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* Return std::string from perror_stringTom Tromey2017-09-031-21/+7
| | | | | | | | | | | Change perror_string to return a std::string, removing a cleanup in the process. ChangeLog 2017-09-03 Tom Tromey <tom@tromey.com> * utils.c (perror_string): Return a std::string. (throw_perror_with_name, perror_warning_with_name): Update.
* Change gdb_realpath to return a unique_xmalloc_ptrTom Tromey2017-08-221-7/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes gdb_realpath to return a unique_xmalloc_ptr and fixes up the callers. This allows removing some cleanups. This change by itself caused xfullpath.exp to fail; and attempting to fix that ran into various problems (like .get() being optimized out); so this patch also rewrites xfullpath.exp to be a C++ selftest instead. ChangeLog 2017-08-22 Tom Tromey <tom@tromey.com> * exec.c (exec_file_attach): Update. * linux-thread-db.c (try_thread_db_load): Update. * guile/scm-safe-call.c (gdbscm_safe_source_script): Update. * utils.c (gdb_realpath): Change return type. (gdb_realpath_keepfile): Update. (gdb_realpath_check_trailer, gdb_realpath_tests): New functions. (_initialize_utils): Register the new self test. * source.c (openp): Update. (find_and_open_source): Update. * nto-tdep.c (nto_find_and_open_solib): Update. * main.c (set_gdb_data_directory): Update. (captured_main_1): Update. * dwarf2read.c (dwarf2_get_dwz_file): Update (dw2_map_symbol_filenames): Update. * auto-load.c (auto_load_safe_path_vec_update): Update. (filename_is_in_auto_load_safe_path_vec): Change type of "filename_realp". (auto_load_objfile_script): Update. (file_is_auto_load_safe): Update. Use std::string. * utils.h (gdb_realpath): Return a gdb::unique_xmalloc_ptr. testsuite/ChangeLog 2017-08-22 Tom Tromey <tom@tromey.com> * gdb.gdb/xfullpath.exp: Remove.
* Change gdb_realpath_keepfile to return a unique_xmalloc_ptrTom Tromey2017-08-221-3/+3
| | | | | | | | | | | | | | This changes gdb_realpath_keepfile to return a unique_xmalloc_ptr, and fixes up the callers. ChangeLog 2017-08-22 Tom Tromey <tom@tromey.com> * utils.c (gdb_realpath_keepfile): Return a gdb::unique_xmalloc_ptr. * exec.c (exec_file_attach): Update. * utils.h (gdb_realpath_keepfile): Return a gdb::unique_xmalloc_ptr.
* Change gdb_abspath to return a unique_xmalloc_ptrTom Tromey2017-08-221-12/+9
| | | | | | | | | | | | | | | | | This changes gdb_abspath to return a unique_xmalloc_ptr, and fixes up the callers. This allows the removal of a cleanup, and also puts ownership rules into the API, where they belong. ChangeLog 2017-08-22 Tom Tromey <tom@tromey.com> * compile/compile.c (compile_file_command): Use gdb::unique_xmalloc_ptr, std::string. * utils.c (gdb_abspath): Change return type. * source.c (openp): Update. * objfiles.c (allocate_objfile): Update. * main.c (set_gdb_data_directory): Update. * utils.h (gdb_abspath): Return a gdb::unique_xmalloc_ptr.
* Remove make_cleanup_freeargv and gdb_buildargvTom Tromey2017-08-031-27/+0
| | | | | | | | | | | | After the previous patches in this series, make_cleanup_freeargv and gdb_buildargv are now unused and can be removed. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.c (make_cleanup_freeargv, do_freeargv, gdb_buildargv): Remove. * utils.h (make_cleanup_freeargv, gdb_buildargv): Remove.
* Introduce gdb_argv, a class wrapper for buildargvTom Tromey2017-08-031-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces gdb_argv, a class wrapping an "argv" pointer; that is, a pointer to a NULL-terminated array of char*, where both the array and each non-NULL element in the array are xmalloc'd. This patch then changes most users of gdb_buildargv to use gdb_argv instead. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (struct gdb_argv_deleter): New. (gdb_argv): New class. * utils.c (gdb_argv::reset): New method. * tracepoint.c (delete_trace_variable_command): Use gdb_argv. * tracefile.c (tsave_command): Use gdb_argv. * top.c (new_ui_command): Use gdb_argv. * symmisc.c (maintenance_print_symbols) (maintenance_print_msymbols, maintenance_expand_symtabs): Use gdb_argv. * symfile.c (symbol_file_command, generic_load) (remove_symbol_file_command): Use gdb_argv. * stack.c (backtrace_command): Use gdb_argv. * source.c (add_path, show_substitute_path_command) (unset_substitute_path_command, set_substitute_path_command): Use gdb_argv. * skip.c (skip_command): Use gdb_argv. Use gdb_buildargv. * ser-mingw.c (pipe_windows_open): Use gdb_argv. * remote.c (extended_remote_run, remote_put_command) (remote_get_command, remote_delete_command): Use gdb_argv. * remote-sim.c (gdbsim_load, gdbsim_create_inferior) (gdbsim_open): Use gdb_argv. * python/py-cmd.c (gdbpy_string_to_argv): Use gdb_argv. * psymtab.c (maintenance_print_psymbols): Use gdb_argv. * procfs.c (procfs_info_proc): Use gdb_argv. * interps.c (interpreter_exec_cmd): Use gdb_argv. * infrun.c (handle_command): Use gdb_argv. * inferior.c (add_inferior_command, clone_inferior_command): Use gdb_argv. * guile/scm-string.c (gdbscm_string_to_argv): Use gdb_argv. * exec.c (exec_file_command): Use gdb_argv. * cli/cli-cmds.c (alias_command): Use gdb_argv. * compile/compile.c (build_argc_argv): Use gdb_argv.
* Remove make_cleanup_free_soTom Tromey2017-08-031-18/+0
| | | | | | | | | | | | | | | make_cleanup_free_so is used in a single spot. This patch introduces a unique pointer wrapper for struct so_list, and changes this spot to use it. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (make_cleanup_free_so): Remove. * utils.c (do_free_so, make_cleanup_free_so): Remove. * solist.h (struct so_deleter): New. (so_list_up): New typedef. * solib-svr4.c (svr4_read_so_list): Use so_list_up.
* Remove make_cleanup_restore_current_languageTom Tromey2017-08-031-22/+0
| | | | | | | | | | | | | | | | | | | This patch replaces make_cleanup_restore_current_language with an RAII class that saves the current language, and restores it when the object is destroyed. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (make_cleanup_restore_current_language): Remove. * utils.c (do_restore_current_language) (make_cleanup_restore_current_language): Remove. * parse.c (parse_exp_in_context_1) (parse_expression_with_language): Use scoped_restore_current_language. * mi/mi-main.c (mi_cmd_execute): Use scoped_restore_current_language. * language.h (scoped_restore_current_language): New class.
* Remove make_cleanup_fcloseTom Tromey2017-08-031-18/+0
| | | | | | | | | | | After the preceding patches, make_cleanup_fclose is no longer used, so remove it. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (make_cleanup_fclose): Remove. * utils.c (do_fclose_cleanup, make_cleanup_fclose): Remove.
* Introduce strncmp_iwPedro Alves2017-07-171-23/+54
| | | | | | | | | | | | | | | | | | | | The explicit locations completer patch will need a strncmp_iw function, that to strcmp_iw like strncmp is to strcmp. This patch implements it. (Unit tests added a bit further down in this series will exercise this.) gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * utils.c (enum class strncmp_iw_mode): New. (strcmp_iw): Rename to ... (strncmp_iw_with_mode): ... this. Add string2_len and mode parameters. Handle them. (strncmp_iw): New. (strcmp_iw): Reimplement as wrapper around strncmp_iw_with_mode. * utils.h (strncmp_iw): Declare. (strcmp_iw): Move describing comments here.
