aboutsummaryrefslogtreecommitdiff
path: root/gdb
AgeCommit message (Collapse)AuthorFilesLines
2021-03-24New target methods for memory tagging supportLuis Machado5-0/+215
This patch starts adding some of the generic pieces to accomodate memory tagging. We have three new target methods: - supports_memory_tagging: Checks if the target supports memory tagging. This defaults to false for targets that don't support memory tagging. - fetch_memtags: Fetches the allocation tags associated with a particular memory range [address, address + length). The default is to return 0 without returning any tags. This should only be called if memory tagging is supported. - store_memtags: Stores a set of allocation tags for a particular memory range [address, address + length). The default is to return 0. This should only be called if memory tagging is supported. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * remote.c (remote_target) <supports_memory_tagging>: New method override. <fetch_memtags>: New method override. <store_memtags>: New method override. (remote_target::supports_memory_tagging): New method. (remote_target::fetch_memtags): New method. (remote_target::store_memtags): New method. * target-delegates.c: Regenerate. * target.h (struct target_ops) <supports_memory_tagging>: New virtual method. <fetch_memtags>: New virtual method. <store_memtags>: New virtual method. (target_supports_memory_tagging): Define. (target_fetch_memtags): Define. (target_store_memtags): Define. * target-debug.h (target_debug_print_size_t) (target_debug_print_const_gdb_byte_vector_r) (target_debug_print_gdb_byte_vector_r): New functions.
2021-03-23gdb: remote target_longnameSimon Marchi2-1/+4
I noticed it was unused. gdb/ChangeLog: * target.h (target_longname): Remove. Change-Id: Id4f514ea038a6d8d40e11179db587b11793cbbd8
2021-03-23gdb: remove target_is_pushed free functionSimon Marchi10-29/+24
Same principle as the previous patches. gdb/ChangeLog: * target.h (target_is_pushed): Remove, update callers to use inferior::target_is_pushed instead. * target.c (target_is_pushed): Remove. Change-Id: I9862e6205acc65672da807cbe4b46cde009e7b9d
2021-03-23gdb: remove push_target free functionsSimon Marchi30-61/+54
Same as the previous patch, but for the push_target functions. The implementation of the move variant is moved to a new overload of inferior::push_target. gdb/ChangeLog: * target.h (push_target): Remove, update callers to use inferior::push_target. * target.c (push_target): Remove. * inferior.h (class inferior) <push_target>: New overload. Change-Id: I5a95496666278b8f3965e5e8aecb76f54a97c185
2021-03-23gdb: remove unpush_target free functionSimon Marchi17-35/+36
unpush_target unpushes the passed-in target from the current inferior's target stack. Calling it is therefore an implicit dependency on the current global inferior. Remove that function and make the callers use the inferior::unpush_target method directly. This sometimes allows using the inferior from the context rather than the global current inferior. target_unpusher::operator() now needs to be implemented in target.c, otherwise target.h and inferior.h both need to include each other, and that wouldn't work. gdb/ChangeLog: * target.h (unpush_target): Remove, update all callers to use `inferior::unpush_target` instead. (struct target_unpusher) <operator()>: Just declare. * target.c (unpush_target): Remove. (target_unpusher::operator()): New. Change-Id: Ia5172dfb3f373e0a75b991885b50322ca2142a8c
2021-03-22gdb: handle invalid DWARF when compilation unit is missingAndrew Burgess5-1/+134
Replace an abort call in process_psymtab_comp_unit with a real error, and add a test to cover this case. The case is question is when badly formed DWARF is missing a DW_TAG_compile_unit, DW_TAG_partial_unit, or DW_TAG_type_unit as its top level tag. I then tested with --target_board=readnow and added additional code to also validate the top-level tag in this case. I added an assert that would trigger for the readnow case before I added the fix. I suspect there's lots of places where badly formed DWARF could result in the builder being nullptr when it shouldn't be, but I only added this one assert, as this is the one that would have helped me in this case. gdb/ChangeLog: * dwarf2/read.c (process_psymtab_comp_unit): Replace abort with an error. (process_full_comp_unit): Validate the top-level tag before processing the first DIE. (read_func_scope): Ensure we have a valid builder. gdb/testsuite/ChangeLog: * gdb.dwarf2/dw2-missing-cu-tag.c: New file. * gdb.dwarf2/dw2-missing-cu-tag.exp: New file.
2021-03-22gdb/objc: make objc_demangle a member function of objc_languageAndrew Burgess3-73/+80
Makes the objc_demangle helper function a member function of objc_language (by renaming it to be the demangle_symbol member function). I also fixed some of the obvious coding standard violations in obj_demangle, so the '&&' operators are now at the start of the line, not the end. Comparison to nullptr are now made explicit, as are comparisons to the null character. There should be no user visible changes after this commit. gdb/ChangeLog: * objc-lang.c (objc_demangle): Renamed to objc_language::demangle_symbol, and moved later in the file. (objc_language::sniff_from_mangled_name): Call demangle_symbol member function. (objc_language::demangle_symbol): Defined outside of class declaration. The definition is the old objc_demangle with NULL changed to nullptr, and if conditions relating to nullptr pointers or null character checks made explicit. * objc-lang.h (objc_demangle): Delete declaration.
