debug_sections_and_build_id_tree): New test. * testsuite/Makefile.in: Regenerate.
* Use a std::vector instead of a std::map to hold Input_merge_map.Rafael Ávila de Espíndola2015-06-013-35/+19
| | | | | A std::map is hardly the best data structure for a small map from small integers.
* [GOLD] Add PowerPC64 -fsplit-stack supportAlan Modra2015-05-163-6/+139
| | | | | | | | | | PowerPC64 ELFv1 requires a tweak to find_functions in order to return code addresses, rather than OPD entry addresses. * reloc.cc (Sized_relobj_file::find_functions): Use function_location. * powerpc.cc (Target_powerpc::do_calls_non_split): New function. (addi_12_1, addis_2_12, addis_12_1, cmpld_7_12_0): New constants. (lis_0): Rename from lis_0_0.
* Change Section_id type to use Relobj* instead of Object*.Cary Coutant2015-05-0212-43/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2015-04-29 Cary Coutant <cary@google.com> Rafael Ávila de Espíndola <rafael.espindola@gmail.com> gold/ * gc.h (Garbage_collection::is_section_garbage): Change Object* to Relobj*. (Garbage_collection::add_reference): Likewise. (Garbage_collection::gc_process_relocs): Likewise. Don't push object/shndx pair onto *secvec for dynamic objects. Don't follow relocations pointing to dynamic objects for GC. * icf.cc (Icf::find_identical_sections): Change Object* to Relobj*. (Icf::unfold_section): Likewise. (Icf::is_section_folded): Likewise. (Icf::get_folded_section): Likewise. * icf.h: (Icf::get_folded_section): Likewise. (Icf::unfold_section): Likewise. (Icf::is_section_folded): Likewise. (Icf::section_has_function_pointers): Likewise. (Icf::set_section_has_function_pointers): Likewise. * object.h (Section_id): Likewise. (Const_section_id): Likewise. * output.cc (Output_section::update_section_layout): Likewise. * output.h: (Output_section_lookup_maps::find_relaxed_input_section): Likewise. * plugin.cc (update_section_order): Likewise. (unique_segment_for_sections): Likewise. * powerpc.cc (Powerpc_relobj::add_reference): Likewise. (Target_powerpc::do_gc_add_reference): Likewise. (Target_powerpc::gc_process_relocs): Likewise. (Target_powerpc::do_gc_add_reference): Likewise. * symtab.cc (Symbol_table::is_section_folded): Likewise. (Symbol_table::gc_mark_symbol): Likewise. * symtab.h: (Symbol_table::is_section_folded): Likewise. * target.h: (Sized_target::gc_add_reference): Likewise. (Sized_target::do_gc_add_reference): Likewise.
* Updated translations for various binutils components.Nick Clifton2015-04-292-629/+1856
| | | | | | | | gold * po/fi.po: Updated Finnish translation. opcodes * po/fr.po: Updated French translation. gprof * po/da.po: Update Danish translation.
* Tidy PowerPC gold find_global_entry usesAlan Modra2015-04-282-17/+35
| | | | | | | | | | | | | | | | | | Completely removing the assert probably wasn't the best idea, so reinstate it for allocated sections. Also cope with debug info potentially referring to a missing plt call stub. And a tidy. find_global_entry now returns an Address, so make temps holding the return value of type Address, and compare against invalid_address. * powerpc.cc (Target_powerpc::do_dynsym_value): Use Address rather than unsigned int for find_global_entry result temp. Compare against invalid_address. (Target_powerpc::do_plt_address_for_global): Likewise. (Target_powerpc::Relocate::relocate): Likewise. Don't assert on plt call stub existence for debug info. Do assert for plt and global entry stub existence if an alloc section.
* PowerPC gold assertion on missing global entry stubAlan Modra2015-04-282-14/+23
| | | | | | | | | | | | Global entry stubs are used on ELFv2 to provide addresses for functions not defined in a non-PIC executable but whose address is taken, in much the same way as PLT stub code is used on other targets to provide function addresses. We don't want to insert a global entry stub just because (bogus) debug info refers to the address of a non-local function, but we also don't want gold to die. * powerpc.cc (Target_powerpc::Relocate::relocate): Don't assert on missing global entry stub due to bogus debug info.
