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2024-01-03Update copyright years.Jakub Jelinek1-1/+1
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-06-28libiberty: copy over .BTF section when using LTOIndu Bhagat1-0/+3
libiberty/ChangeLog: * simple-object.c (handle_lto_debug_sections): Copy over .BTF section.
2021-06-28CTF/BTF debug formatsIndu Bhagat1-0/+3
This commit introduces support for generating CTF debugging information and BTF debugging information from GCC. 2021-06-28 Indu Bhagat <indu.bhagat@oracle.com> David Faust <david.faust@oracle.com> Jose E. Marchesi <jose.marchesi@oracle.com> Weimin Pan <weimin.pan@oracle.com> gcc/ * Makefile.in: Add ctfc.*, ctfout.c and btfout.c files to GTFILES. Add new object files. * common.opt: Add CTF and BTF debug info options. * btfout.c: New file. * ctfc.c: Likewise. * ctfc.h: Likewise. * ctfout.c: Likewise. * dwarf2ctf.c: Likewise. * dwarf2ctf.h: Likewise. * dwarf2cfi.c (dwarf2out_do_frame): Acknowledge CTF_DEBUG and BTF_DEBUG. * dwarf2out.c (dwarf2out_source_line): Likewise. (dwarf2out_finish): Skip emitting DWARF if CTF or BTF are to be generated. (debug_format_do_cu): New function. (dwarf2out_early_finish): Traverse DIEs and emit CTF/BTF for them if requested. Include dwarf2ctf.c. * final.c (dwarf2_debug_info_emitted_p): Acknowledge DWARF-based debug formats. * flag-types.h (enum debug_info_type): Add CTF_DEBUG and BTF_DEBUG. (CTF_DEBUG): New bitmask. (BTF_DEBUG): Likewise. (enum ctf_debug_info_levels): New enum. * gengtype.c (open_base_files): Handle ctfc.h. (main): Handle uint32_t type. * flags.h (btf_debuginfo_p): New definition. (dwarf_based_debuginfo_p): Likewise. * opts.c (debug_type_names): Add entries for CTF and BTF. (btf_debuginfo_p): New function. (dwarf_based_debuginfo_p): Likewise. (common_handle_option): Handle -gctfN and -gbtf options. (set_debug_level): Set CTF_DEBUG, BTF_DEBUG whenever appropriate. * toplev.c (process_options): Inform the user and ignore -gctfLEVEL if frontend is not C. include/ * ctf.h: New file. * btf.h: Likewise. libiberty/ * simple-object.c (handle_lto_debug_sections): Copy over .ctf sections.
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-03-05Keep .GCC.command.line sections of LTO objetcsRichard Biener1-0/+3
This patch is for .GCC.command.line sections in LTO objects to be copied into the final objects as in the following example: [egeyar@localhost lto]$ gcc -flto -O3 demo.c -c -g --record-gcc-command-line [egeyar@localhost lto]$ gcc -flto -O2 demo2.c -c -g --record-gcc-command-line -DFORTIFY=2 [egeyar@localhost lto]$ gcc demo.o demo2.o -o a.out [egeyar@localhost lto]$ readelf -p .GCC.command.line a.out String dump of section '.GCC.command.line': [ 0] 10.0.1 20200227 (experimental) : gcc -flto -O3 demo.c -c -g --record-gcc-command-line [ 56] 10.0.1 20200227 (experimental) : gcc -flto -O2 demo2.c -c -g --record-gcc-command-line -DFORTIFY=2 2020-03-05 Egeyar Bagcioglu <egeyar.bagcioglu@oracle.com> * simple-object.c (handle_lto_debug_sections): Name ".GCC.command.line" among debug sections to be copied over from lto objects.
2020-03-02lto: Also copy .note.gnu.property sectionH.J. Lu1-0/+3
When generating the separate file with LTO debug sections, we should also copy .note.gnu.property section. PR lto/93966 * simple-object.c (handle_lto_debug_sections): Also copy .note.gnu.property section.