2021-03-22Add startswith function and use it instead of CONST_STRNEQ.Martin Liska2-3/+8
bfd/ChangeLog: * bfd-in.h (startswith): Add startswith function. (CONST_STRNEQ): Remove. * bfd-in2.h (startswith): Regenerate with make headers. * archive.c (bfd_slurp_armap): Replace usage of CONST_STRNEQ with startswith. (_bfd_slurp_extended_name_table): Likewise. * archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise. * bfd.c (bfd_get_sign_extend_vma): Likewise. (bfd_convert_section_size): Likewise. (bfd_convert_section_contents): Likewise. * coff-stgo32.c (go32exe_create_stub): Likewise. (go32exe_check_format): Likewise. * coffcode.h (styp_to_sec_flags): Likewise. (GNU_DEBUGALTLINK): Likewise. * coffgen.c (_bfd_coff_section_already_linked): Likewise. (coff_gc_sweep): Likewise. (bfd_coff_gc_sections): Likewise. * cofflink.c (coff_link_add_symbols): Likewise. (process_embedded_commands): Likewise. * compress.c (bfd_is_section_compressed_with_header): Likewise. (bfd_init_section_decompress_status): Likewise. * dwarf2.c (find_debug_info): Likewise. (place_sections): Likewise. * ecoff.c (_bfd_ecoff_slurp_armap): Likewise. * elf-m10300.c (_bfd_mn10300_elf_size_dynamic_sections): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Likewise. (assign_section_numbers): Likewise. (elfcore_grok_win32pstatus): Likewise. * elf32-arm.c (cmse_scan): Likewise. (elf32_arm_gc_mark_extra_sections): Likewise. (elf32_arm_size_dynamic_sections): Likewise. (is_arm_elf_unwind_section_name): Likewise. * elf32-bfin.c (bfin_size_dynamic_sections): Likewise. * elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise. * elf32-cris.c (elf_cris_size_dynamic_sections): Likewise. * elf32-csky.c (csky_elf_size_dynamic_sections): Likewise. * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise. * elf32-iq2000.c (iq2000_elf_check_relocs): Likewise. * elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise. * elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise. * elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise. * elf32-metag.c (elf_metag_size_dynamic_sections): Likewise. * elf32-msp430.c (msp430_elf_relax_delete_bytes): Likewise. * elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise. * elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-sh.c (sh_elf_size_dynamic_sections): Likewise. * elf32-tic6x.c (is_tic6x_elf_unwind_section_name): Likewise. (elf32_tic6x_size_dynamic_sections): Likewise. * elf32-vax.c (elf_vax_size_dynamic_sections): Likewise. * elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise. (xtensa_is_insntable_section): Likewise. (xtensa_is_littable_section): Likewise. (xtensa_is_proptable_section): Likewise. (xtensa_property_section_name): Likewise. (xtensa_callback_required_dependence): Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise. * elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise. * elf64-ia64-vms.c (is_unwind_section_name): Likewise. (get_reloc_section): Likewise. (elf64_ia64_size_dynamic_sections): Likewise. (elf64_ia64_object_p): Likewise. * elf64-mmix.c (mmix_elf_add_symbol_hook): Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections): Likewise. * elflink.c (elf_link_add_object_symbols): Likewise. (_bfd_elf_gc_mark_extra_sections): Likewise. (bfd_elf_parse_eh_frame_entries): Likewise. (_bfd_elf_section_already_linked): Likewise. * elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise. * elfnn-ia64.c (is_unwind_section_name): Likewise. (elfNN_ia64_size_dynamic_sections): Likewise. (elfNN_ia64_object_p): Likewise. * elfxx-mips.c (FN_STUB_P): Likewise. (CALL_STUB_P): Likewise. (CALL_FP_STUB_P): Likewise. (_bfd_mips_elf_section_from_shdr): Likewise. (_bfd_mips_elf_fake_sections): Likewise. (_bfd_mips_elf_size_dynamic_sections): Likewise. (_bfd_mips_final_write_processing): Likewise. (_bfd_mips_elf_final_link): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise. * elfxx-x86.c (elf_i386_is_reloc_section): Likewise. (elf_x86_64_is_reloc_section): Likewise. * hpux-core.c (thread_section_p): Likewise. * libcoff.h (bfd_pei_p): Likewise. * linker.c (REAL): Likewise. (unwrap_hash_lookup): Likewise. (_bfd_generic_link_add_one_symbol): Likewise. * mmo.c (mmo_internal_write_section): Likewise. * osf-core.c (osf_core_core_file_p): Likewise. * pef.c (bfd_pef_print_symbol): Likewise. * pei-x86_64.c (pex64_print_all_pdata_sections): Likewise. * som.c (som_slurp_symbol_table): Likewise. (som_slurp_armap): Likewise. * wasm-module.c (wasm_compute_custom_section_file_position): Likewise. binutils/ChangeLog: * dlltool.c (scan_drectve_symbols): Replace usage of CONST_STRNEQ with startswith. * emul_aix.c (ar_emul_aix_parse_arg): Likewise. * objcopy.c (is_mergeable_note_section): Likewise. * objdump.c (dump_dwarf_section): Likewise. * prdbg.c (pr_method_type): Likewise. (pr_class_baseclass): Likewise. (tg_class_baseclass): Likewise. * readelf.c (process_lto_symbol_tables): Likewise. * stabs.c (ULLHIGH): Likewise. (parse_stab_argtypes): Likewise. (stab_demangle_function_name): Likewise. gas/ChangeLog: * config/tc-i386.c (md_parse_option): Replace usage of CONST_STRNEQ with startswith. (x86_64_section_word): Likewise. * config/tc-sparc.c (md_parse_option): Likewise. gdb/ChangeLog: * arm-tdep.c (show_disassembly_style_sfunc): Replace usage of CONST_STRNEQ with startswith. (_initialize_arm_tdep): Likewise. ld/ChangeLog: * emultempl/aix.em: Replace usage of CONST_STRNEQ with startswith. * emultempl/beos.em: Likewise. * emultempl/elf.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/xtensaelf.em: Likewise. * ldctor.c (ctor_prio): Likewise. * ldelf.c (ldelf_try_needed): Likewise. (ldelf_parse_ld_so_conf): Likewise. (ldelf_after_open): Likewise. (output_rel_find): Likewise. (ldelf_place_orphan): Likewise. * ldfile.c (ldfile_add_library_path): Likewise. * ldlang.c (lang_add_input_file): Likewise. * ldmain.c (get_sysroot): Likewise. (get_emulation): Likewise. (add_archive_element): Likewise. * ldwrite.c (unsplittable_name): Likewise. (clone_section): Likewise. * lexsup.c (parse_args): Likewise. * pe-dll.c (is_import): Likewise. (pe_implied_import_dll): Likewise. opcodes/ChangeLog: * aarch64-dis.c (parse_aarch64_dis_option): Replace usage of CONST_STRNEQ with startswith. * arc-dis.c (parse_option): Likewise. * arm-dis.c (parse_arm_disassembler_options): Likewise. * cris-dis.c (print_with_operands): Likewise. * h8300-dis.c (bfd_h8_disassemble): Likewise. * i386-dis.c (print_insn): Likewise. * ia64-gen.c (fetch_insn_class): Likewise. (parse_resource_users): Likewise. (in_iclass): Likewise. (lookup_specifier): Likewise. (insert_opcode_dependencies): Likewise. * mips-dis.c (parse_mips_ase_option): Likewise. (parse_mips_dis_option): Likewise. * s390-dis.c (disassemble_init_s390): Likewise. * wasm32-dis.c (parse_wasm32_disassembler_options): Likewise.
2021-03-22gdb/testsuite: use the correct .debug_str section name for DW_FORM_strpAndrew Burgess4-1/+137
When handling DWARF attributes of the form DW_FORM_strp the strings should be placed in the .debug_str section, not .debug_string as they currently are by the DWARF assembler (in lib/dwarf.exp). I've added a test. This is as much to test the DWARF generator as it is to test GDB as GCC makes frequent use of DW_FORM_strp so we can be pretty sure this part of GDB is already well tested. gdb/testsuite/ChangeLog: * gdb.dwarf2/dw2-using-debug-str.c: New file. * gdb.dwarf2/dw2-using-debug-str.exp: New file. * lib/dwarf.exp (Dwarf::DW_FORM_strp): Create .debug_str section, not .debug_string.