* [gold] Rename '--fix-cortex-a53' to '--fix-cortex-a53-843419'.Han Shen2015-04-273-6/+14
| | | | | | | | | | | | Keep gold consistent with bfd erratum-fixing option names, so as to ease life in Makefile/scripts. gold/ * options.h (--fix-cortex-a53-843419): Rename option. * aarch64.cc (AArch64_relobj::do_count_local_symbols): Use renamed option. (AArch64_relobj::scan_sections_for_stubs): Use renamed option.
* If a range is missing, assume the input address is mapped.Rafael Ávila de Espíndola2015-04-276-6/+77
| | | | | When Output_section::is_input_address_mapped is called we have entries for all dropped ranges, but not for all ranges.
* Add option --weak-unresolved-symbols to treat unresolved symbols as weak ref.Sriraman Tallam2015-04-236-5/+69
| | | | | | | | | This patch adds option --weak-unresolved-symbols to treat unresolved symbols as weak references. This is helpful when we want the link to succeed with unresolved symbols and the dynamic loader to not complain at run-time. Option --warn-unresolved-symbols lets the link succeed but could fail at run-time with unresolved symbol warnings especially when the unresolved symbols have GOT entries and dynamic relocations against them, like when -fPIE is used.
* Add option --weak-unresolved-symbols to treat unresolved as weak references.Sriraman Tallam2015-04-231-0/+45
| | | | | | | | | | | | | | | | | | | This patch adds option --weak-unresolved-symbols to treat unresolved symbols as weak references. This is helpful when we want the link to succeed with unresolved symbols and the dynamic loader to not complain at run-time. Option --warn-unresolved-symbols lets the link succeed but could fail at run-time with unresolved symbol warnings especially when the unresolved symbols have GOT entries and dynamic relocations against them, like when -fPIE is used. 2015-04-23 Sriraman Tallam <tmsriram@google.com> * options.h (--weak-unresolved-symbols): New option. * symtab.cc (Symbol_table::sized_write_globals): Change symbol binding to weak with new option. * symtab.h (is_weak_undefined): Check for new option. (is_strong_undefined): Check for new option. * testsuite/Makefile.am (weak_unresolved_symbols_test): New test. * testsuite/Makefile.in: Regenerate. * testsuite/weak_unresolved_symbols_test.cc: New file.
* Ensure that dynamically loaded libraries won't use separate copies of ↵Ian Coolidge2015-04-202-1/+10
| | | | | | | | GNU_UNIQUE symbols. gold/ * symtab.cc (Symbol::should_add_dynsym_entry): Return true for GNU_UNIQUE.
* Use LIFO instead of FIFO to implement gc's transitive closure.Rafael Ávila de Espíndola2015-04-176-9/+19
| | | | | | FIFO is harder to implement and has less locality than LIFO. It is also not necessary to implement a transitive closure, a LIFO works just as well.
* [gold] The first patch to address cortex-a53 erratum-843419.Han Shen2015-04-163-2/+600
| | | | | | | | | | | | | | | | | | | | It implemented scanning the binary and reporting occurrences to users when '--fix-cortex-a53' is turned on. With this, gold users will be able to see if or not there are such erratum occurrences in the output binary. Also included in the CL is reading/recording mapping symbols, which is needed during scan. gold/ChangeLog: * aarch64.cc (AArch64_insn_utilities): New utility class. (AArch64_relobj::Mapping_symbol_position): New struct. (AArch64_relobj::Mapping_symbol_info): New typedef. (AArch64_relobj::do_count_local_symbols): New function overriding parent's implementation. (AArch64_relobj::mapping_symbol_info_): New member (AArch64_relobj::scan_erratum_843419): New method. (Target_aarch64::scan_erratum_843419_span): New method. (Target_aarch64::is_erratum_843419_sequence): New method. * options.h (fix_cortex_a53): New option.