* Eliminate make_cleanup_obstack_free, introduce auto_obstackPedro Alves2017-06-271-23/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit eliminates make_cleanup_obstack_free, replacing it with a new auto_obstack type that inherits obstack to add cdtors. These changes in the parsers may not be obvious: - obstack_init (&name_obstack); - make_cleanup_obstack_free (&name_obstack); + name_obstack.clear (); Here, the 'name_obstack' variable is a global. The change means that the obstack's contents from a previous parse will stay around until the next parsing starts. I.e., memory won't be reclaimed until then. I don't think that's a problem, these objects don't really grow much at all. The other option I tried was to add a separate type that is like auto_obstack but manages an external obstack, just for those cases. I like the current approach better as that other approach adds more boilerplate and yet another type to learn. gdb/ChangeLog: 2017-06-27 Pedro Alves <palves@redhat.com> * c-exp.y (name_obstack): Now an auto_obstack. (yylex): Use auto_obstack::clear. (c_parse): Use auto_obstack::clear instead of reinitializing and freeing the obstack. * c-lang.c (evaluate_subexp_c): Use auto_obstack. * d-exp.y (name_obstack): Now an auto_obstack. (yylex): Use auto_obstack::clear. (d_parse): Use auto_obstack::clear instead of reinitializing and freeing the obstack. * dwarf2loc.c (fetch_const_value_from_synthetic_pointer): Use auto_obstack. * dwarf2read.c (create_addrmap_from_index) (dwarf2_build_psymtabs_hard) (update_enumeration_type_from_children): Likewise. * gdb_obstack.h (auto_obstack): New type. * go-exp.y (name_obstack): Now an auto_obstack. (build_packaged_name): Use auto_obstack::clear. (go_parse): Use auto_obstack::clear instead of reinitializing and freeing the obstack. * linux-tdep.c (linux_make_mappings_corefile_notes): Use auto_obstack. * printcmd.c (printf_wide_c_string, ui_printf): Use auto_obstack. * rust-exp.y (work_obstack): Now an auto_obstack. (rust_parse, rust_lex_tests): Use auto_obstack::clear instead of reinitializing and freeing the obstack. * utils.c (do_obstack_free, make_cleanup_obstack_free): Delete. (host_char_to_target): Use auto_obstack. * utils.h (make_cleanup_obstack_free): Delete declaration. * valprint.c (generic_emit_char, generic_printstr): Use auto_obstack.
* Move parts of inferior job control to common/Sergio Durigan Junior2017-06-071-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit moves a few bits responsible for dealing with inferior job control from GDB to common/, which makes them available to gdbserver. This is necessary for the upcoming patches that will share fork_inferior et al between GDB and gdbserver. We move some parts of gdb/terminal.h to gdb/common/common-terminal.h, especifically the code that checks terminal features and that are used to set job_control accordingly. After sharing parts of gdb/terminal.h, we also to share the two functions on gdb/inflow.c that are going to be needed by the fork_inferior rework. They are 'gdb_setpgid' and the new 'have_job_control'. I've also taken the opportunity to give a more meaningful name to "inflow.c" on common/. Now it is called "job-control.c" (thanks Pedro for the suggestion). gdb/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * Makefile.in (SFILES): Add "common/job-control.c". (HFILES_NO_SRCDIR): Add "common/job-control.h". (COMMON_OBS): Add "job-control.o". * common/job-control.c: New file, with contents from "gdb/inflow.c". * common/job-control.h: New file, with contents from "terminal.h". * fork-child.c: Include "job-control.h". * inflow.c: Include "job-control.h". (gdb_setpgid): Move to "common/common-inflow.c". (_initialize_inflow): Move setting of "job_control" to "handle_job_control". * terminal.h (job_control): Moved to "common/common-terminal.h". (gdb_setpgid): Likewise. * top.c: Include "job_control.h". * utils.c: Likewise. (job_control): Moved to "job-control.c". gdb/gdbserver/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * Makefile.in (SFILE): Add "common/job-control.c". (OBS): Add "job-control.o".
* Introduce compiled_regex, eliminate make_regfree_cleanupPedro Alves2017-06-071-52/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces compile_rx_or_error and make_regfree_cleanup with a class that wraps a regex_t. gdb/ChangeLog: 2017-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (SFILES): Add gdb_regex.c. (COMMON_OBS): Add gdb_regex.o. * ada-lang.c (ada_add_standard_exceptions) (ada_add_exceptions_from_frame, name_matches_regex) (ada_add_global_exceptions, ada_exceptions_list_1): Change regex parameter type to compiled_regex. Adjust. (ada_exceptions_list): Use compiled_regex. * break-catch-throw.c (exception_catchpoint::pattern): Now a std::unique_ptr<compiled_regex>. (exception_catchpoint::~exception_catchpoint): Remove regfree call. (check_status_exception_catchpoint): Adjust to use compiled_regex. (handle_gnu_v3_exceptions): Adjust to use compiled_regex. * breakpoint.c (solib_catchpoint::compiled): Now a std::unique_ptr<compiled_regex>. (solib_catchpoint::~solib_catchpoint): Remove regfree call. (check_status_catch_solib): Adjust to use compiled_regex. (add_solib_catchpoint): Adjust to use compiled_regex. * cli/cli-cmds.c (apropos_command): Use compiled_regex. * cli/cli-decode.c (apropos_cmd): Change regex parameter to compiled_regex reference. Adjust to use it. * cli/cli-decode.h: Remove struct re_pattern_buffer forward declaration. Include "gdb_regex.h". (apropos_cmd): Change regex parameter to compiled_regex reference. * gdb_regex.c: New file. * gdb_regex.h (make_regfree_cleanup, get_regcomp_error): Delete declarations. (class compiled_regex): New. * linux-tdep.c: Include "common/gdb_optional.h". (struct mapping_regexes): New, factored out from mapping_is_anonymous_p, and adjusted to use compiled_regex. (mapping_is_anonymous_p): Use mapping_regexes wrapped in a gdb::optional and remove cleanups. Adjust to compiled_regex. * probe.c: Include "common/gdb_optional.h". (collect_probes): Use compiled_regex and gdb::optional and remove cleanups. * skip.c: Include "common/gdb_optional.h". (skiplist_entry::compiled_function_regexp): Now a gdb::optional<compiled_regex>. (skiplist_entry::compiled_function_regexp_is_valid): Delete field. (free_skiplist_entry): Remove regfree call. (compile_skip_regexp, skip_rfunction_p): Adjust to use compiled_regex and gdb::optional. * symtab.c: Include "common/gdb_optional.h". (search_symbols): Use compiled_regex and gdb::optional. * utils.c (do_regfree_cleanup, make_regfree_cleanup) (get_regcomp_error, compile_rx_or_error): Delete. Some bits moved to gdb_regex.c.
* -Wwrite-strings: The RestPedro Alves2017-04-051-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the remainder boring constification that all looks more of less borderline obvious IMO. gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * ada-exp.y (yyerror): Constify. * ada-lang.c (bound_name, get_selections) (ada_variant_discrim_type) (ada_variant_discrim_name, ada_value_struct_elt) (ada_lookup_struct_elt_type, is_unchecked_variant) (ada_which_variant_applies, standard_exc, ada_get_next_arg) (catch_ada_exception_command_split) (catch_ada_assert_command_split, catch_assert_command) (ada_op_name): Constify. * ada-lang.h (ada_yyerror, get_selections) (ada_variant_discrim_name, ada_value_struct_elt): Constify. * arc-tdep.c (arc_print_frame_cache): Constify. * arm-tdep.c (arm_skip_stub): Constify. * ax-gdb.c (gen_binop, gen_struct_ref_recursive, gen_struct_ref) (gen_aggregate_elt_ref): Constify. * bcache.c (print_bcache_statistics): Constify. * bcache.h (print_bcache_statistics): Constify. * break-catch-throw.c (catch_exception_command_1): * breakpoint.c (struct ep_type_description::description): Constify. (add_solib_catchpoint): Constify. (catch_fork_command_1): Add cast. (add_catch_command): Constify. * breakpoint.h (add_catch_command, add_solib_catchpoint): Constify. * bsd-uthread.c (bsd_uthread_state): Constify. * buildsym.c (patch_subfile_names): Constify. * buildsym.h (next_symbol_text_func, patch_subfile_names): Constify. * c-exp.y (yyerror): Constify. (token::oper): Constify. * c-lang.h (c_yyerror, cp_print_class_member): Constify. * c-varobj.c (cplus_describe_child): Constify. * charset.c (find_charset_names): Add cast. (find_charset_names): Constify array and add const_cast. * cli/cli-cmds.c (complete_command, cd_command): Constify. (edit_command): Constify. * cli/cli-decode.c (lookup_cmd): Constify. * cli/cli-dump.c (dump_memory_command, dump_value_command): Constify. (struct dump_context): Constify. (add_dump_command, restore_command): Constify. * cli/cli-script.c (get_command_line): Constify. * cli/cli-script.h (get_command_line): Constify. * cli/cli-utils.c (check_for_argument): Constify. * cli/cli-utils.h (check_for_argument): Constify. * coff-pe-read.c (struct read_pe_section_data): Constify. * command.h (lookup_cmd): Constify. * common/print-utils.c (decimal2str): Constify. * completer.c (gdb_print_filename): Constify. * corefile.c (set_gnutarget): Constify. * cp-name-parser.y (yyerror): Constify. * cp-valprint.c (cp_print_class_member): Constify. * cris-tdep.c (cris_register_name, crisv32_register_name): Constify. * d-exp.y (yyerror): Constify. (struct token::oper): Constify. * d-lang.h (d_yyerror): Constify. * dbxread.c (struct header_file_location::name): Constify. (add_old_header_file, add_new_header_file, last_function_name) (dbx_next_symbol_text, add_bincl_to_list) (find_corresponding_bincl_psymtab, set_namestring) (find_stab_function_addr, read_dbx_symtab, start_psymtab) (dbx_end_psymtab, read_ofile_symtab, process_one_symbol): * defs.h (command_line_input, print_address_symbolic) (deprecated_readline_begin_hook): Constify. * dwarf2read.c (anonymous_struct_prefix, dwarf_bool_name): Constify. * event-top.c (handle_line_of_input): Constify and add cast. * exceptions.c (catch_errors): Constify. * exceptions.h (catch_errors): Constify. * expprint.c (print_subexp_standard, op_string, op_name) (op_name_standard, dump_raw_expression, dump_raw_expression): * expression.h (op_name, op_string, dump_raw_expression): Constify. * f-exp.y (yyerror): Constify. (struct token::oper): Constify. (struct f77_boolean_val::name): Constify. * f-lang.c (f_word_break_characters): Constify. * f-lang.h (f_yyerror): Constify. * fork-child.c (fork_inferior): Add cast. * frv-tdep.c (struct gdbarch_tdep::register_names): Constify. (new_variant): Constify. * gdbarch.sh (pstring_ptr, pstring_list): Constify. * gdbarch.c: Regenerate. * gdbcore.h (set_gnutarget): Constify. * go-exp.y (yyerror): Constify. (token::oper): Constify. * go-lang.h (go_yyerror): Constify. * go32-nat.c (go32_sysinfo): Constify. * guile/scm-breakpoint.c (gdbscm_breakpoint_expression): Constify. * guile/scm-cmd.c (cmdscm_function): Constify. * guile/scm-param.c (pascm_param_value): Constify. * h8300-tdep.c (h8300_register_name, h8300s_register_name) (h8300sx_register_name): Constify. * hppa-tdep.c (hppa32_register_name, hppa64_register_name): Constify. * ia64-tdep.c (ia64_register_names): Constify. * infcmd.c (construct_inferior_arguments): Constify. (path_command, attach_post_wait): Constify. * language.c (show_range_command, show_case_command) (unk_lang_error): Constify. * language.h (language_defn::la_error) (language_defn::la_name_of_this): Constify. * linespec.c (decode_line_2): Constify. * linux-thread-db.c (thread_db_err_str): Constify. * lm32-tdep.c (lm32_register_name): Constify. * m2-exp.y (yyerror): Constify. * m2-lang.h (m2_yyerror): Constify. * m32r-tdep.c (m32r_register_names): Constify and make static. * m68hc11-tdep.c (m68hc11_register_names): Constify. * m88k-tdep.c (m88k_register_name): Constify. * macroexp.c (appendmem): Constify. * mdebugread.c (fdr_name, add_data_symbol, parse_type) (upgrade_type, parse_external, parse_partial_symbols) (mdebug_next_symbol_text, cross_ref, mylookup_symbol, new_psymtab) (new_symbol): Constify. * memattr.c (mem_info_command): Constify. * mep-tdep.c (register_name_from_keyword): Constify. * mi/mi-cmd-env.c (mi_cmd_env_path, _initialize_mi_cmd_env): Constify. * mi/mi-cmd-stack.c (list_args_or_locals): Constify. * mi/mi-cmd-var.c (mi_cmd_var_show_attributes): Constify. * mi/mi-main.c (captured_mi_execute_command): Constify and add cast. (mi_execute_async_cli_command): Constify. * mips-tdep.c (mips_register_name): Constify. * mn10300-tdep.c (register_name, mn10300_generic_register_name) (am33_register_name, am33_2_register_name) * moxie-tdep.c (moxie_register_names): Constify. * nat/linux-osdata.c (osdata_type): Constify fields. * nto-tdep.c (nto_parse_redirection): Constify. * objc-lang.c (lookup_struct_typedef, lookup_objc_class) (lookup_child_selector): Constify. (objc_methcall::name): Constify. * objc-lang.h (lookup_objc_class, lookup_child_selector) (lookup_struct_typedef): Constify. * objfiles.c (pc_in_section): Constify. * objfiles.h (pc_in_section): Constify. * p-exp.y (struct token::oper): Constify. (yyerror): Constify. * p-lang.h (pascal_yyerror): Constify. * parser-defs.h (op_name_standard): Constify. (op_print::string): Constify. (exp_descriptor::op_name): Constify. * printcmd.c (print_address_symbolic): Constify. * psymtab.c (print_partial_symbols): Constify. * python/py-breakpoint.c (stop_func): Constify. (bppy_get_expression): Constify. * python/py-cmd.c (cmdpy_completer::name): Constify. (cmdpy_function): Constify. * python/py-event.c (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-event.h (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-evts.c (add_new_registry): Constify. * python/py-finishbreakpoint.c (outofscope_func): Constify. * python/py-framefilter.c (get_py_iter_from_func): Constify. * python/py-inferior.c (get_buffer): Add cast. * python/py-param.c (parm_constant::name): Constify. * python/py-unwind.c (fprint_frame_id): Constify. * python/python.c (gdbpy_parameter_value): Constify. * remote-fileio.c (remote_fio_func_map): Make 'name' const. * remote.c (memory_packet_config::name): Constify. (show_packet_config_cmd, remote_write_bytes) (remote_buffer_add_string): * reverse.c (exec_reverse_once): Constify. * rs6000-tdep.c (variant::name, variant::description): Constify. * rust-exp.y (rustyyerror): Constify. * rust-lang.c (rust_op_name): Constify. * rust-lang.h (rustyyerror): Constify. * serial.h (serial_ops::name): Constify. * sh-tdep.c (sh_sh_register_name, sh_sh3_register_name) (sh_sh3e_register_name, sh_sh2e_register_name) (sh_sh2a_register_name, sh_sh2a_nofpu_register_name) (sh_sh_dsp_register_name, sh_sh3_dsp_register_name) (sh_sh4_register_name, sh_sh4_nofpu_register_name) (sh_sh4al_dsp_register_name): Constify. * sh64-tdep.c (sh64_register_name): Constify. * solib-darwin.c (lookup_symbol_from_bfd): Constify. * spu-tdep.c (spu_register_name, info_spu_dma_cmdlist): Constify. * stabsread.c (patch_block_stabs, read_type_number) (ref_map::stabs, ref_add, process_reference) (symbol_reference_defined, define_symbol, define_symbol) (error_type, read_type, read_member_functions, read_cpp_abbrev) (read_one_struct_field, read_struct_fields, read_baseclasses) (read_tilde_fields, read_struct_type, read_array_type) (read_enum_type, read_sun_builtin_type, read_sun_floating_type) (read_huge_number, read_range_type, read_args, common_block_start) (find_name_end): Constify. * stabsread.h (common_block_start, define_symbol) (process_one_symbol, symbol_reference_defined, ref_add): * symfile.c (get_section_index, add_symbol_file_command): * symfile.h (get_section_index): Constify. * target-descriptions.c (tdesc_type::name): Constify. (tdesc_free_type): Add cast. * target.c (find_default_run_target): (add_deprecated_target_alias, find_default_run_target) (target_announce_detach): Constify. (do_option): Constify. * target.h (add_deprecated_target_alias): Constify. * thread.c (print_thread_info_1): Constify. * top.c (deprecated_readline_begin_hook, command_line_input): Constify. (init_main): Add casts. * top.h (handle_line_of_input): Constify. * tracefile-tfile.c (tfile_write_uploaded_tsv): Constify. * tracepoint.c (tvariables_info_1, trace_status_mi): Constify. (tfind_command): Rename to ... (tfind_command_1): ... this and constify. (tfind_command): New function. (tfind_end_command, tfind_start_command): Adjust. (encode_source_string): Constify. * tracepoint.h (encode_source_string): Constify. * tui/tui-data.c (tui_partial_win_by_name): Constify. * tui/tui-data.h (tui_partial_win_by_name): Constify. * tui/tui-source.c (tui_set_source_content_nil): Constify. * tui/tui-source.h (tui_set_source_content_nil): Constify. * tui/tui-win.c (parse_scrolling_args): Constify. * tui/tui-windata.c (tui_erase_data_content): Constify. * tui/tui-windata.h (tui_erase_data_content): Constify. * tui/tui-winsource.c (tui_erase_source_content): Constify. * tui/tui.c (tui_enable): Add cast. * utils.c (defaulted_query): Constify. (init_page_info): Add cast. (puts_debug, subset_compare): Constify. * utils.h (subset_compare): Constify. * varobj.c (varobj_format_string): Constify. * varobj.h (varobj_format_string): Constify. * vax-tdep.c (vax_register_name): Constify. * windows-nat.c (windows_detach): Constify. * xcoffread.c (process_linenos, xcoff_next_symbol_text): Constify. * xml-support.c (gdb_xml_end_element): Constify. * xml-tdesc.c (tdesc_start_reg): Constify. * xstormy16-tdep.c (xstormy16_register_name): Constify. * xtensa-tdep.c (xtensa_find_register_by_name): Constify. * xtensa-tdep.h (xtensa_register_t::name): Constify. gdb/gdbserver/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * gdbreplay.c (sync_error): Constify. * linux-x86-low.c (push_opcode): Constify.