2021-03-20Allow multiple partial symbol readers per objfileTom Tromey13-61/+67
This patch finally changes gdb so that an objfile can have multiple sources of partial symbols (or mixed partial symbols and other kinds of indices). This is done by having each symbol reader create its own psymbol_functions object and add it to the 'qf' list in the objfile. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * xcoffread.c (xcoff_initial_scan): Create partial symtabs. * symfile.c (syms_from_objfile_1, reread_symbols): Update. * psymtab.h (make_psymbol_functions): Don't declare. * psymtab.c (make_psymbol_functions): Remove. (maintenance_print_psymbols): Update. * psympriv.h (struct psymbol_functions): Add no-argument constructor. * objfiles.h (struct objfile) <reset_psymtabs>: Remove. <partial_symtabs>: Remove. * mdebugread.c (mdebug_build_psymtabs): Create partial symtabs. * elfread.c (read_partial_symbols): Update. (elf_symfile_read): Remove check for existing partial symbols. Don't clear "qf". * dwarf2/read.c (dwarf2_has_info): Remove check for existing partial symbols. (dwarf2_build_psymtabs): Add psymbol_functions parameter. Create partial symtabs. * dwarf2/public.h (dwarf2_build_psymtabs): Add psymbol_functions parameter. * dbxread.c (dbx_symfile_read): Create partial symtabs. * ctfread.c (elfctf_build_psymtabs): Create partial symtabs.
2021-03-20Switch objfile to hold a list of psymbol readersTom Tromey8-262/+337
This changes objfile::qf to be a forward_list, and then updates all the uses to iterate over the list. Note that there is still only ever a single element in the list; this is handled by clearing the list whenever an object is added. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_build_psymtabs): Update. * symfile.c (syms_from_objfile_1, reread_symbols): Update. * symfile-debug.c (objfile::has_partial_symbols) (objfile::find_last_source_symtab) (objfile::forget_cached_source_info) (objfile::map_symtabs_matching_filename, objfile::lookup_symbol) (objfile::print_stats, objfile::dump) (objfile::expand_symtabs_for_function) (objfile::expand_all_symtabs) (objfile::expand_symtabs_with_fullname) (objfile::map_matching_symbols) (objfile::expand_symtabs_matching) (objfile::find_pc_sect_compunit_symtab) (objfile::map_symbol_filenames) (objfile::find_compunit_symtab_by_address) (objfile::lookup_global_symbol_language) (objfile::require_partial_symbols): Update. * psymtab.c (maintenance_print_psymbols) (maintenance_info_psymtabs, maintenance_check_psymtabs): Update. * objfiles.h (struct objfile) <qf>: Now a forward_list. * objfiles.c (objfile_relocate1): Update. * elfread.c (elf_symfile_read): Update.
2021-03-20Remove objfile::psymtabsTom Tromey2-8/+4
The method objfile::psymtabs is no longer used and can be removed. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * objfiles.h (struct objfile) <psymtabs>: Remove method.
2021-03-20Change count_psyms to be a method on psymbol_functionsTom Tromey3-4/+14
This removes a use of objfile->psymtabs by changing count_psyms to be a method on psymbol_functions. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * psymtab.c (psymbol_functions::count_psyms): Rename. (psymbol_functions::print_stats): Update. * psympriv.h (struct psymbol_functions) <count_psyms>: Declare method.
2021-03-20Remove last objfile partial_symtab references from psymtab.cTom Tromey3-100/+143
This removes the last references to the partial_symtab via the objfile from psymtab.c. require_partial_symbols is now a method on psymbol_functions, and maintenance_print_psymbols is changed to use dynamic_cast to verify that it is examining partial symbols. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * psymtab.c (psymbol_functions::require_partial_symbols): Rename. (psymbol_functions::find_pc_sect_psymtab): Rename. (psymbol_functions::find_pc_sect_compunit_symtab) (maintenance_print_psymbols, maintenance_check_psymtabs): Update. * psympriv.h (struct psymbol_functions) <require_partial_symbols>: Declare new method. <get_partial_symtabs, find_pc_sect_psymtab>: Likewise.
2021-03-20Add partial_symtabs parameter to psymtab construction functionsTom Tromey9-107/+206
This adds a partial_symtabs parameter to the psymtab constructors and to add_psymbol. This helps with the overall project of removing the partial symtabs from the objfile. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * xcoffread.c (xcoff_start_psymtab): Add partial_symtabs parameter. (xcoff_end_psymtab, scan_xcoff_symtab): Update. * psymtab.c (partial_symtab::partial_symtab): Add partial_symtabs parameter. (add_psymbol_to_bcache): Remove. (partial_symtab::add_psymbol): Add partial_symtabs parameter. (partial_symtab::add_psymbol, partial_symtab::partial_symtab): Likewise. * psympriv.h (partial_symtab): Add partial_symtabs parameter. <add_psymbol>: Likewise. (standard_psymtab, legacy_psymtab): Likewise. * mdebugread.c (parse_partial_symbols): Update. (handle_psymbol_enumerators): Add partial_symtabs parameter. (handle_psymbol_enumerators): Update. (new_psymtab): Add partial_symtabs parameter. * dwarf2/read.h (dwarf2_psymtab): Add partial_symtabs parameter. * dwarf2/read.c (dwarf2_include_psymtab): Add partial_symtabs parameter. (dwarf2_create_include_psymtab): Add partial_symtabs parameter. (create_partial_symtab, add_partial_symbol, dwarf_decode_lines): Update. * dbxread.c (read_dbx_symtab): Update. (start_psymtab): Add partial_symtabs parameter. (dbx_end_psymtab): Update. * ctfread.c (struct ctf_context) <partial_symtabs>: New member. (ctf_psymtab): Add partial_symtabs parameter. (create_partial_symtab, ctf_psymtab_type_cb, ctf_psymtab_var_cb): Update. (scan_partial_symbols): Add partial_symtabs parameter. (scan_partial_symbols, elfctf_build_psymtabs) (ctf_psymtab_add_enums): Update.
2021-03-20Introduce objfile::require_partial_symbolsTom Tromey6-49/+75
This adds a new method, objfile::require_partial_symbols. This reuses most of the code from the old function in psymtab.c. That function is now made static, and simplified. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symfile.c (read_symbols): Use objfile method. * symfile-debug.c (objfile::require_partial_symbols): New method. * psymtab.h (require_partial_symbols): Don't declare. * psymtab.c (require_partial_symbols): Use objfile method. Now static. (psymbol_functions::map_symtabs_matching_filename, OBJFILE) (psymbol_functions::lookup_symbol) (psymbol_functions::lookup_global_symbol_language) (psymbol_functions::find_last_source_symtab) (psymbol_functions::forget_cached_source_info) (psymbol_functions::print_stats) (psymbol_functions::expand_symtabs_for_function) (psymbol_functions::expand_all_symtabs) (psymbol_functions::expand_symtabs_with_fullname) (psymbol_functions::map_symbol_filenames) (psymbol_functions::map_matching_symbols) (psymbol_functions::expand_symtabs_matching) (psymbol_functions::find_compunit_symtab_by_address) (maintenance_print_psymbols, maintenance_info_psymtabs) (maintenance_check_psymtabs): Update. * objfiles.h (struct objfile) <require_partial_symbols>: Declare new method.