* Allow gold to resolve defined TLS symbols in a PIE link.Cary Coutant2015-04-095-148/+378
| | | | | | | | | | | | | | This patch fixes Symbol::final_value_is_known so that a defined TLS symbol in a PIE link is treated as having a known final value, thus allowing GD->LE TLS optimization, eliminating an unnecessary GOT entry and dynamic relocation. gold/ * symtab.cc (Symbol::final_value_is_known): Check for TLS symbol in a PIE link. * testsuite/Makefile.am (tls_pie_test.sh): New test. * testsuite/Makefile.in: Regenerate. * testsuite/tls_pie_test.sh: New.
* Improve ODR checking in gold.Cary Coutant2015-04-095-17/+57
| | | | | | | | | | | | | | | gold/ * debug.h (DEBUG_LOCATION): New. (DEBUG_ALL): Include DEBUG_LOCATION. (debug_string_to_enum): Add DEBUG_LOCATION. * dwarf_reader.cc (Sized_dwarf_line_info::read_lines): Fix debug output to print correct context. (Sized_dwarf_line_info::do_addr2line): Add debug output. Return up to 4 more locations at the beginning of the function. * symtab.cc (Symbol_table::detect_odr_violations): Get canonical result before sorting list of line numbers. * testsuite/debug_msg.sh: Allow range of line numbers for canonical results on optimized code.
* Add AArch32 support for arm gold linker.Han Shen2015-04-072-1/+28
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* Fix the signature of a virtual method to match the one in the parent class.Rafael Ávila de Espíndola2015-04-062-6/+8
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* Avoid a call to find by using the return value of insert.Rafael Ávila de Espíndola2015-04-062-9/+7
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* Avoid a copy constructor call.Rafael Ávila de Espíndola2015-04-062-2/+8
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* [Gold,x86_64] Convert mov foo@GOTPCREL(%rip), %reg to lea foo(%rip), %regIlya Tocar2015-04-068-6/+275
| | | | | | | | | | | | | | | | | | | 2015-04-06 Ilya Tocar <ilya.tocar@intel.com> PR gold/17641 * x86_64.cc (Target_x86_64::can_convert_mov_to_lea): New. (Target_x86_64::Scan::local): Don't create GOT entry, when we can convert mov to lea. (Target_x86_64::Scan::global): Ditto. (Target_x86_64::Relocate::relocate): Convert mov foo@GOTPCREL(%rip), %reg to lea foo(%rip), %reg if possible. * testsuite/Makefile.am (x86_64_mov_to_lea): New test. * testsuite/x86_64_mov_to_lea1.s: New. * testsuite/x86_64_mov_to_lea2.s: Ditto. * testsuite/x86_64_mov_to_lea3.s: Ditto. * testsuite/x86_64_mov_to_lea4.s: Ditto. * testsuite/x86_64_mov_to_lea.sh: Ditto. ---
* Regenerate configure in bfd/binutils/gas/gdb/goldH.J. Lu2015-04-022-2/+6
| | | | | | | | | | | | | | | | | | | | | | | bfd/ * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gdb/ * Makefile.in (top_srcdir): New. * configure: Regenerated. gold/ * configure: Regenerated.
* Convert mov foo@GOT(%reg), %reg to lea foo@GOTOFF(%reg), %regIlya Tocar2015-04-019-33/+252
| | | | | | | | | | | | | | | | | | | 2015-04-01 Ilya Tocar <ilya.tocar@intel.com> PR gold/17640 * i386.cc (Target_i386::can_convert_mov_to_lea): New. (Target_i386::Scan::local): Don't create GOT entry, when we can convert GOT to GOTOFF. (Target_i386::Scan::global): Ditto. (Target_i386::Relocate::relocate): Convert mov foo@GOT(%reg), %reg to lea foo@GOTOFF(%reg), %reg if possible. * testsuite/Makefile.am (i386_mov_to_lea): New test. * testsuite/i386_mov_to_lea1.s: New. * testsuite/i386_mov_to_lea2.s: Ditto. * testsuite/i386_mov_to_lea3.s: Ditto. * testsuite/i386_mov_to_lea4.s: Ditto. * testsuite/i386_mov_to_lea5.s: Ditto. * testsuite/i386_mov_to_lea.sh: Ditto.