2020-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r279813
2019-01-22re PR lto/88422 (collect2.exe: fatal error: lto-wrapper returned 1 exit ↵Nidal Faour1-1/+5
status: file not recognized: file truncated) 2019-01-22 Nidal Faour <nidal.faour@wdc.com> PR lto/88422 * simple-object.c (O_BINARY): Define if not already defined. (simple_object_copy_lto_debug_sections): Create file in binary mode. From-SVN: r268141
2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-05-30simple-object.h (simple_object_copy_lto_debug_sections): Add rename parameter.Jan Hubicka1-11/+34
* simple-object.h (simple_object_copy_lto_debug_sections): Add rename parameter. * simple-object.c (handle_lto_debug_sections): Add rename parameter. (handle_lto_debug_sections_rename): New function. (handle_lto_debug_sections_norename): New function. (simple_object_copy_lto_debug_sections): Add rename parameter. From-SVN: r260956
2018-04-13Fix gcc.dg/debug/pr41893-1.c with Solaris ld (PR lto/81968)Rainer Orth1-0/+5
PR lto/81968 * simple-object.c (handle_lto_debug_sections): Keep .comment section. From-SVN: r259364
2018-01-11re PR lto/81968 (early lto debug objects make Solaris ld SEGV)Richard Biener1-14/+22
2018-01-11 Richard Biener <rguenther@suse.de> Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> PR lto/81968 libiberty/ * simple-object-common.h (struct simple_object_functions): Change copy_lto_debug_sections callback signature. * simple-object-elf.c (SHN_HIRESERVE, SHT_SYMTAB_SHNDX, SHF_INFO_LINK): Add defines. (simple_object_elf_copy_lto_debug_sections): Instead of leaving not to be copied sections empty unnamed SHT_NULL remove them from the target section headers and adjust section reference everywhere. Handle SHN_XINDEX in the symbol table processing properly. * simple-object.c (handle_lto_debug_sections): Change interface to return a modified string and handle renaming of relocation sections. Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> From-SVN: r256528
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-10-18re PR lto/82598 (lto debugobj lacks .note.GNU-stack)Jakub Jelinek1-0/+3
PR lto/82598 * simple-object.c (handle_lto_debug_sections): Copy over also .note.GNU-stack section with unchanged name. * simple-object-elf.c (SHF_EXECINSTR): Define. (simple_object_elf_copy_lto_debug_section): Drop SHF_EXECINSTR bit on .note.GNU-stack section. From-SVN: r253851
2017-08-21re PR go/78628 (GO fails to build a translation unit decl)Richard Biener1-1/+82
2017-08-21 Richard Biener <rguenther@suse.de> include/ * simple-object.h (simple_object_copy_lto_debug_sections): New function. libiberty/ * simple-object-common.h (struct simple_object_functions): Add copy_lto_debug_sections hook. * simple-object.c: Include fcntl.h. (handle_lto_debug_sections): New helper function. (simple_object_copy_lto_debug_sections): New function copying early LTO debug sections to regular debug sections in a new file. (simple_object_start_write): Handle NULL segment_name. * simple-object-coff.c (simple_object_coff_functions): Adjust for not implemented copy_lto_debug_sections hook. * simple-object-mach-o.c (simple_object_mach_o_functions): Likewise. * simple-object-xcoff.c (simple_object_xcoff_functions): Likewise. * simple-object-elf.c (SHT_NULL, SHT_SYMTAB, SHT_RELA, SHT_REL, SHT_GROUP): Add various sectopn header types. (SHF_EXCLUDE): Add flag. (Elf32_External_Sym, Elf64_External_Sym): Add symbol struct. (ELF_ST_BIND, ELF_ST_TYPE, ELF_ST_INFO): Add accessors. (STT_OBJECT, STT_FUNC, STT_TLS, STT_GNU_IFUNC): Add Symbol types. (STV_DEFAULT): Add symbol visibility. (SHN_COMMON): Add special section index