2021-03-20Remove sym_fns::sym_read_psymbolsTom Tromey11-61/+59
Partial symbols are read via the sym_fns::sym_read_psymbols function pointer. In order to separate the partial symbols from the objfile, this must instead be done via a virtual method on quick_symbol_functions. This patch implements this change. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * xcoffread.c (xcoff_sym_fns): Update. * symfile.h (struct sym_fns) <sym_read_psymbols>: Remove. * symfile-debug.c (objfile::has_partial_symbols): Use can_lazily_read_symbols. (debug_sym_read_psymbols): Remove. (debug_sym_fns, install_symfile_debug_logging): Update. * quick-symbol.h (struct quick_symbol_functions) <can_lazily_read_symbols, read_partial_symbols>: New methods. * psymtab.c (require_partial_symbols): Use new 'qf' methods. * mipsread.c (ecoff_sym_fns): Update. * machoread.c (macho_sym_fns): Update. * elfread.c (struct lazy_dwarf_reader): New. (elf_symfile_read): Update. (read_psyms): Now a method of lazy_dwarf_reader. (elf_sym_fns): Update. (elf_sym_fns_lazy_psyms): Remove. * dbxread.c (aout_sym_fns): Update. * coffread.c (coff_sym_fns): Update.
2021-03-20Rearrange psymtab_storage constructionTom Tromey3-3/+9
This changes objfile so that it doesn't construct a psymtab_storage object until the psymtab functions are installed. It also applies a similar treatment to reread_symbols. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symfile.c (syms_from_objfile_1): Call reset_psymtabs. (reread_symbols): Move reset_psymtabs call later. * objfiles.c (objfile::objfile): Don't initialize partial_symtabs.
2021-03-20Attach partial symtab storage to psymbol_functionsTom Tromey6-24/+76
Currently, the storage for partial symtabs is attached to the objfile. Ultimately, though, this direct assocation will be removed, and the storage will be owned by the psymbol_functions object. This patch is a step toward this goal. The storage is already managed as a shared_ptr, to enable cross-objfile sharing, so this adds a reference from the psymbol_functions, and changes some code in psymtab.c to use this reference instead. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_build_psymtabs): Call set_partial_symtabs. * symfile.c (syms_from_objfile_1, reread_symbols): Update. * psymtab.h (make_psymbol_functions): Add partial_symtabs parameter. * psymtab.c (find_pc_sect_psymtab): Add partial_symtabs parameter. (psymbol_functions::find_pc_sect_compunit_symtab) (psymbol_functions::print_stats, psymbol_functions::dump) (psymbol_functions::has_symbols): Update. (make_psymbol_functions, dump_psymtab_addrmap): Add partial_symtabs parameter. (maintenance_print_psymbols): Update. (psymbol_functions::expand_symtabs_matching): Update. * psympriv.h (struct psymbol_functions): Add constructor. <m_partial_symtabs>: New member. <set_partial_symtabs>: New method.
2021-03-20Reference psymtabs via per_bfd in DWARF readerTom Tromey2-17/+32
This changes the DWARF reader to reference the psymtabs via the per_bfd object, rather than via the objfile. This helps isolate the partial symtabs from the objfile. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_create_include_psymtab): Add per_bfd parameter. (process_psymtab_comp_unit_reader) (build_type_psymtab_dependencies, dwarf2_build_psymtabs_hard) (add_partial_subprogram, dwarf2_ranges_read, dwarf_decode_lines): Reference psymtabs via per_bfd.
2021-03-20Change how DWARF index writer finds address mapTom Tromey2-11/+19
This changes the DWARF index writer to find the psymtab address map in the per_bfd object, rather than go via the objfile. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/index-write.c (struct addrmap_index_data) <objfile>: Remove. (add_address_entry): Remove objfile parameter. (add_address_entry_worker): Update. (write_address_map): Replace objfile parameter with per_bfd. (write_gdbindex, write_psymtabs_to_index): Update.
2021-03-20Move psymtab statistics printing to psymtab.cTom Tromey11-60/+84
This moves all the psymtab statistics printing code form symmisc.c to psymtab.c. This changes the formatting of the output a little, but considering that it is a maint command (and, I assume, a rarely used one), this seems fine to me. This change helps further dissociate the psymtab from the objfile. In the end there will be no direct connect -- only via the quick_symbol_functions interface. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_base_index_functions::print_stats): Add print_bcache parameter. * symfile-debug.c (objfile::print_stats): Add print_bcache parameter. * quick-symbol.h (struct quick_symbol_functions) <print_stats>: Add print_bcache parameter. * symmisc.c (print_symbol_bcache_statistics, count_psyms): Move code to psymtab.c. (print_objfile_statistics): Move psymtab code to psymtab.c. * psymtab.c (count_psyms): Move from symmisc.c. (psymbol_functions::print_stats): Print partial symbol and bcache statistics. Add print_bcache parameter. * objfiles.h (print_symbol_bcache_statistics): Don't declare. (struct objfile) <print_stats>: Add print_bcache parameter. * maint.c (maintenance_print_statistics): Update. gdb/testsuite/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * gdb.base/maint.exp: Update "maint print statistics" output.
2021-03-20Change how DWARF indices use addrmapTom Tromey3-26/+32
Currently the DWARF index readers reuse the objfile's partial symbol table in order to store an addrmap. We're going to be remove the partial symbol object, so this patch changes the DWARF reader to store this addrmap in the per_bfd object. This object is chosen, rather than the quick_symbol_functions subclass, because the addrmap can be shared across objfiles. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.h (struct dwarf2_per_bfd) <psymtabs_addrmap>: New member. * dwarf2/read.c (create_addrmap_from_index) (create_addrmap_from_aranges): Set per_bfd addrmap. (dwarf2_read_gdb_index): Don't set partial_symtabs. (dwarf2_base_index_functions::find_pc_sect_compunit_symtab): Use per_bfd addrmap. (dwarf2_read_debug_names): Don't set partial_symtabs. (dwarf2_initialize_objfile): Likewise.
2021-03-20Set per_bfd->partial_symtabs earlierTom Tromey2-6/+11
dwarf2_build_psymtabs sets per_bfd->partial_symtabs at its end, in order to facilitate sharing. However, in order to diassociate partial symtabs from the objfile, we want to change the DWARF reader to reference partial symtabs via the per_bfd. So, we want to set this reference before reading psymtabs. This is safe to do because the assignment is done unconditionally. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * dwarf2/read.c (dwarf2_build_psymtabs): Set partial_symtabs earlier.