* Regenerate configure in goldH.J. Lu2015-04-0110-420/+397
| | | | | | | | | | | | | | | | | | | | | | | | | | | Regenerate configure for zlib.m4 change, which adds --with-system-zlib and removes --with-zlib in gold. zlib is enabled unconditionally with builtin zlib imported from GCC. * Makefile.am (ZLIB): New. (ZLIBINC): Likewise. (AM_CFLAGS): Add $(ZLIBINC). (AM_CXXFLAGS): Likewise. (ldadd_varldadd_var): Add $(ZLIB). (incremental_dump_LDADD): Likewise. (dwp_LDADD): Likewise. * compressed_output.cc: Don't check HAVE_ZLIB_H to include <zlib.h>. (zlib_compress): Don't check HAVE_ZLIB_H. (zlib_decompress): Likewise. * options.h (compress_debug_sections): Likewise. * configure.ac (AM_CONDITIONAL): Removed. * testsuite/Makefile.am (ZLIB): New. (LDADD): Add $(ZLIB). Don't check HAVE_ZLIB. * Makefile.in: Regenerated. * config.in: Likewise. * configure: Likewise. * testsuite/Makefile.in: Likewise.
* Support AARCH64_TLSLD_ADD_DTPREL_* relocations.Jing Yu2015-03-303-9/+34
| | | | | | | | | | | | | | | | | | | | | Also Change _TLS_MODULE_BASE_. Always let it point to the start of TLS segment. 2015-03-28 Jing Yu <jingyu@google.com> * aarch64-reloc.def: New TLSLD_ADD_DTPREL_HI12, TLSLD_ADD_DTPREL_LO12_NC. * aarch64.cc (Target_aarch64::define_tls_base_symbol): Always let _TLS_MODULE_BASE_ point to the start of tls segment. (Target_aarch64::optimize_tls_reloc): Add cases for R_AARCH64_TLSLD_ADD_DTPREL_HI12 and R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC. (Target_aarch64::Scan::local): Likewise. (Target_aarch64::Scan::global): Likewise. (Target_aarch64::Relocate::relocate): Likewise. (Target_aarch64::Relocate::relocate_tls): Likewise. And remove subtracting tls segment size from symbol value for TLSLD_*_DTPREL relocations.
* Avoid looking up Input_merge_map multiple times.Rafael Ávila de Espíndola2015-03-275-29/+67
| | | | | Avoid looking up Input_merge_map multiple times when we know were are processing items from the same input section.
* PR18147, relocation overflow when --unresolved-symbols=ignore-allAlan Modra2015-03-242-1/+7
| | | | | | | | | | If ignoring unresolved symbols, ignore reloc overflows too. If not ignoring unresolved symbols we will report an error about the symbol being undefined, making any report about reloc overflow superfluous. PR18147 * powerpc.cc (Target_powerpc::Relocate::relocate): Don't report relocation errors for branches to strong undefined symbols.
* Remove is_merge_section_for.Rafael Ávila de Espíndola2015-03-237-115/+71
| | | | | | Now that Input_merge_map has an Output_section_data, we can use it in implementing find_merge_section and replace the only use of is_merge_section_for with it.
* Fix support for i386 TLS GD-to-IE optimization.Cary Coutant2015-03-222-19/+14
| | | | | | | | | | | | There are two cases to support, one with an SIB-form (6-byte) LEA, the other with a 5-byte LEA and a NOP after the call __tls_get_addr. Gold did not yet support the second case. This patch adds that support. gold/ PR gold/18106 * i386.cc (Target_i386::Relocate::tls_gd_to_ie): Fix support for non-SIB form of lea, with nop after the call.