* -Wwrite-strings: Constify warning_pre_printPedro Alves2017-04-051-1/+1
| | | | | | | | | | | | | -Wwrite-strings flags a warning here: char *warning_pre_print = "\nwarning: "; gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * main.c (captured_main_1): Use gdb::unique_xmalloc_ptr to manage the memory of the temporary warning_pre_print override. * utils.c (warning_pre_print): Constify. * utils.h (warning_pre_print): Constify.
* gdb: Make ldirname return a std::stringPedro Alves2017-03-271-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Eliminates several uses of cleanups. Tested on x86_64 Fedora 23 with Python 2 and 3. gdb/ChangeLog 2017-03-27 Pedro Alves <palves@redhat.com> * dwarf2read.c (struct file_and_directory): New. (dwarf2_get_dwz_file): Adjust to use std::string. (dw2_get_file_names_reader): Adjust to use file_and_directory. (find_file_and_directory): Adjust to return a file_and_directory object. (read_file_scope): Adjust to use file_and_directory. Remove make_cleanup/do_cleanups calls. (open_and_init_dwp_file): Adjust to use std::string. Remove make_cleanup/do_cleanups calls. * python/python.c (do_start_initialization): Adjust to ldirname returning a std::string. * utils.c (ldirname): Now returns a std::string. * utils.h (ldirname): Change return type to std::string. * xml-syscall.c (xml_init_syscalls_info): Adjust to ldirname returning a std::string. * xml-tdesc.c (file_read_description_xml): Likewise.
* Do not send queries on secondary UIsSimon Marchi2017-02-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a follow-up to https://sourceware.org/ml/gdb-patches/2017-02/msg00261.html This patch restricts queries to the main UI, which allows to avoid two different problems. The first one is that GDB is issuing queries on secondary MI channels for which a TTY is allocated. The second one is that GDB is not able to handle queries on two (CLI) UIs simultaneously. Restricting queries to the main UI allows to bypass these two problems. More details on how/why these two problems happen: 1. Queries on secondary MI UI The current criterion to decide if we should query the user is whether the input stream is a TTY. The original way to start GDB in MI mode from a front-end was to create a subprocess with pipes to its stdin/stdout. In this case, the input was considered non-interactive and queries were auto-answered. Now that front-ends can create the MI channel as a separate UI connected to a dedicated TTY, GDB now considers this input stream as interactive and sends queries to it. By restricting queries to the main UI, we make sure we never query on the secondary MI UI. 2. Simultaneous queries As Pedro stated it, when you have two queries on two different CLI UIs at the same time, you end up with the following pseudo stack: #0 gdb_readline_wrapper #1 defaulted_query // for UI #2 #2 handle_command #3 execute_command ("handle SIGTRAP" .... #4 stdin_event_handler // input on UI #2 #5 gdb_do_one_event #7 gdb_readline_wrapper #8 defaulted_query // for UI #1 #9 handle_command #10 execute_command ("handle SIGINT" .... #11 stdin_event_handler // input on UI #1 #12 gdb_do_one_event #13 gdb_readline_wrapper trying to answer the query on UI #1 will therefore answer for UI #2. By restricting the queries to the main UI, we ensure that there will never be more than one pending query, since you can't have two queries on a UI at the same time. I added a snippet to gdb.base/new-ui.exp to verify that we get a query on the main UI, but that we don't on the secondary one (or, more precisely, that it gets auto-answered). gdb/ChangeLog: * utils.c (defaulted_query): Don't query on secondary UIs. gdb/testsuite/ChangeLog: * gdb.base/new-ui.exp (do_test): Test queries behavior on main and extra UIs.
* Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchyPedro Alves2017-02-021-31/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
* New function null_streamYao Qi2017-01-261-0/+15
| | | | | | | | | | | | | | | This patch adds a new function null_stream, which returns a null stream. The null stream can be used in multiple places. It is used in gdb_insn_length, and the following patches will use it too. gdb: 2017-01-26 Yao Qi <yao.qi@linaro.org> * disasm.c (do_ui_file_delete): Delete. (gdb_insn_length): Move code creating stream to ... * utils.c (null_stream): ... here. New function. * utils.h (null_stream): Declare.
* Use class to manage BFD reference countsTom Tromey2017-01-101-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a new specialization of gdb::ref_ptr that can be used to manage BFD reference counts. Then it changes most places in gdb to use this new class, rather than explicit reference-counting or cleanups. This patch removes make_cleanup_bfd_unref. If you look you will see a couple of spots using "release" where a use of gdb_bfd_ref_ptr would be cleaner. These will be fixed in the next patch. I think this patch fixes some latent bugs. For example, it seems to me that previously objfpy_add_separate_debug_file leaked a BFD. I'm not 100% certain that the macho_symfile_read_all_oso change is correct. The existing code here is hard for me to follow. One goal of this sort of automated reference counting, though, is to make it more difficult to make logic errors; so hopefully the code is clear now. 2017-01-10 Tom Tromey <tom@tromey.com> * windows-tdep.c (windows_xfer_shared_library): Update. * windows-nat.c (windows_make_so): Update. * utils.h (make_cleanup_bfd_unref): Remove. * utils.c (do_bfd_close_cleanup, make_cleanup_bfd_unref): Remove. * symfile.h (symfile_bfd_open) (find_separate_debug_file_in_section): Return gdb_bfd_ref_ptr. * symfile.c (read_symbols, symbol_file_add) (separate_debug_file_exists): Update. (symfile_bfd_open): Return gdb_bfd_ref_ptr. (generic_load, reread_symbols): Update. * symfile-mem.c (symbol_file_add_from_memory): Update. * spu-linux-nat.c (spu_bfd_open): Return gdb_bfd_ref_ptr. (spu_symbol_file_add_from_memory): Update. * solist.h (struct target_so_ops) <bfd_open>: Return gdb_bfd_ref_ptr. (solib_bfd_fopen, solib_bfd_open): Return gdb_bfd_ref_ptr. * solib.c (solib_bfd_fopen, solib_bfd_open): Return gdb_bfd_ref_ptr. (solib_map_sections, reload_shared_libraries_1): Update. * solib-svr4.c (enable_break): Update. * solib-spu.c (spu_bfd_fopen): Return gdb_bfd_ref_ptr. * solib-frv.c (enable_break2): Update. * solib-dsbt.c (enable_break): Update. * solib-darwin.c (gdb_bfd_mach_o_fat_extract): Return gdb_bfd_ref_ptr. (darwin_solib_get_all_image_info_addr_at_init): Update. (darwin_bfd_open): Return gdb_bfd_ref_ptr. * solib-aix.c (solib_aix_bfd_open): Return gdb_bfd_ref_ptr. * record-full.c (record_full_save): Update. * python/py-objfile.c (objfpy_add_separate_debug_file): Update. * procfs.c (insert_dbx_link_bpt_in_file): Update. * minidebug.c (find_separate_debug_file_in_section): Return gdb_bfd_ref_ptr. * machoread.c (macho_add_oso_symfile): Change abfd to gdb_bfd_ref_ptr. (macho_symfile_read_all_oso): Update. (macho_check_dsym): Return gdb_bfd_ref_ptr. (macho_symfile_read): Update. * jit.c (bfd_open_from_target_memory): Return gdb_bfd_ref_ptr. (jit_bfd_try_read_symtab): Update. * gdb_bfd.h (gdb_bfd_open, gdb_bfd_fopen, gdb_bfd_openr) (gdb_bfd_openw, gdb_bfd_openr_iovec) (gdb_bfd_openr_next_archived_file, gdb_bfd_fdopenr): Return gdb_bfd_ref_ptr. (gdb_bfd_ref_policy): New struct. (gdb_bfd_ref_ptr): New typedef. * gdb_bfd.c (gdb_bfd_open, gdb_bfd_fopen, gdb_bfd_openr) (gdb_bfd_openw, gdb_bfd_openr_iovec) (gdb_bfd_openr_next_archived_file, gdb_bfd_fdopenr): Return gdb_bfd_ref_ptr. * gcore.h (create_gcore_bfd): Return gdb_bfd_ref_ptr. * gcore.c (create_gcore_bfd): Return gdb_bfd_ref_ptr. (gcore_command): Update. * exec.c (exec_file_attach): Update. * elfread.c (elf_symfile_read): Update. * dwarf2read.c (dwarf2_get_dwz_file): Update. (try_open_dwop_file, open_dwo_file): Return gdb_bfd_ref_ptr. (open_and_init_dwo_file): Update. (open_dwp_file): Return gdb_bfd_ref_ptr. (open_and_init_dwp_file): Update. * corelow.c (core_open): Update. * compile/compile-object-load.c (compile_object_load): Update. * common/gdb_ref_ptr.h (ref_ptr::operator->): New operator. * coffread.c (coff_symfile_read): Update. * cli/cli-dump.c (bfd_openr_or_error, bfd_openw_or_error): Return gdb_bfd_ref_ptr. Rename. (dump_bfd_file, restore_command): Update. * build-id.h (build_id_to_debug_bfd): Return gdb_bfd_ref_ptr. * build-id.c (build_id_to_debug_bfd): Return gdb_bfd_ref_ptr. (find_separate_debug_file_by_buildid): Update.