2021-03-20Do not pass objfile to psymtab_discarderTom Tromey3-10/+17
This changes the psymtab_discarder to not assume that partial symtabs are attached to the objfile. Instead, a psymtab_storage object is passed directly to it. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * psympriv.h (psymtab_discarder): Take psymtab_storage parameter. (~psymtab_discarder, keep): Update. <m_objfile>: Remove. <m_partial_symtabs>: New member. * dwarf2/read.c (dwarf2_build_psymtabs): Update.
2021-03-20Change how some psymbol readers access the psymtab storageTom Tromey5-27/+59
Currently, all psymbol readers access the psymtab storage via the objfile. This is done directly at any spot requiring the storage. In order to move psymbols out of the objfile, the psymtab_storage must be passed in explicitly. This patch consolidates the access of the storage in a single place in these readers, updating various functions to pass the storage object around. "Hidden" uses, like "objfile->psymtabs ()", are also updated. The DWARF reader is not yet touched. That requires more complicated changes. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * xcoffread.c (xcoff_end_psymtab): Add partial_symtabs parameter. (xcoff_end_psymtab): Update. (scan_xcoff_symtab): Add partial_symtabs parameter. (xcoff_initial_scan): Update. * stabsread.h (dbx_end_psymtab): Add partial_symtabs parameter. * mdebugread.c (mdebug_build_psymtabs): Update. (parse_partial_symbols): Add partial_symtabs parameter. * dbxread.c (dbx_symfile_read): Update. (read_dbx_symtab): Add partial_symtabs parameter. (read_dbx_symtab): Update. (dbx_end_psymtab): Add partial_symtabs parameter.
2021-03-20Move psymbol_map out of objfileTom Tromey6-27/+60
objfile::psymbol_map is used to implement a Rust feature. It is currently specific to partial symbols -- it isn't used by the DWARF indices. This patch moves it out of objfile and into psymbol_functions, adding a new method to quick_symbol_functions to handle the clearing case. This is needed because the map holds unrelocated addresses. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * quick-symbol.h (struct quick_symbol_functions) <relocated>: New method. * psymtab.h (struct psymbol_functions) <relocated>: New method. <fill_psymbol_map>: Declare method. <m_psymbol_map>: New member. * psymtab.c (psymbol_functions::fill_psymbol_map): Rename. (psymbol_functions::find_compunit_symtab_by_address): Update. * objfiles.h (reset_psymtabs): Don't clear psymbol_map. (struct objfile) <psymbol_map>: Remove. * objfiles.c (objfile_relocate1): Update.
2021-03-20Convert quick_symbol_functions to use methodsTom Tromey11-191/+416
This changes quick_symbol_functions to be a base class with pure virtual methods, rather than a struct holding function pointers. Then, objfile is changed to hold a unique_ptr to an instance of this class. struct psymbol_functions is put into psympriv.h, and not psymtab.c, because that is convenient later in the series. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * psympriv.h (struct psymbol_functions): New. * symfile.c (syms_from_objfile_1, reread_symbols): Update. * symfile-debug.c (objfile::find_compunit_symtab_by_address) (objfile::lookup_global_symbol_language): Update. * quick-symbol.h (struct quick_symbol_functions): Convert function pointers to methods. Add virtual destructor. (quick_symbol_functions_up): New typedef. * psymtab.h (psym_functions, dwarf2_gdb_index_functions) (dwarf2_debug_names_functions): Don't declare. (make_psymbol_functions): Declare. * psymtab.c (psymbol_functions::map_symtabs_matching_filename) (psymbol_functions::find_pc_sect_compunit_symtab) (psymbol_functions::lookup_symbol) (psymbol_functions::lookup_global_symbol_language) (psymbol_functions::find_last_source_symtab) (psymbol_functions::forget_cached_source_info) (psymbol_functions::print_stats, psymbol_functions::dump) (psymbol_functions::expand_symtabs_for_function) (psymbol_functions::expand_all_symtabs) (psymbol_functions::expand_symtabs_with_fullname) (psymbol_functions::map_symbol_filenames) (psymbol_functions::map_matching_symbols) (psymbol_functions::expand_symtabs_matching) (psymbol_functions::has_symbols) (psymbol_functions::find_compunit_symtab_by_address): Rename. (psym_functions): Remove. (make_psymbol_functions): New function. * objfiles.h (struct objfile) <qf>: Change type. * elfread.c (elf_symfile_read): Update. * dwarf2/read.c (struct dwarf2_base_index_functions) (struct dwarf2_gdb_index, struct dwarf2_debug_names_index): New. (make_dwarf_gdb_index, make_dwarf_debug_names): New functions. (dwarf2_base_index_functions::find_last_source_symtab) (dwarf2_base_index_functions::forget_cached_source_info) (dwarf2_base_index_functions::map_symtabs_matching_filename) (dwarf2_gdb_index::lookup_symbol) (dwarf2_base_index_functions::print_stats) (dwarf2_gdb_index::dump) (dwarf2_gdb_index::expand_symtabs_for_function) (dwarf2_base_index_functions::expand_all_symtabs) (dwarf2_base_index_functions::expand_symtabs_with_fullname): Rename. (dwarf2_gdb_index::map_matching_symbols): New method. (dwarf2_gdb_index::expand_symtabs_matching): New method. (dwarf2_base_index_functions::find_pc_sect_compunit_symtab) (dwarf2_base_index_functions::map_symbol_filenames) (dwarf2_base_index_functions::has_symbols): Rename. (dwarf2_gdb_index_functions): Remove. (dwarf2_debug_names_index::lookup_symbol) (dwarf2_debug_names_index::dump) (dwarf2_debug_names_index::expand_symtabs_for_function) (dwarf2_debug_names_index::map_matching_symbols) (dwarf2_debug_names_index::expand_symtabs_matching): Rename. (dwarf2_debug_names_functions): Remove. * dwarf2/public.h (make_dwarf_gdb_index, make_dwarf_debug_names): Declare.
2021-03-20Move sym_fns::qf to objfileTom Tromey12-89/+77
Currently the "partial" symbol reader is attached to the objfile's symbol functions. However, in order to allow multiple separate partial symbol readers, this association must be changed. This patch moves the "qf" member out of sym_fns as a step toward that goal. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * psymtab.c (require_partial_symbols): Check that 'sf' is not null. * xcoffread.c (xcoff_sym_fns): Update. * symfile.h (struct sym_fns) <qf>: Remove. * symfile.c (syms_from_objfile_1, reread_symbols): Update. * symfile-debug.c (objfile::has_partial_symbols) (objfile::find_last_source_symtab) (objfile::forget_cached_source_info) (objfile::map_symtabs_matching_filename, objfile::lookup_symbol) (objfile::print_stats, objfile::dump) (objfile::expand_symtabs_for_function) (objfile::expand_all_symtabs) (objfile::expand_symtabs_with_fullname) (objfile::map_matching_symbols) (objfile::expand_symtabs_matching) (objfile::find_pc_sect_compunit_symtab) (objfile::map_symbol_filenames) (objfile::find_compunit_symtab_by_address) (objfile::lookup_global_symbol_language, debug_sym_fns) (install_symfile_debug_logging): Update. * objfiles.h (struct objfile) <qf>: New member. * mipsread.c (ecoff_sym_fns): Update. * machoread.c (macho_sym_fns): Update. * elfread.c (elf_sym_fns_gdb_index, elf_sym_fns_debug_names): Don't declare. (elf_symfile_read, elf_sym_fns, elf_sym_fns_lazy_psyms): Update. * dbxread.c (aout_sym_fns): Update. * coffread.c (coff_sym_fns): Update.