name. (struct simple_object_elf_write): New. (simple_object_elf_start_write): Adjust for new private data. (simple_object_elf_write_shdr): Pass in values for all fields we write. (simple_object_elf_write_to_file): Adjust. Copy from recorded section headers if requested. (simple_object_elf_release_write): Release private data. (simple_object_elf_copy_lto_debug_sections): Copy and rename sections as denoted by PFN and all their dependences, symbols and relocations to the empty destination file. (simple_object_elf_functions): Adjust for copy_lto_debug_sections hook. gcc/ * debug.h (struct gcc_debug_hooks): Add die_ref_for_decl and register_external_die hooks. (debug_false_tree_charstarstar_uhwistar): Declare. (debug_nothing_tree_charstar_uhwi): Likewise. * debug.c (do_nothing_debug_hooks): Adjust. (debug_false_tree_charstarstar_uhwistar): New do nothing. (debug_nothing_tree_charstar_uhwi): Likewise. * dbxout.c (dbx_debug_hooks): Adjust. (xcoff_debug_hooks): Likewise. * sdbout.c (sdb_debug_hooks): Likewise. * vmsdbgout.c (vmsdbg_debug_hooks): Likewise. * dwarf2out.c (macinfo_label_base): New global. (dwarf2out_register_external_die): New function for the register_external_die hook. (dwarf2out_die_ref_for_decl): Likewise for die_ref_for_decl. (dwarf2_debug_hooks): Use them. (dwarf2_lineno_debug_hooks): Adjust. (struct die_struct): Add with_offset flag. (DEBUG_LTO_DWO_INFO_SECTION, DEBUG_LTO_INFO_SECTION, DEBUG_LTO_DWO_ABBREV_SECTION, DEBUG_LTO_ABBREV_SECTION, DEBUG_LTO_DWO_MACINFO_SECTION, DEBUG_LTO_MACINFO_SECTION, DEBUG_LTO_DWO_MACRO_SECTION, DEBUG_LTO_MACRO_SECTION, DEBUG_LTO_LINE_SECTION, DEBUG_LTO_DWO_STR_OFFSETS_SECTION, DEBUG_LTO_STR_DWO_SECTION, DEBUG_STR_LTO_SECTION): New macros defining section names for the early LTO debug variants. (reset_indirect_string): New helper. (add_AT_external_die_ref): Helper for dwarf2out_register_external_die. (print_dw_val): Add support for offsetted symbol references. (get_ultimate_context): Split out from is_cxx. (is_cxx): Use get_ultimate_context. (is_fortran): Add decl overload. (compute_comp_unit_symbol): Split out worker from compute_section_prefix. (compute_section_prefix): Call compute_comp_unit_symbol and set comdat_type_p here. (output_die): Skip DIE symbol output for the LTO added one. Handle DIE symbol references with offset. (output_comp_unit): Guard section name mangling properly. For LTO debug sections emit a symbol at the section beginning which we use to refer to its DIEs. (add_abstract_origin_attribute): For DIEs registered via dwarf2out_register_external_die directly refer to the early DIE rather than indirectly through the shadow one we created. Remove obsolete call to dwarf2out_abstract_function for non-function/block origins. (gen_array_type_die): When generating early LTO debug do not emit DW_AT_string_length. (gen_formal_parameter_die): Do not re-create DIEs for PARM_DECLs late when in LTO. As suggested place a gcc_unreachable for the DECL_ABSTRACT_P case. (gen_subprogram_die): Avoid another specification DIE for early built declarations/definitions for the late LTO case. (gen_variable_die): Add type references for late duplicated VLA dies when in late LTO. (gen_inlined_subroutine_die): Do not call dwarf2out_abstract_function, we have the abstract instance already. (process_scope_var): Adjust decl DIE contexts in LTO which first puts them in limbo. (gen_decl_die): Do not generate type DIEs late apart from types for VLAs or for decls we do not yet have a DIE. Do not call dwarf2out_abstract_function late. (dwarf2out_early_global_decl): Make sure to create DIEs for abstract instances of a decl