* Remove make_cleanup_htab_deleteTom Tromey2017-01-101-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes make_cleanup_htab_delete in favor of destructors, building on an earlier patch that added the htab_up typedef. Testing revealed that more cleanup-removal work was needed in dwarf2loc.c, so this version of the patch changes code there to use unordered_set and vector, removing some more cleanups. 2017-01-10 Tom Tromey <tom@tromey.com> * utils.h (make_cleanup_htab_delete): Don't declare. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete): Remove. * linespec.c (decode_compound_collector): Add constructor, destructor. (lookup_prefix_sym): Remove cleanup. (symtab_collector): Add constructor, destructor. (collect_symtabs_from_filename): Remove cleanup. * disasm.c (do_mixed_source_and_assembly): Use htab_up. * compile/compile-c-symbols.c (generate_c_for_variable_locations): Use htab_up. * gnu-v3-abi.c (gnuv3_print_vtable): Use htab_up. * dwarf2read.c (dw2_expand_symtabs_matching) (dw2_map_symbol_filenames, dwarf_decode_macros) (write_psymtabs_to_index): Use htab_up. * dwarf2loc.c (func_verify_no_selftailcall) (call_site_find_chain_1, func_verify_no_selftailcall) (chain_candidate, call_site_find_chain_1): Use std::unordered_set, std::vector, gdb::unique_xmalloc_ptr. (call_sitep): Remove typedef. (dwarf2_locexpr_baton_eval): Remove unused variable.
* Change return type of ui_out redirect to voidSimon Marchi2017-01-101-2/+1
| | | | | | | | | | | | | | | | | | | | | | All implementations of redirect/do_redirect in the ui_out subsystem always return 0 (success). We can therefore clean it up and make them return void. gdb/ChangeLog: * cli-out.c (cli_ui_out::do_redirect): Change return type to void. * cli-out.h (cli_ui_out::do_redirect): Likewise. * mi/mi-out.c (mi_ui_out::do_redirect): Likewise. * mi/mi-out.h (mi_ui_out::do_redirect): Likewise. * ui-out.c (ui_out::redirect): Likewise. * ui-out.h (ui_out::redirect, ui_out::do_redirect): Likewise. * cli/cli-logging.c (set_logging_redirect): Update call site of ui_out::redirect. (handle_redirections): Likewise. * scm-ports.c (ioscm_with_output_to_port_worker): Likewise. * top.c (execute_command_to_string): Likewise. * utils.c (do_ui_out_redirect_pop): Likewise.
* update copyright year range in GDB filesJoel Brobecker2017-01-011-1/+1
| | | | | | | | | This applies the second part of GDB's End of Year Procedure, which updates the copyright year range in all of GDB's files. gdb/ChangeLog: Update copyright year range in all GDB files.
* Class-ify ui_outSimon Marchi2016-12-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch finalizes the C++ conversion of the ui-out subsystem, by turning the ui_out and ui_out_impl structures into a single class hierarchy. ui_out functions are turned into virtual methods of that new class, so as a result there are a lot of call sites to update. In the previous version of the patchset, there were separate ui_out and ui_out_impl classes, but it wasn't really useful and added boilerplate. In this version there is simply an ui_out base class that is extended for CLI, TUI and MI. It's a bit hard to maintain a ChangeLog for such a big patch, I did my best but I'm sure there are some missing or outdated info in there... gdb/ChangeLog: * ui-out.h (ui_out_begin, ui_out_end, ui_out_table_header, ui_out_table_body, ui_out_field_int, ui_out_field_fmt_int, ui_out_field_core_addr, ui_out_field_string, ui_out_field_stream, ui_out_field_fmt, ui_out_field_skip, ui_out_spaces, ui_out_text, ui_out_message, ui_out_wrap_hint, ui_out_flush, ui_out_test_flags, ui_out_query_field, ui_out_is_mi_like_p, ui_out_redirect): Remove, replace with a method in class ui_out. (table_begin_ftype): Remove, replace with pure virtual method in class ui_out. (table_body_ftype): Likewise. (table_end_ftype): Likewise. (table_header_ftype): Likewise. (ui_out_begin_ftype): Likewise. (ui_out_end_ftype): Likewise. (field_int_ftype): Likewise. (field_skip_ftype): Likewise. (field_string_ftype): Likewise. (field_fmt_ftype): Likewise. (spaces_ftype): Likewise. (text_ftype): Likewise. (message_ftype): Likewise. (wrap_hint_ftype): Likewise. (flush_ftype): Likewise. (redirect_ftype): Likewise. (data_destroy_ftype): Likewise. (struct ui_out_impl): Remove, replace with class ui_out. (ui_out_new): Remove. (class ui_out): New class. * ui-out.c (struct ui_out): Remove, replaced with class ui_out. (current_level): Remove, replace with ui_out method. (push_level): Likewise. (pop_level): Likewise. (uo_table_begin, uo_table_body, uo_table_end, uo_table_header, uo_begin, uo_end, uo_field_int, uo_field_skip, uo_field_fmt, uo_spaces, uo_text, uo_message, uo_wrap_hint, uo_flush, uo_redirect, uo_field_string): Remove. (ui_out_table_begin): Replace with ... (ui_out::table_begin): ... this. (ui_out_table_body): Replace with ... (ui_out::table_body): ... this. (ui_out_table_end): Replace with ... (ui_out::table_end): ... this. (ui_out_table_header): Replace with ... (ui_out::table_header): ... this. (ui_out_begin): Replace with ... (ui_out::begin): ... this. (ui_out_end): Replace with ... (ui_out::end): ... this. (ui_out_field_int): Replace with ... (ui_out::field_int): ... this. (ui_out_field_fmt_int): Replace with ... (ui_out::field_fmt_int): ... this. (ui_out_field_core_addr): Replace with ... (ui_out::field_core_addr): ... this. (ui_out_field_stream): Replace with ... (ui_out::field_stream): ... this. (ui_out_field_skip): Replace with ... (ui_out::field_skip): ... this. (ui_out_field_string): Replace with ... (ui_out::field_string): ... this. (ui_out_field_fmt): Replace with ... (ui_out::field_fmt): ... this. (ui_out_spaces): Replace with ... (ui_out::spaces): ... this. (ui_out_text): Replace with ... (ui_out::text): ... this. (ui_out_message): Replace with ... (ui_out::message): ... this. (ui_out_wrap_hint): Replace with ... (ui_out::wrap_hint): ... this. (ui_out_flush): Replace with ... (ui_out::flush): ... this. (ui_out_redirect): Replace with ... (ui_out::redirect): ... this. (ui_out_test_flags): Replace with ... (ui_out::test_flags): ... this. (ui_out_is_mi_like_p): Replace with ... (ui_out::is_mi_like_p): ... this. (verify_field): Replace with ... (ui_out::verify_field): ... this. (ui_out_query_field): Replace with ... (ui_out::query_table_field): ... this. (ui_out_data): Remove. (ui_out_new): Remove, replace with ... (ui_out::ui_out): ... this constructor. (do_cleanup_table_end, make_cleanup_ui_out_tuple_begin_end, do_cleanup_end, make_cleanup_ui_out_tuple_begin_end, make_cleanup_ui_out_list_begin_end): Update fallouts of struct ui_out -> class ui_out change. * cli-out.c (cli_out_data): Remove. (cli_uiout_dtor): Remove. (cli_table_begin): Replace with ... (cli_ui_out::do_table_begin): ... this new method. (cli_table_body): Replace with ... (cli_ui_out::do_table_body): ... this new method. (cli_table_end): Replace with ... (cli_ui_out::do_table_end): ... this new method. (cli_table_header): Replace with ... (cli_ui_out::do_table_header): ... this new method. (cli_begin): Replace with ... (cli_ui_out::do_begin): ... this new method. (cli_end): Replace with ... (cli_ui_out::do_end): ... this new method. (cli_field_int): Replace with ... (cli_ui_out::do_field_int): ... this new method. (cli_field_skip): Replace with ... (cli_ui_out::do_field_skip): ... this new method. (cli_field_string): Replace with ... (cli_ui_out::do_field_string): ... this new method. (cli_field_fmt): Replace with ... (cli_ui_out::do_field_fmt): ... this new method. (cli_spaces): Replace with ... (cli_ui_out::do_spaces): ... this new method. (cli_text): Replace with ... (cli_ui_out::do_text): ... this new method. (cli_message): Replace with ... (cli_ui_out::do_message): ... this new method. (cli_wrap_hint): Replace with ... (cli_ui_out::do_wrap_hint): ... this new method. (cli_flush): Replace with ... (cli_ui_out::do_flush): ... this new method. (cli_redirect): Replace with ... (cli_ui_out::do_redirect): ... this new method. (out_field_fmt): Replace with ... (cli_ui_out::out_field_fmt): ... this new method. (field_separator): Replace with ... (cli_ui_out::field_separator): ... this new method. (cli_out_set_stream): Replace with ... (cli_ui_out::set_stream): ... this new