2021-03-20Move quick_symbol_functions to a new headerTom Tromey3-205/+238
This introduces a new header, quick-symbol.h, and moves quick_symbol_functions and related typedefs into it. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symfile.h (symbol_compare_ftype, symbol_filename_ftype) (expand_symtabs_file_matcher_ftype) (expand_symtabs_symbol_matcher_ftype) (expand_symtabs_exp_notify_ftype, struct quick_symbol_functions): Move to quick-symbol.h. * quick-symbol.h: New file.
2021-03-20Introduce method wrappers for quick_symbol_functionsTom Tromey11-368/+368
This introduces wrappers for each function in quick_symbol_functions. The wrappers are methods on objfile, and are defined in symfile-debug.c, so that they can use the symfile_debug variable. Places that call the quick functions are all updated to call these new wrapper methods. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symtab.c (iterate_over_symtabs, expand_symtab_containing_pc) (lookup_symbol_via_quick_fns, find_quick_global_symbol_language) (basic_lookup_transparent_type_quick) (find_pc_sect_compunit_symtab, find_symbol_at_address) (find_line_symtab, global_symbol_searcher::expand_symtabs): Update. * symmisc.c (print_objfile_statistics, dump_objfile) (maintenance_expand_symtabs): Update. * symfile.c (symbol_file_add_with_addrs) (expand_symtabs_matching, map_symbol_filenames): Update. * symfile-debug.c (objfile::has_partial_symbols) (objfile::find_last_source_symtab) (objfile::forget_cached_source_info) (objfile::map_symtabs_matching_filename, objfile::lookup_symbol) (objfile::print_stats, objfile::dump) (objfile::expand_symtabs_for_function) (objfile::expand_all_symtabs) (objfile::expand_symtabs_with_fullname) (objfile::map_matching_symbols) (objfile::expand_symtabs_matching) (objfile::find_pc_sect_compunit_symtab) (objfile::map_symbol_filenames) (objfile::find_compunit_symtab_by_address) (objfile::lookup_global_symbol_language): New methods. (debug_sym_quick_functions): Remove. (debug_sym_fns, install_symfile_debug_logging): Update. * source.c (forget_cached_source_info_for_objfile) (select_source_symtab): Update. * objfiles.h (struct objfile): Add methods corresponding to quick_symbol_functions. * objfiles.c (objfile::has_partial_symbols): Move to symfile-debug.c. * linespec.c (iterate_over_all_matching_symtabs): Update. * cp-support.c (add_symbol_overload_list_qualified): Update. * ada-lang.c (add_nonlocal_symbols): Update.
2021-03-20Change objfile::has_partial_symbols to return boolTom Tromey7-10/+20
This changes objfile::has_partial_symbols and quick_symbol_functions::has_symbols to return bool. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * objfiles.h (struct objfile) <has_partial_symbols>: Return bool. * symfile.h (struct quick_symbol_functions) <has_symbols>: Return bool. * symfile-debug.c (debug_qf_has_symbols): Return bool. * psymtab.c (psym_has_symbols): Return bool. * objfiles.c (objfile::has_partial_symbols): Return bool. * dwarf2/read.c (dw2_has_symbols): Return bool.
2021-03-20Change objfile_has_partial_symbols to a methodTom Tromey7-16/+29
This changes objfile_has_partial_symbols to be a method on objfile. There are some other functions that could benefit from this sort of change, but this was the only one that was relevant to this series. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symfile.c (read_symbols): Update. * objfiles.h (struct objfile) <has_partial_symbols>: New method. (objfile_has_partial_symbols): Don't declare. * objfiles.c (objfile::has_partial_symbols): Rename from objfile_has_partial_symbols. (objfile_has_symbols, have_partial_symbols): Update. * elfread.c (elf_symfile_read): Update. * dwarf2/read.c (dwarf2_has_info): Update. * coffread.c (coff_symfile_read): Update.
2021-03-20Introduce dwarf2/public.hTom Tromey10-27/+67
This moves some more DWARF code out of symfile.h and into a new header, dwarf2/public.h. This header is intended to describe the public API of the DWARF reader. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * coffread.c: Include dwarf2/public.h. * dwarf2/frame.c: Include dwarf2/public.h. * dwarf2/index-write.h: Include dwarf2/public.h, not symfile.h. * dwarf2/public.h: New file. * dwarf2/read.c: Include dwarf2/public.h. * elfread.c: Include dwarf2/public.h. * machoread.c: Include dwarf2/public.h. * symfile.h (dwarf2_has_info, enum dw_index_kind) (dwarf2_initialize_objfile, dwarf2_build_psymtabs) (dwarf2_build_frame_info): Move to dwarf2/public.h. * xcoffread.c: Include dwarf2/public.h.
2021-03-20Move some DWARF code out of symfile.hTom Tromey3-11/+18
This moves a bit of the DWARF-specific code out of symfile.h and into dwarf2/read.h. gdb/ChangeLog 2021-03-20 Tom Tromey <tom@tromey.com> * symfile.h (enum dwarf2_section_enum) (dwarf2_get_section_info): Move to dwarf2/read.h. * dwarf2/read.h (enum dwarf2_section_enum) (dwarf2_get_section_info): Move from symfile.h.
2021-03-19Fix potential hang during gdbserver testingKevin Buettner2-1/+11
We're currently seeing testing of native-extended-gdbserver hang while testing the x86_64 architecture on both Fedora 34 and Fedora Rawhide. The test responsible for the hang is gdb.threads/fork-plus-threads.exp. While there is clearly a problem/bug with this test on F34 and Rawhide, it's also the case that testing should not hang. This commit prevents the hang by waiting with the "-nowait" flag in close_gdbserver. The -nowait flag is also used in the kill_wait_spawned_process proc in gdb/testsuite/lib/gdb.exp, so there is precedent for doing this. There are also 15 other uses of "wait -i" scattered throughout the test suite. While it's tempting to change these to also use the -nowait flag, I think it might be safer to defer doing so until we actually see a problem. I've tested this patch on Fedora 32, 33, 34, and Rawhide. Results are comparable on Fedora 32 and 33. On Fedora 34 and Rawhide, with this commit in place, testing completes when the target_board is native-extended-gdbserver. On those OSes, when not using this commit, testing usually hangs due to a problem with gdb.threads/fork-plus-threads.exp. I've also tested on all of the mentioned OSes with target_board=native-gdbserver; for that testing, I achieved comparable results over a number of runs. (Unfortunately results are rarely identical due to racy tests.) gdb/testsuite/ChangeLog: * lib/gdbserver-support.exp (gdbserver_exit): Use the "-nowait" flag when waiting for gdbserver to exit.