first. (dwarf2out_late_global_decl): Adjust comment. (output_macinfo_op): With multiple macro sections use macinfo_label_base to distinguish labels. (output_macinfo): Likewise. Update macinfo_label_base. Pass in the line info label. (note_variable_value_in_expr): When generating LTO resolve all variable values here by generating DIEs as needed. (init_sections_and_labels): Add early LTO debug flag parameter and generate different sections and names if set. Add generation counter for the labels so we can have multiple of them. (reset_dies): Helper to allow DIEs to be output multiple times. (dwarf2out_finish): When outputting DIEs to the fat part of an LTO object first reset DIEs. (dwarf2out_early_finish): Output early DIEs when generating LTO. (modified_type_die): Check for decl_ultimate_origin being self before recursing. (gen_type_die_with_usage): Likewise. (gen_typedef_die): Allow decl_ultimate_origin being self. (set_decl_abstract_flags): Remove. (set_block_abstract_flags): Likewise. (dwarf2out_abstract_function): Treat the early generated DIEs as the abstract copy and only add DW_AT_inline and DW_AT_artificial here and call set_decl_origin_self. If the DIE has an abstract origin don't do anything. * tree.c (free_lang_data): Build a dummy TRANSLATION_UNIT_DECL if we have none yet (Go fails to build one, PR78628). (variably_modified_type_p): Prevent endless recursion for Ada cyclic pointer types. * lto-streamer-in.c: Include debug.h. (dref_queue): New global. (lto_read_tree_1): Stream in DIE references. (lto_input_tree): Register DIE references. (input_function): Stream DECL_DEBUG_ARGS. * lto-streamer-out.c: Include debug.h. (lto_write_tree_1): Output DIE references. (DFS::DFS_write_tree_body): Follow DECL_ABSTRACT_ORIGIN. Force a TRANSLATION_UNIT_DECL DECL_CONTEXT for file-scope decls. (output_function): Stream DECL_DEBUG_ARGS. * tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers): Stream DECL_ABSTRACT_ORIGIN. * tree-streamer-out.c (write_ts_decl_common_tree_pointers): Likewise. (write_ts_decl_minimal_tree_pointers): Force a TRANSLATION_UNIT_DECL DECL_CONTEXT for file-scope decls. * lto-streamer.h (struct dref_entry): Declare. (dref_queue): Likewise. * cfgexpand.c (pass_expand::execute): Do not call the outlining_inline_function hook here. * lto-wrapper.c (debug_obj): New global. (tool_cleanup): Unlink it if required. (debug_objcopy): New function. (run_gcc): Handle early debug sections in the IL files by extracting them to separate files, partially linkin them and feeding the result back as result to the linker. * config/darwin.h (DEBUG_LTO_INFO_SECTION, DEBUG_LTO_ABBREV_SECTION, DEBUG_LTO_MACINFO_SECTION, DEBUG_LTO_LINE_SECTION, DEBUG_STR_LTO_SECTION, DEBUG_LTO_MACRO_SECTION): Put early debug sections into a separate segment. * config/darwin.c (darwin_asm_named_section): Handle __GNU_DWARF_LTO segments. (darwin_asm_dwarf_section): Likewise. (darwin_asm_output_dwarf_offset): Likewise. * config/i386/i386.c (make_resolver_func): Set DECL_IGNORED_P. lto/ * lto.c (unify_scc): Truncate DIE reference queue for dropped SCCs. (lto_read_decls): Process TRANSLATION_UNIT_DECLs. Remove TYPE_DECL debug processing, register DIE references from prevailing SCCs with the debug machinery. (lto_section_with_id): Handle LTO debug sections. libstdc++/ * testsuite/libstdc++-prettyprinters/prettyprinters.exp: Run all tests with -flto as well if supported. testsuite/ * c-c++-common/asan/global-overflow-1.c: Adjust diagnostic location regex to handle the LTO case. * c-c++-common/asan/heap-overflow-1.c: Likewise. * c-c++-common/asan/misalign-1.c: Likewise. * c-c++-common/asan/misalign-2.c: Likewise. * c-c++-common/asan/null-deref-1.c: Likewise. * c-c++-common/asan/stack-overflow-1.c: Likewise. * c-c++-common/asan/strncpy-overflow-1.c: Likewise. * c-c++-common/asan/use-after-free-1.c: Likewise. * c-c++-common/asan/alloca_big_alignment.c: Likewise. * c-c++-common/asan/alloca_detect_custom_size.c: Likewise. * c-c++-common/asan/alloca_overflow_partial.c: Likewise. * c-c++-common/asan/alloca_overflow_right.c: Likewise. * c-c++-common/asan/alloca_underflow_left.c: Likewise. * g++.dg/asan/large-func-test-1.C: Likewise. * gfortran.dg/save_6.f90: Add -flto -g variant of save_5.f90. From-SVN: r251220
2017-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r244052
2014-04-01simple-object.c (simple_object_internal_write): Handle EINTR and short writes.Richard Biener1-8/+17
2014-04-01 Richard Biener <rguenther@suse.de> libiberty/ * simple-object.c (simple_object_internal_write): Handle EINTR and short writes. From-SVN: r208972
2014-03-28simple-object.c (simple_object_internal_read): Handle EINTR and short reads.Richard Biener1-8/+17
2014-03-28 Richard Biener <rguenther@suse.de> libiberty/ * simple-object.c (simple_object_internal_read): Handle EINTR and short reads. lto-plugin/ * lto-plugin.c (process_symtab): Handle EINTR and short reads. From-SVN: r208898
2013-01-01simple-object-xcoff.c: New file.David Edelsohn1-1/+2
* simple-object-xcoff.c: New file. * Makefile.in: Add it to build machinery. * simple-object-common.h (simple_object_xcoff_functions): Declare. * simple-object.c (format_functions): Add simple_object_xcoff_functions. From-SVN: r194774
2010-11-17simple-object.h (simple_object_attributes_merge): Declare, replacing ↵Ian Lance Taylor1-7/+6
simple_object_attributes_compare. include/: * simple-object.h (simple_object_attributes_merge): Declare, replacing simple_object_attributes_compare. libiberty/: * simple-object.c (simple_object_attributes_merge): Rename from simple_object_attributes_compare. Call merge field. * simple-object-common.h (struct simple_object_functions): Rename attributes_compare field to attribute_merge. * simple-object-elf.c (EM_SPARC): Define. (EM_SPARC32PLUS): Define. (simple_object_elf_attributes_merge): Renamed from simple_object_elf_attributes_compare. Permit EM_SPARC and EM_SPARC32PLUS objects to be merged. (simple_object_elf_functions): Update function name. * simple-object-coff.c (simple_object_coff_attributes_merge): Rename from simple_object_coff_attributes_compare. (simple_object_coff_functions): Update function name. * simple-object-mach-o.c (simple_object_mach_o_attributes_merge): Renamed from simple_object_mach_o_attributes_compare. (simple_object_mach_o_functions): Update function name. gcc/lto/: * lto-object.c (lto_obj_file_open): Call simple_object_attributes_merge rather than simple_object_attributes_compare. From-SVN: r166848
2010-11-02simple-object.h: New file.Ian Lance Taylor1-0/+423
include/: * simple-object.h: New file. libiberty/: * simple-object.c: New file. * simple-object-common.h: New file. * simple-object-elf.c: New file. * simple-object-mach-o.c: New file. * simple-object-coff.c: New file. * simple-object.txh: New file. * configure.ac: Add AC_TYPE_SSIZE_T. * Makefile.in: Rebuild dependencies. (CFILES): Add simple-object.c, simple-object-coff, simple-object-elf.c, and simple-object-mach-o.c. (REQUIRED_OFILES): Add corresponding object files. * configure: Rebuild. * config.in: Rebuild. * functions.texi: Rebuild. Co-Authored-By: Dave Korn <dave.korn.cygwin@gmail.com> Co-Authored-By: Iain Sandoe <iains@gcc.gnu.org> From-SVN: r166185
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