method. (cli_ui_out_impl): Remove. (cli_out_data_ctor): Remove. (cli_ui_out_impl::cli_ui_out_impl): New constructor. (cli_ui_out_impl::~cli_ui_out_impl): New destructor. (cli_out_new): Change return type to cli_ui_out *, instantiate a cli_ui_out. * cli-out.h (cli_ui_out_data): Remove, replace with class cli_ui_out. (class cli_ui_out): New class. (cli_ui_out_impl): Remove. (cli_out_data_ctor): Remove. (cli_out_new): Change return type to cli_ui_out*. (cli_out_set_stream): Remove. * cli/cli-interp.c (struct cli_interp) <cli_uiout>: Change type to cli_ui_out*. (cli_interpreter_resume): Adapt. (cli_interpreter_exec): Adapt. * mi/mi-out.c (mi_ui_out_data, mi_out_data): Remove. (mi_ui_out_impl): Remove. (mi_table_begin): Replace with ... (mi_ui_out::do_table_begin): ... this. (mi_table_body): Replace with ... (mi_ui_out::do_table_body): ... this. (mi_table_end): Replace with ... (mi_ui_out::do_table_end): ... this. (mi_table_header): Replace with ... (mi_ui_out::do_table_header): ... this. (mi_begin): Replace with ... (mi_ui_out::do_begin): ... this. (mi_end): Replace with ... (mi_ui_out::do_end): ... this. (mi_field_int): Replace with ... (mi_ui_out::do_field_int): ... this. (mi_field_skip): Replace with ... (mi_ui_out::do_field_skip): ... this. (mi_field_string): Replace with ... (mi_ui_out::do_field_string): ... this. (mi_field_fmt): Replace with ... (mi_ui_out::do_field_fmt): ... this. (mi_spaces): Replace with ... (mi_ui_out::do_spaces): ... this. (mi_text): Replace with ... (mi_ui_out::do_text): ... this. (mi_message): Replace with ... (mi_ui_out::do_message): ... this. (mi_wrap_hint): Replace with ... (mi_ui_out::do_wrap_hint): ... this. (mi_flush): Replace with ... (mi_ui_out::do_flush): ... this. (mi_redirect): Replace with ... (mi_ui_out::do_redirect): (field_separator): Replace with ... (mi_ui_out::field_separator): (mi_open): Replace with ... (mi_ui_out::open): ... this. (mi_close): Replace with ... (mi_ui_out::close): ... this. (mi_out_rewind): Replace with ... (mi_ui_out::rewind): ... this. (mi_out_put): Replace with ... (mi_ui_out::put): ... this. (mi_version): Replace with ... (mi_ui_out::version): ... this. (mi_out_data_ctor): Replace with ... (mi_ui_out::mi_ui_out): ... this. (mi_out_data_dtor): Replace with ... (mi_ui_out::~mi_ui_out): ... this. (mi_out_new): Change return type to mi_ui_out*, instantiate an mi_ui_out object. (as_mi_ui_out): New function. (mi_version): Update fallouts of struct ui_out to class ui_out transition. (mi_out_put): Likewise. (mi_out_rewind): Likewise. * mi/mi-out.h (mi_out_new): Change return type to mi_ui_out*. * tui/tui-out.c (tui_ui_out_data, tui_out_data, tui_ui_out_impl): Remove. (tui_field_int): Replace with ... (tui_ui_out::do_field_int): ... this. (tui_field_string): Replace with ... (tui_ui_out::do_field_string): ... this. (tui_field_fmt): Replace with ... (tui_ui_out::do_field_fmt): ... this. (tui_text): Replace with ... (tui_ui_out::do_text): ... this. (tui_out_new): Change return type to tui_ui_out*, instantiate tui_ui_out object. (tui_ui_out::tui_ui_out): New. * tui/tui-out.h: New file. * tui/tui.h (tui_out_new): Move declaration to tui/tui-out.h. * tui/tui-io.c: Include tui/tui-out.h. (tui_old_uiout): Change type to cli_ui_out*. (tui_setup_io): Use dynamic_cast. * tui/tui-io.h (tui_old_uiout): Change type to cli_ui_out*. * tui/tui-interp.c (tui_resume): Adapt. * ada-lang.c (print_it_exception): Update fallouts of struct ui_out to class ui_out transition. (print_one_exception): Likewise. (print_mention_exception): Likewise. * ada-tasks.c (print_ada_task_info): Likewise. (info_task): Likewise. (task_command): Likewise. * auto-load.c (print_script): Likewise. (auto_load_info_scripts): Likewise. (info_auto_load_cmd): Likewise. * break-catch-sig.c (signal_catchpoint_print_one): Likewise. * break-catch-syscall.c (print_it_catch_syscall): Likewise. (print_one_catch_syscall): Likewise. * break-catch-throw.c (print_it_exception_catchpoint): Likewise. (print_one_exception_catchpoint): Likewise. (print_one_detail_exception_catchpoint): Likewise. (print_mention_exception_catchpoint): Likewise. * breakpoint.c (maybe_print_thread_hit_breakpoint): Likewise. (print_solib_event): Likewise. (watchpoint_check): Likewise. (wrap_indent_at_field): Likewise. (print_breakpoint_location): Likewise. (output_thread_groups): Likewise. (print_one_breakpoint_location): Likewise. (breakpoint_1): Likewise. (default_collect_info): Likewise. (watchpoints_info): Likewise. (print_it_catch_fork): Likewise. (print_one_catch_fork): Likewise. (print_it_catch_vfork): Likewise. (print_one_catch_vfork): Likewise. (print_it_catch_solib): Likewise. (print_one_catch_solib): Likewise. (print_it_catch_exec): Likewise. (print_one_catch_exec): Likewise. (mention): Likewise. (print_it_ranged_breakpoint): Likewise. (print_one_ranged_breakpoint): Likewise. (print_one_detail_ranged_breakpoint): Likewise. (print_mention_ranged_breakpoint): Likewise. (print_it_watchpoint): Likewise. (print_mention_watchpoint): Likewise. (print_it_masked_watchpoint): Likewise. (print_one_detail_masked_watchpoint): Likewise. (print_mention_masked_watchpoint): Likewise. (bkpt_print_it): Likewise. (tracepoint_print_one_detail): Likewise. (tracepoint_print_mention): Likewise. (update_static_tracepoint): Likewise. (tracepoints_info): Likewise. (save_breakpoints): Likewise. * cli/cli-cmds.c (complete_command): Likewise. * cli/cli-logging.c (set_logging_redirect): Likewise. (pop_output_files): Likewise. (handle_redirections): Likewise. * cli/cli-script.c (print_command_lines): Likewise. * cli/cli-setshow.c (do_show_command): Likewise. (cmd_show_list): Likewise. * cp-abi.c (list_cp_abis): Likewise. (show_cp_abi_cmd): Likewise. * darwin-nat-info.c (darwin_debug_regions_recurse): Likewise. * disasm.c (gdb_pretty_print_insn): Likewise. (do_mixed_source_and_assembly_deprecated): Likewise. (do_mixed_source_and_assembly): Likewise. * gdb_bfd.c (print_one_bfd): Likewise. (maintenance_info_bfds): Likewise. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Likewise. * guile/scm-ports.c (ioscm_with_output_to_port_worker): Likewise. * i386-linux-tdep.c (i386_linux_handle_segmentation_fault): Likewise. * i386-tdep.c (i386_mpx_print_bounds): Likewise. * infcmd.c (run_command_1): Likewise. (print_return_value_1): Likewise. * inferior.c (print_selected_inferior): Likewise. (print_inferior): Likewise. * infrun.c (print_end_stepping_range_reason): Likewise. (print_signal_exited_reason): Likewise. (print_exited_reason): Likewise. (print_signal_received_reason): Likewise. (print_no_history_reason): Likewise. * interps.c (interp_set): Likewise. * linespec.c (decode_line_full): Likewise. * linux-thread-db.c (info_auto_load_libthread_db): Likewise. * mi/mi-cmd-env.c (mi_cmd_env_pwd): Likewise. (mi_cmd_env_path): Likewise. (mi_cmd_env_dir): Likewise. (mi_cmd_inferior_tty_show): Likewise. * mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_file): Likewise. (print_partial_file_name): Likewise. (mi_cmd_file_list_exec_source_files): Likewise. * mi/mi-cmd-info.c (mi_cmd_info_ada_exceptions): Likewise. (mi_cmd_info_gdb_mi_command): Likewise. * mi/mi-cmd-stack.c (mi_cmd_stack_info_depth): Likewise. (mi_cmd_stack_list_args): Likewise. (list_arg_or_local): Likewise. * mi/mi-cmd-var.c (print_varobj): Likewise. (mi_cmd_var_create): Likewise. (mi_cmd_var_delete): Likewise. (mi_cmd_var_set_format): Likewise. (mi_cmd_var_show_format): Likewise. (mi_cmd_var_info_num_children): Likewise. (mi_cmd_var_list_children): Likewise. (mi_cmd_var_info_type): Likewise. (mi_cmd_var_info_path_expression): Likewise. (mi_cmd_var_info_expression): Likewise. (mi_cmd_var_show_attributes): Likewise. (mi_cmd_var_evaluate_expression): Likewise. (mi_cmd_var_assign): Likewise. (varobj_update_one): Likewise. * mi/mi-interp.c (as_mi_interp): Likewise. (mi_on_normal_stop_1): Likewise. (mi_tsv_modified): Likewise. (mi_breakpoint_created): Likewise. (mi_breakpoint_modified): Likewise. (mi_solib_loaded): Likewise. (mi_solib_unloaded): Likewise. (mi_command_param_changed): Likewise. (mi_memory_changed): Likewise. (mi_user_selected_context_changed): Likewise. * mi/mi-main.c (print_one_inferior): Likewise. (output_cores): Likewise. (list_available_thread_groups): Likewise. (mi_cmd_data_list_register_names): Likewise. (mi_cmd_data_list_changed_registers): Likewise. (output_register): Likewise. (mi_cmd_data_evaluate_expression): Likewise. (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_read_memory_bytes): Likewise. (mi_cmd_list_features): Likewise. (mi_cmd_list_target_features): Likewise. (mi_cmd_add_inferior): Likewise. (mi_execute_command): Likewise. (mi_load_progress): Likewise. (print_variable_or_computed): Likewise. (mi_cmd_trace_frame_collected): Likewise. * mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines): Likewise. * osdata.c (info_osdata_command): Likewise. * probe.c (gen_ui_out_table_header_info): Likewise. (print_ui_out_not_applicables): Likewise. (print_ui_out_info): Likewise. (info_probes_for_ops): Likewise. (enable_probes_command): Likewise. (disable_probes_command): Likewise. * progspace.c (print_program_space): Likewise. * python/py-breakpoint.c (bppy_get_commands): Likewise. * python/py-framefilter.c (py_print_type): Likewise. (py_print_value): Likewise. (py_print_single_arg): Likewise. (enumerate_args): Likewise. (enumerate_locals): Likewise. (py_print_args): Likewise. (py_print_frame): Likewise. * record-btrace.c (btrace_ui_out_decode_error): Likewise. (btrace_call_history_insn_range): Likewise. (btrace_call_history_src_line): Likewise. (btrace_call_history): Likewise. * remote.c (show_remote_cmd): Likewise. * skip.c (skip_info): Likewise. * solib.c (info_sharedlibrary_command): Likewise. * source.c (print_source_lines_base): Likewise. * spu-tdep.c (info_spu_event_command): Likewise. (info_spu_signal_command): Likewise. (info_spu_mailbox_list): Likewise. (info_spu_dma_cmdlist): Likewise. (info_spu_dma_command): Likewise. (info_spu_proxydma_command): Likewise. * stack.c (print_stack_frame): Likewise. (print_frame_arg): Likewise. (read_frame_arg): Likewise. (print_frame_args): Likewise. (print_frame_info): Likewise. (print_frame): Likewise. * symfile.c (load_progress): Likewise. (generic_load): Likewise. (print_transfer_performance): Likewise. * thread.c (do_captured_list_thread_ids): Likewise. (print_thread_info_1): Likewise. (restore_selected_frame): Likewise. (do_captured_thread_select): Likewise. (print_selected_thread_frame): Likewise. * top.c (execute_command_to_string): Likewise. * tracepoint.c (tvariables_info_1): Likewise. (trace_status_mi): Likewise. (tfind_1): Likewise. (print_one_static_tracepoint_marker): Likewise. (info_static_tracepoint_markers_command): Likewise. * utils.c (do_ui_out_redirect_pop): Likewise. (fputs_maybe_filtered): Likewise.
* Constify wrap_here/wrap_hint code pathSimon Marchi2016-11-261-2/+2
| | | | | | | | | | | | | | | | Constify the data path between ui_out_wrap_hint and the wrap_indent global, because we can. It's clearer that the argument passed to wrap_hint is not intended to be modified by the ui_out implementation. gdb/ChangeLog: * mi/mi-out.c (mi_wrap_hint): Constify argument. * cli-out.c (cli_wrap_hint): Likewise. * ui-out.c (ui_out_wrap_hint, uo_wrap_hint): Likewise. * ui-out.h (ui_out_wrap_hint, wrap_hint_ftype): Likewise. * utils.c (wrap_here): Likewise. (wrap_indent): Constify. * utils.h (wrap_here): Constify argument.
* gdb: Use C++11 std::chronoPedro Alves2016-11-231-34/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a few problems with GDB's time handling. #1 - It avoids problems with gnulib's C++ namespace support On MinGW, the struct timeval that should be passed to gnulib's gettimeofday replacement is incompatible with libiberty's timeval_sub/timeval_add. That's because gnulib also replaces "struct timeval" with its own definition, while libiberty expects the system's. E.g., in code like this: gettimeofday (&prompt_ended, NULL); timeval_sub (&prompt_delta, &prompt_ended, &prompt_started); timeval_add (&prompt_for_continue_wait_time, &prompt_for_continue_wait_time, &prompt_delta); That's currently handled in gdb by not using gnulib's gettimeofday at all (see common/gdb_sys_time.h), but that #undef hack won't work with if/when we enable gnulib's C++ namespace support, because that mode adds compile time warnings for uses of ::gettimeofday, which are hard errors with -Werror. #2 - But there's an elephant in the room: gettimeofday is not monotonic... We're using it to: a) check how long functions take, for performance analysis b) compute when in the future to fire events in the event-loop c) print debug timestamps But that's exactly what gettimeofday is NOT meant for. Straight from the man page: ~~~ The time returned by gettimeofday() is affected by discontinuous jumps in the system time (e.g., if the system administrator manually changes the system time). If you need a monotonically increasing clock, see clock_gettime(2). ~~~ std::chrono (part of the C++11 standard library) has a monotonic clock exactly for such purposes (std::chrono::steady_clock). This commit switches to use that instead of gettimeofday, fixing all the issues mentioned above. gdb/ChangeLog: 2016-11-23 Pedro Alves <palves@redhat.com> * Makefile.in (SFILES): Add common/run-time-clock.c. (HFILES_NO_SRCDIR): Add common/run-time-clock.h. (COMMON_OBS): Add run-time-clock.o. * common/run-time-clock.c, common/run-time-clock.h: New files. * defs.h (struct timeval, print_transfer_performance): Delete declarations. * event-loop.c (struct gdb_timer) <when>: Now a std::chrono::steady_clock::time_point. (create_timer): use std::chrono::steady_clock instead of gettimeofday. Use new instead of malloc. (delete_timer): Use delete instead of xfree. (duration_cast_timeval): New. (update_wait_timeout): Use std::chrono::steady_clock instead of gettimeofday. * maint.c: Include <chrono> instead of "gdb_sys_time.h", <time.h> and "timeval-utils.h". (scoped_command_stats::~scoped_command_stats) (scoped_command_stats::scoped_command_stats): Use std::chrono::steady_clock instead of gettimeofday. Use user_cpu_time_clock instead of get_run_time. * maint.h: Include "run-time-clock.h" and <chrono>. (scoped_command_stats): <m_start_cpu_time>: Now a user_cpu_time_clock::time_point. <m_start_wall_time>: Now a std::chrono::steady_clock::time_point. * mi/mi-main.c: Include "run-time-clock.h" and <chrono> instead of "gdb_sys_time.h" and <sys/resource.h>. (rusage): Delete. (mi_execute_command): Use new instead of XNEW. (mi_load_progress): Use std::chrono::steady_clock instead of gettimeofday. (timestamp): Rewrite in terms of std::chrono::steady_clock, user_cpu_time_clock and system_cpu_time_clock. (timeval_diff): Delete. (print_diff): Adjust to use std::chrono::steady_clock, user_cpu_time_clock and system_cpu_time_clock. * mi/mi-parse.h: Include "run-time-clock.h" and <chrono> instead of "gdb_sys_time.h". (struct mi_timestamp): Change fields types to std::chrono::steady_clock::time_point, user_cpu_time_clock::time and system_cpu_time_clock::time_point, instead of struct timeval. * symfile.c: Include <chrono> instead of <time.h> and "gdb_sys_time.h". (struct time_range): New. (generic_load): Use std::chrono::steady_clock instead of gettimeofday. (print_transfer_performance): Replace timeval parameters with a std::chrono::steady_clock::duration parameter. Adjust. * utils.c: Include <chrono> instead of "timeval-utils.h", "gdb_sys_time.h", and <time.h>. (prompt_for_continue_wait_time): Now a std::chrono::steady_clock::duration. (defaulted_query, prompt_for_continue): Use std::chrono::steady_clock instead of gettimeofday/timeval_sub/timeval_add. (reset_prompt_for_continue_wait_time): Use std::chrono::steady_clock::duration instead of struct timeval. (get_prompt_for_continue_wait_time): Return a std::chrono::steady_clock::duration instead of struct timeval. (vfprintf_unfiltered): Use std::chrono::steady_clock instead of gettimeofday. Use std::string. Use '.' instead of ':'. * utils.h: Include <chrono>. (get_prompt_for_continue_wait_time): Return a std::chrono::steady_clock::duration instead of struct timeval. gdb/gdbserver/ChangeLog: 2016-11-23 Pedro Alves <palves@redhat.com> * debug.c: Include <chrono> instead of "gdb_sys_time.h". (debug_vprintf): Use std::chrono::steady_clock instead of gettimeofday. Use '.' instead of ':'. * tracepoint.c: Include <chrono> instead of "gdb_sys_time.h". (get_timestamp): Use std::chrono::steady_clock instead of gettimeofday.