2021-03-19Fix any_thread_of_inferiorPedro Alves2-2/+7
Running gdb-term.exp against gdbserver with "maint set target-non-stop on", runs into this: [infrun] fetch_inferior_event: exit [infrun] fetch_inferior_event: enter /home/pedro/gdb/binutils-gdb/src/gdb/thread.c:72: internal-error: thread_info* inferior_thread(): Assertion `current_thread_ != nullptr' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. This is a bug, please report it. For instructions, see: <https://www.gnu.org/software/gdb/bugs/>. FAIL: gdb.base/gdb-sigterm.exp: expect eof #2 (GDB internal error) Resyncing due to internal error. ERROR: : spawn id exp9 not open while executing "expect { -i exp9 -timeout 10 -re "Quit this debugging session\\? \\(y or n\\) $" { send_gdb "n\n" answer incr count } -re "Create ..." ("uplevel" body line 1) invoked from within "uplevel $body" NONE : spawn id exp9 not open ERROR: Could not resync from internal error (timeout) gdb.base/gdb-sigterm.exp: expect eof #2: stepped 0 times UNRESOLVED: gdb.base/gdb-sigterm.exp: 50 SIGTERM passes The assertion fails here: ... #5 0x000055af4b4a7164 in internal_error (file=0x55af4b5e5de8 "/home/pedro/gdb/binutils-gdb/src/gdb/thread.c", line=72, fmt=0x55af4b5e5ce9 "%s: Assertion `%s' failed.") at /home/pedro/gdb/binutils-gdb/src/gdbsupport/errors.cc:55 #6 0x000055af4b25fc43 in inferior_thread () at /home/pedro/gdb/binutils-gdb/src/gdb/thread.c:72 #7 0x000055af4b26177e in any_thread_of_inferior (inf=0x55af4cf874f0) at /home/pedro/gdb/binutils-gdb/src/gdb/thread.c:638 #8 0x000055af4b26eec8 in kill_or_detach (inf=0x55af4cf874f0, from_tty=0) at /home/pedro/gdb/binutils-gdb/src/gdb/top.c:1665 #9 0x000055af4b26f37f in quit_force (exit_arg=0x0, from_tty=0) at /home/pedro/gdb/binutils-gdb/src/gdb/top.c:1767 #10 0x000055af4b2f72a7 in quit () at /home/pedro/gdb/binutils-gdb/src/gdb/utils.c:633 #11 0x000055af4b2f730b in maybe_quit () at /home/pedro/gdb/binutils-gdb/src/gdb/utils.c:657 #12 0x000055af4b1adb74 in ser_base_wait_for (scb=0x55af4d02e460, timeout=0) at /home/pedro/gdb/binutils-gdb/src/gdb/ser-base.c:236 #13 0x000055af4b1adf0f in do_ser_base_readchar (scb=0x55af4d02e460, timeout=0) at /home/pedro/gdb/binutils-gdb/src/gdb/ser-base.c:365 #14 0x000055af4b1ae06d in generic_readchar (scb=0x55af4d02e460, timeout=0, do_readchar=0x55af4b1adeb1 <do_ser_base_readchar(serial*, int)>) at /home/pedro/gdb/binutils-gdb/src/gdb/ser-base.c:444 ... The bug is that any_thread_of_inferior incorrectly assumes that there's always a selected thread. This fixes it. gdb/ChangeLog: * thread.c (any_thread_of_inferior): Check if there's a selected thread before calling inferior_thread(). Change-Id: Ica4b9ec746121a7a7c22bef09baea72103b3853d
2021-03-19Enable macro test for clang compilerSourabh Singh Tomar5-9/+26
`clang` uses `-fdebug-macro` switch to enable debug-info for macros. gdb/testsuite/ChangeLog: 2021-03-19 Sourabh Singh Tomar <SourabhSingh.Tomar@amd.com> * gdb.base/info-macros.exp: Append -fdebug-macro to additional_flags for clang. * gdb.base/macscp.exp: Likewise. * gdb.base/style.exp: Likewise. * gdb.linespec/macro-relative.exp: Likewise.
2021-03-18Reimplement dwarf_unit_type_nameTom Tromey4-28/+24
I noticed that dwarf_unit_type_name is nearly identical to get_DW_UT_name from libiberty; but rather than simply replacing it, it seemed better to have it work like the other DWARF constant stringification functions -- return a string showing unrecognized numeric forms rather than nullptr. (The previous code did include numeric values for the recognized constants, but this seems to be not that useful to me.) 2021-03-18 Tom Tromey <tromey@adacore.com> * dwarf2/stringify.c (dwarf_unit_type_name): New function. Use get_DW_UT_name. * dwarf2/stringify.h (dwarf_unit_type_name): Declare. * dwarf2/comp-unit.c (dwarf_unit_type_name): Remove.
2021-03-18gdb/doc: fix the example for get_set_string in Python API docsAndrew Burgess4-5/+14
The small example for gdb.Parameter.get_set_string does not return a string. The documentation is very clear that this method must return a string, and indeed, inspecting the code in gdb/python/py-param.c shows that a string return value is required (if an exception is not thrown). While inspecting the code in gdb/python/py-param.c I noticed that the comment for the C++ code that invokes the Python get_set_string method is wrong, so I updated that too. gdb/ChangeLog: * python/py-param.c (get_set_value): Update header comment. gdb/doc/ChangeLog: * python.texinfo (Parameters In Python): Return empty string in small example code.