* Fix internal error with -z relro when .tbss is last relro section.Cary Coutant2015-03-212-3/+10
| | | | | | | | | | | | | | | | | | | | | When calculating the padding necessary to align the end of the relro segment to a page boundary, gold erroneously ignores the .tdata section when checking to see if there are any relro sections (so if .tdata is the only relro section, we fail to align the segment properly), and erroneously pads the cumulative size of the segment based on the alignment of .tbss. If there are no relro sections following .tbss, it then fails to note the padding needed at the end of .tdata. This patch fixes both problems. is_first_section_relro() will return true when it sees a .tdata section, and we do not align the cumulative size until after checking for the .tbss section. gold/ PR gold/14217 * output.cc (Output_segment::is_first_section_relro): Don't ignore .tdata section. (Output_segment::set_section_addresses): Don't align size of relro segment for .tbss.
* Fix bug when optimizing string pools of aligned strings.Cary Coutant2015-03-212-1/+9
| | | | | | | | | | | | Tail optimization of string pools (enabled when linker is run with -O2 or greater) should not be done when the section alignment is greater than the size of the characters in the strings; otherwise, unaligned strings may result. gold/ PR gold/18010 * stringpool.cc (Stringpool_template): Don't optimize if section alignment is greater than sizeof(char).
* PR gold/18048: Fix INCLUDE directive support for goldCary Coutant2015-03-2110-22/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes INCLUDE directives in script files, so that when an INCLUDE appears inside a sections block, section commands block, or memory def block, the contents are parsed in the appropriate context. gold/ PR gold/18048 * script-c.h (script_include_directive): Add first_token parameter. * script.cc (script_include_directive): Add first_token parameter, and pass it to read_script_file. * yyscript.y (PARSING_SECTIONS_BLOCK, PARSING_SECTION_CMDS) (PARSING_MEMORY_DEF): New tokens. (top): Add new productions for INCLUDE files. (file_cmd): Replace file_or_sections_cmd with copy of its productions. Pass PARSING_LINKER_SCRIPT to script_include_directive. (section_block_cmd): Likewise; pass PARSING_SECTIONS_BLOCK. (section_cmd): Pass PARSING_SECTION_CMDS. (file_or_sections_cmd): Remove. (memory_def): Pass PARSING_MEMORY_DEF. * testsuite/Makefile.am (memory_test_2): New test. * testsuite/Makefile.in: Regenerate. * testsuite/memory_test_inc.t: New script file. * testsuite/memory_test_inc_1.t.src: New script file. * testsuite/memory_test_inc_2.t.src: New script file. * testsuite/memory_test_inc_3.t.src: New script file.
* Support compressed debug sections in dynamic object files.Cary Coutant2015-03-215-129/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for reading compressed debug info in shared objects. It actually simplifies things, by moving the support for compressed sections all the way up to the top-level Object class, eliminating the need for several virtual methods. gold/ * dwp.cc (Sized_relobj_dwo::do_section_contents): Delete. (Sized_relobj_dwo::setup): Build compressed section map. (Sized_relobj_dwo::do_decompressed_section_contents): Delete. * dynobj.cc (Sized_dynobj::base_read_symbols): Build compressed section map. * object.cc (Sized_relobj_file::Sized_relobj_file): Remove compressed_sections_ field. (build_compressed_section_map): Take Object instead of Sized_relobj_file parameter; add decompress_if_needed parameter. (Sized_relobj_file::do_find_special_sections): Store compressed section map in parent Object. (Sized_relobj_file::do_decompressed_section_contents): Move implementation to Object::decompressed_section_contents. (Sized_relobj_file::do_discard_decompressed_sections): Move implementation to Object::discard_decompressed_sections. * object.h (build_compressed_section_map): Declare. (Object::Object): Add compressed_sections_ field. (Object::section_is_compressed): Move implementation here. (Object::decompressed_section_contents): De-virtualize. (Object::discard_decompressed_sections): De-virtualize. (Object::do_section_is_compressed): Delete. (Object::do_decompressed_section_contents): Delete. (Object::set_compressed_sections): New method. (Object::compressed_sections): New method. (Object::compressed_sections_): New data member. (Compressed_section_info, Compressed_section_map): Move to top of file. (Sized_relobj_file::do_section_is_compressed): Delete. (Sized_relobj_file::do_decompressed_section_contents): Delete. (Sized_relobj_file::do_discard_decompressed_sections): Delete. (Sized_relobj_file::compressed_sections_): Move to Object class.
* Fix internal error in do_relocate_sections when using plugins.Cary Coutant2015-03-212-3/+9
| | | | | | | | | | | | | | | | | | | | | In a previous patch for PR 14675, to fix a problem with the .eh_frame section when static linking, I added a step to finalize the .eh_frame section at the end of the first link pass. This patch caused PR 18152, where a plugin-claimed object caused a non-claimed object's layout to be deferred until replacement files were read. The call to finalize_eh_frame_section() is happening before the layout of the deferred objects, leading to the internal error in do_relocate_sections. This patch moves the finalization of the .eh_frame section to after deferred objects have been processed. gold/ PR gold/14675 PR gold/18152 * gold.cc (queue_middle_tasks): Finalize .eh_frame after laying out deferred objects.
* Fix gold incremental test failures.Cary Coutant2015-03-114-36/+53
| | | | | | | | | | | | | | | | | | | | | | | Newer version of GCC pass -z relro to the linker, but incremental linking does not support relro. This patch adds a check to complain about the conflict, and changes the testsuite to pass -z norelro to the incremental tests. 2015-03-11 Cary Coutant <ccoutant@google.com> gold/ * options.cc (General_options::finalize): Don't allow -z relro with incremental linking. * testsuite/Makefile.am (incremental_test): Add -z norelro. (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.
* Fix failure in exception_static_test.Cary Coutant2015-03-096-40/+91
| | | | | | | | | | | | | | | | | | | | | | | | | Because the __EH_FRAME_BEGIN__ symbol is provided in an empty .eh_frame section in crtbeginT.o, if crt1.o has a non-empty .eh_frame section, we place all optimized .eh_frame sections into the output section ahead of the __EH_FRAME_BEGIN__ symbol, which breaks EH for statically-linked binaries. This patch fixes the problem by delaying the attachment of the optimized .eh_frame sections to the output section until we see the end marker section (or to the end of pass 1 if we never see an end marker). gold/ PR gold/14675 * ehframe.cc (Eh_frame::add_ehframe_input_section): Change return type; return enum indicating whether .eh_frame section is empty, optimizable, unrecognized, or an end marker. Adjust explicit instantiations. * ehframe.h (Eh_frame::Eh_frame_section_disposition): New enum type. (Eh_frame::add_ehframe_input_section): Change return type. * gold.cc (queue_middle_tasks): Call Layout::finalize_eh_frame_section. * layout.cc (Layout::layout_eh_frame): Don't add optimized sections to the .eh_frame output section until we see the end marker. (Layout::finalize_eh_frame_section): New. * layout.h: (Layout::finalize_eh_frame_section): New.
* Remove typename on elfcpp::Elf_types<size>::Elf_AddrH.J. Lu2015-03-052-4/+9
| | | | | | | | | | | GCC 4.2 complains: binutils/gold/object.cc:3261: error: using ‘typename’ outside of template This patch removes typename. It works with both GCC 4.2 and 4.8. * output.cc (Relobj::initialize_input_to_output_map<size>): Remove typename on elfcpp::Elf_types<size>::Elf_Addr.
* Fix a race condition when setting default target for ARM targets.Cary Coutant2015-03-042-4/+10
| | | | | | | gold/ * parameters.cc (Parameters::set_target_once): Call Target::select_as_default_target just once from here... (set_parameters_target): ...instead of from here.