2021-03-17gdb: remove unneeded argument in check_multi_target_resumptionSimon Marchi2-1/+6
If we reach the modified line, resume_target is necessarily nullptr, because of the check at the beginning of the function. So we'll necessarily iterate on all non-exited inferiors (across all targets), which is what we want. So just remove the unnecessary argument. gdb/ChangeLog: * infrun.c (check_multi_target_resumption): Remove argument to all_non_exited_inferiors. Change-Id: If95704915dca19599d5f7f4732bbd6ccd20bf6b4
2021-03-17gdb/testsuite: add test for run/attach while program is runningSimon Marchi3-0/+195
A WIP patch series broke the use case of doing "run" or "attach" while the program is running, but it wasn't caught by the testsuite, which means it's not covered. Add a test for that. gdb/testsuite/ChangeLog: * gdb.base/run-attach-while-running.exp: New. * gdb.base/run-attach-while-running.c: New. Change-Id: I77f098ec0b28dc2d4575ea80e941f6a75273e431
2021-03-16Fix cygwin build errorChristian Biesinger2-1/+6
With "gcc version 10.2.0 (GCC)" on cygwin, I get this build error: CXX windows-nat.o In file included from ../../gdb/../gdbsupport/common-defs.h:129, from ../../gdb/defs.h:28, from ../../gdb/windows-nat.c:24: ../../gdb/windows-nat.c: In function 'void windows_init_thread_list()': ../../gdb/windows-nat.c:513:17: error: zero-length gnu_printf format string [-Werror=format-zero-length] 513 | DEBUG_EVENTS (""); | ^~ ../../gdb/../gdbsupport/common-debug.h:65:43: note: in definition of macro 'debug_prefixed_printf_cond' 65 | debug_prefixed_printf (module, __func__, fmt, ##__VA_ARGS__); \ | ^~~ ../../gdb/windows-nat.c:513:3: note: in expansion of macro 'DEBUG_EVENTS' 513 | DEBUG_EVENTS (""); | ^~~~~~~~~~~~ cc1plus: all warnings being treated as errors This was introduced in 4ef367bffd73d50002339deba40983530ccb9d15, which removed the function name from this debug message: - DEBUG_EVENTS (("gdb: windows_init_thread_list\n")); + DEBUG_EVENTS (""); DEBUG_EVENTS now always includes the function name, so just add a "called" message to fix the compile error. gdb/ChangeLog: 2021-03-16 Christian Biesinger <cbiesinger@google.com> * windows-nat.c (windows_init_thread_list): Add message to debug log.
2021-03-16gdb/python: fix FrameDecorator regression on Python 2Andrew Burgess6-1/+169
This commit: commit d1cab9876d72d867b2de82688f5f5a2a4b655edb Date: Tue Sep 15 11:08:56 2020 -0600 Don't use gdb_py_long_from_ulongest Introduced a regression when GDB is compiled with Python 2. The frame filter API expects the gdb.FrameDecorator.function () method to return either a string (the name of a function) or an address, which GDB then uses to lookup a msymbol. If the address returned from gdb.FrameDecorator.function () comes from gdb.Frame.pc () then before the above commit we would always expect to see a PyLong object. After the above commit we might (on Python 2) get a PyInt object. The GDB code does not expect to see a PyInt, and only checks for a PyLong, we then see an error message like: RuntimeError: FrameDecorator.function: expecting a String, integer or None. This commit just adds an additional call to PyInt_Check which handle the missing case. I had already written a test case to cover this issue before spotting that the gdb.python/py-framefilter.exp test also triggers this failure. As the new test case is slightly different I have kept it in. The new test forces the behaviour of gdb.FrameDecorator.function returning an address. The reason the existing test case hits this is due to the behaviour of the builtin gdb.FrameDecorator base class. If the base class behaviour ever changed then the return an address case would only be tested by the new test case. gdb/ChangeLog: * python/py-framefilter.c (py_print_frame): Use PyInt_Check as well as PyLong_Check for Python 2. gdb/testsuite/ChangeLog: * gdb.python/py-framefilter-addr.c: New file. * gdb.python/py-framefilter-addr.exp: New file. * gdb.python/py-framefilter-addr.py: New file.
2021-03-16gdb/testsuite: squash duplicate test names in gdb.threads/*.expAndrew Burgess7-48/+77
Resolve all of the duplicate test names in the gdb.threads/*.exp set of tests (that I see). Nothing very exciting here, mostly either giving tests explicit testnames, or adding with_test_prefix. The only interesting one is gdb.threads/execl.exp, I believe the duplicate test name was caused by an actual duplicate test. I've remove the simpler form of the test. I don't believe we've lost any test coverage with this change. gdb/testsuite/ChangeLog: * gdb.threads/execl.exp: Remove duplicate 'info threads' test. Make use of $gdb_test_name instead of creating a separate $test variable. * gdb.threads/print-threads.exp: Add a with_test_prefix instead of adding a '($name)' at the end of each test. This also catches the one place where '($name)' was missing, and so caused a duplicate test name. * gdb.threads/queue-signal.exp: Give tests unique names to avoid duplicate test names based on the command being tested. * gdb.threads/signal-command-multiple-signals-pending.exp: Likewise. * lib/gdb.exp (gdb_compile_shlib_pthreads): Tweak test name to avoid duplicate testnames when a test script uses this proc and also gdb_compile_pthreads. * lib/prelink-support.exp (build_executable_own_libs): Use with_test_prefix to avoid duplicate test names when we call build_executable twice.
2021-03-15Fix GDB build with GCC 4.8.2Tom Tromey3-2/+12
PR build/27579 points out that the expression rewrite series introduced a build failure with GCC 4.8.2. The bug is that there's no std::hash specialization for enum exp_opcode. This patch fixes the problem by using gdb::hash_enum. 2021-03-15 Tom Tromey <tromey@adacore.com> PR build/27579: * rust-exp.y (maker_map): Use gdb::hash_enum. * stap-probe.c (stap_maker_map): Use gdb::hash_enum.
2021-03-15gdb: remove spurious colon in create_debug_type_hash_table debug printSimon Marchi2-1/+6
This printout in create_debug_type_hash_table has an unexpected colon at the end, remove it: [dwarf-read] create_debug_type_hash_table: Reading .debug_info for /home/simark/build/binutils-gdb/gdb/a.out: gdb/ChangeLog: * dwarf2/read.c (create_debug_type_hash_table): Remove colon at end of debug print. Change-Id: I2d707248249daf4d8b6fa8e7064acdc56c90f2dd
2021-03-15gdb: add logging to dwarf2_initialize_objfileSimon Marchi1-1/+14
I added these printouts while working on 27541. I won't have a fix for that right now, but I thought that it would be useful to merge them upstream, as they help understand what happens in that function. gdb/ChangeLog: * dwarf2/read.c (dwarf2_initialize_objfile): Add debug prints. Change-Id: I790c0d53383327038cb5dd705f74c8c978e0a7ec
2021-03-15gdb: remove dw2_get_file_names_reader's info_ptr parameterSimon Marchi2-2/+6
I noticed that this parameter was unused, remove it. gdb/ChangeLog: * dwarf2/read.c (dw2_get_file_names_reader): Remove info_ptr parameter, adjust caller. Change-Id: I2a741766a0c658c22c512590aeffdd07391c869c
2021-03-15Fix unary + in AdaTom Tromey4-3/+18
My previous Ada patches introduced a bug that I found after checkin. I had incorrectly implemented unary +. There was a test for the overloaded case, but no test for the ordinary case. This patch adds the tests and fixes the bug. Tested on x86-64 Fedora 32. gdb/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * ada-exp.y (simple_exp): Always push a result for unary '+'. gdb/testsuite/ChangeLog 2021-03-15 Tom Tromey <tromey@adacore.com> * gdb.ada/fixed_points.exp: Add tests of unary + and -.