* Remove empty class Merge_map.Rafael Ávila de Espíndola2015-03-0410-208/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2015-03-02 Rafael Ávila de Espíndola <rafael.espindola@gmail.com> * ehframe.cc (Cie::set_output_offset): Pass in and use a Output_section_data instead of a Merge_map. (Eh_frame::Eh_frame): Don't initialize merge_map_. (Eh_frame::read_cie): Use add_merge_mapping instead of Merge_map::add_mapping. (Eh_frame::read_fde): Ditto. (Eh_frame::set_final_data_size): Use this instead of this->merge_map_. (Eh_frame::do_output_offset): Use merge_output_offset istead of merge_map_->get_output_offset. (Eh_frame::do_is_merge_section_for): Delete. * ehframe.h (Fde::add_mapping): Pass in and use a Output_section_data instead of a Merge_map. (Cie::set_output_offset): Pass in a Output_section_data instead of a Merge_map. (Eh_frame::do_is_merge_section_for): Delete. (Eh_frame::merge_map_): Delete. * merge.cc (Object_merge_map::get_or_make_input_merge_map): Pass in and use a Output_section_data instead of a Merge_map. (Object_merge_map::add_mapping): Ditto. (Object_merge_map::get_output_offset): Remove the merge_map argument. (Object_merge_map::is_merge_section_for): Pass in and use a Output_section_data instead of a Merge_map. (Merge_map): Delete. (Output_merge_base::do_output_offset): Use merge_output_offset instead of merge_map_.get_output_offset. (Output_merge_base::do_is_merge_section_for): Delete. (Output_merge_data::do_add_input_section): Use object->add_merge_mapping instead of add_mapping. (Output_merge_string<Char_type>::finalize_merged_data): Ditto. * merge.h (Merge_map): Delete forward declaration. (Object_merge_map::add_mapping): Pass in and use a Output_section_data instead of a Merge_map. (Object_merge_map::get_output_offset): Remove the merge_map argument. (Object_merge_map::is_merge_section_for): Pass in and use a Output_section_data instead of a Merge_map. (Input_merge_map::Object_merge_map::merge_map): Replace with output_data. (Object_merge_map::get_or_make_input_merge_map): Pass in and use a Output_section_data instead of a Merge_map. (Merge_map): Delete. (Output_merge_base::Output_merge_base): Don't initialize merge_map_. (Output_merge_base::do_is_merge_section_for): Delete. (Output_merge_base::add_mapping): Delete. (Output_merge_base::merge_map_): Delete. * object.cc (Relobj::initialize_input_to_output_map): New. (Relobj::initialize_input_to_output_map): New. (Relobj::merge_output_offset): New. (Relobj::is_merge_section_for): New. (Relobj::initialize_input_to_output_map): Instantiate for 32 and 64 bits. * object.h (Relobj::merge_map): Delete. (initialize_input_to_output_map): New. (set_merge_map): Delete. (add_merge_mapping): New. (merge_output_offset): New. (is_merge_section_for): New. * output.cc (Output_section::Input_section::is_merge_section_for): Use object->is_merge_section_for. * output.h (Output_section_data::is_merge_section_for): Delete. (Output_section_data::do_is_merge_section_for): Delete. * reloc.cc (Merged_symbol_value<size>::initialize_input_to_output_map): Use object->initialize_input_to_output_map. (Merged_symbol_value<size>::value_from_output_section): Use object->merge_output_offset.
* Fix crash when processing merge section with entsize of 0.Cary Coutant2015-03-022-0/+10
| | | | | | | | | 2015-02-04 Peter Collingbourne <pcc@google.com> Cary Coutant <ccoutant@google.com> gold/ * output.cc (Output_section::add_merge_input_section): Do not attempt to merge sections with an entsize of 0.
* Fix an internal error in do_print_to_mapfile on Arm.Cary Coutant2015-03-022-0/+10
| | | | | | | | 2015-02-02 Khem Raj <raj.khem@gmail.com> gold/ * attributes.h (class Output_attributes_section_data ): Add do_print_to_mapfile function.
* PowerPC64 GOLD: complain on misaligned _DS relocsAlan Modra2015-02-242-3/+12
| | | | | | | | PR 18010 * powerpc.cc (Powerpc_relocate_functions::addr16_ds): Always complain if value is not a multiple of four. (Target_powerpc::Relocate::relocate): Correct handling of R_POWERPC_GOT_TPREL16 and R_POWERPC_GOT_TPREL16_LO for ppc64.
* Set GOLD_DEFAULT_SIZE to 32 for x32H.J. Lu2015-02-223-0/+7
| | | | | * configure.ac (default_size): Set to 32 for x32. * configure: Regenerated.
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