* Use ui_file_as_string in gdb/utils.cPedro Alves2016-11-081-3/+2
| | | | | | | gdb/ChangeLog: 2016-11-08 Pedro Alves <palves@redhat.com> * utils.c (error_stream): Use ui_file_as_string and std::string.
* Fix a few typosSimon Marchi2016-11-041-2/+2
| | | | | | | | | | | | | gdb/ChangeLog: * maint.c (scoped_command_stats::scoped_command_stats): Fix typo. * ppcnbsd-tdep.c (_initialize_ppcnbsd_tdep): Likewise. * ppcobsd-tdep.c (_initialize_ppcobsd_tdep): Likewise. * ui-out.c (ui_out_new): Likewise. * utils.c (init_page_info): Likewise. (reset_prompt_for_continue_wait_time): Likewise. * windows-nat.c (windows_init_thread_list): Likewise. * xtensa-tdep.c (call0_analyze_prologue): Likewise.
* Use scoped_restore for ui_fileTom Tromey2016-10-211-29/+0
| | | | | | | | | | | | | | This replaces all the uses of make_cleanup_restore_ui_file with scoped_restore. 2016-10-21 Tom Tromey <tom@tromey.com> * utils.c (make_cleanup_restore_ui_file, do_restore_ui_file) (struct restore_ui_file_closure): Remove. * utils.h (make_cleanup_restore_ui_file): Don't declare. * guile/scm-ports.c (ioscm_with_output_to_port_worker): Use scoped_restore. * top.c (execute_command_to_string): Use scoped_restore.
* Remove Java supportTom Tromey2016-10-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the Java support from gdb. gcj has not seen much development or use for years now, and was recently removed from GCC. This patch changes gdb to follow; in the unlikely event that there are still users using gcj, they can continue to use an older gdb to debug. Or, they can debug in C++ mode. Built and regtested on x86-64 Fedora 24. 2016-10-06 Tom Tromey <tom@tromey.com> * MAINTAINERS: Remove Java test maintainer. * varobj.h (java_varobj_ops): Don't declare. * valprint.h (struct value_print_options) <pascal_static_field_print>: Update comment. * utils.c (producer_is_gcc): Remove java reference. * symtab.h (struct general_symbol_info): Remove java references. (SYMBOL_SEARCH_NAME): Likewise. * objfiles.c (allocate_objfile): Update comment. * linespec.c (find_linespec_symbols): Remove java references. * gnu-v3-abi.c (gnuv3_rtti_type, gnuv3_baseclass_offset): Remove java references. * gdbtypes.h (struct cplus_struct_type) <is_java>: Remove. (TYPE_CPLUS_REALLY_JAVA): Remove. * c-varobj.c (enum vsections): Update comment. * symtab.c (symbol_set_language, symbol_set_names) (symbol_natural_name, symbol_demangled_name) (demangle_for_lookup, symbol_matches_domain) (default_make_symbol_completion_list_break_on_1): Remove java references. (JAVA_PREFIX, JAVA_PREFIX_LEN): Remove. * psymtab.c (match_partial_symbol, psymtab_search_name) (lookup_partial_symbol): Remove java references. * dwarf2read.c (find_slot_in_mapped_hash): Remove java references. (add_partial_symbol, dwarf2_compute_name, dwarf2_physname) (dwarf2_add_member_fn, is_vtable_name, read_structure_type) (process_structure_scope, read_subroutine_type) (read_subrange_type, load_partial_dies) (new_symbol_full, determine_prefix, typename_concat) (dwarf2_name): Remove java references. (set_cu_language): Treat Java as C++. * c-typeprint.c (c_type_print_args): Remove java reference. * defs.h (enum language) <language_java>: Remove. * Makefile.in (SFILES, HFILES_NO_SRCDIR, COMMON_OBS, YYFILES) (YYOBJ, local-maintainer-clean): Don't mention java files. * jv-exp.y, jv-lang.c, jv-lang.h, jv-typeprint.c, jv-valprint.c, jv-varobj.c: Remove. 2016-10-06 Tom Tromey <tom@tromey.com> * guile.texi (Types In Guile): Remove Java mentions. * python.texi (Types In Python): Remove Java mentions. * gdb.texinfo (Address Locations, Supported Languages) (Index Section Format): Remove Java mentions. 2016-10-06 Tom Tromey <tom@tromey.com> * gdb.compile/compile.exp: Change java tests to rust. * gdb.base/setshow.exp: Change java tests to rust. * gdb.base/default.exp: Remove java from language list. * README (Examples): Update language example. * gdb.python/py-lookup-type.exp (test_lookup_type): Remove java test. * lib/gdb.exp (skip_java_tests): Remove. * lib/java.exp: Remove. * gdb.java: Remove.
* Use std::string rather than dyn-stringTom Tromey2016-09-231-13/+0
| | | | | | | | | | | | | | | | This patch changes some code in cli-cmds.c to use std::string rather than dyn-string, removing some cleanups. Since this was the last use of dyn-string in gdb, this patch also removes make_cleanup_dyn_string_delete. 2016-09-23 Tom Tromey <tom@tromey.com> * utils.h (make_cleanup_dyn_string_delete): Remove declaration. * utils.c: Don't include dyn-string.h. (do_dyn_string_delete, make_cleanup_dyn_string_delete): Remove. * cli/cli-cmds.c: Include <string>. Don't include dyn-string.h. (argv_to_string): Rename. Change return type to std::string. (alias_command): Use std::string.
* Remove some unnecessary codeTom Tromey2016-09-231-6/+0
| | | | | | | | | | | | | | | | | | This patch removes some unnecessary code. In particular, terminate_minimal_symbol_table is declared in minsyms.h, so it doesn't need to be declared in objfiles.h as well. And, restore_ui_out_closure was rendered unnecessary by an earlier patch, so the structure definition can be removed now. I'm checking this in as obvious. Tested by rebuilding on x86-64 Fedora 24 with --enable-targets=all; which would notice any missing includes of minsyms.h. 2016-09-23 Tom Tromey <tom@tromey.com> * utils.c (struct restore_ui_out_closure): Remove. * objfiles.h (terminate_minimal_symbol_table): Don't declare.
* Introduce cleanup to restore current_uioutSimon Marchi2016-09-161-23/+0
| | | | | | | | | | | | | | | | | | Make a globally available cleanup from a pre-existing one in infrun.c. This is used in a following patch. gdb/ChangeLog: * infrun.c (restore_current_uiout_cleanup): Move to ui-out.c. (print_stop_event): Use make_cleanup_restore_current_uiout. * python/python.c (execute_gdb_command): Likewise. * ui-out.c (restore_current_uiout_cleanup): Move from infrun.c. (make_cleanup_restore_current_uiout): New function definition. * ui-out.h (make_cleanup_restore_current_uiout): New function declaration. * utils.c (do_restore_ui_out): Remove. (make_cleanup_restore_ui_out): Remove. * utils.h (make_cleanup_restore_ui_out): Remove.
* Fix PR gdb/20418 - Problems with synchronous commands and new-uiPedro Alves2016-08-091-10/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When executing commands on a secondary UI running the MI interpreter, some commands that should be synchronous are not. MI incorrectly continues processing input right after the synchronous command is sent, before the target stops. The problem happens when we emit MI async events (=library-loaded, etc.), and we go about restoring the previous terminal state, we end up calling target_terminal_ours, which incorrectly always installs the current UI's input_fd in the event loop... That is, code like this: old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "library-loaded"); ... do_cleanups (old_chain); The fix is to move the add_file_handler/delete_file_handler calls out of target_terminal_$foo, making these completely no-ops unless called with the main UI as current UI. gdb/ChangeLog: 2016-08-09 Pedro Alves <palves@redhat.com> PR gdb/20418 * event-top.c (ui_register_input_event_handler) (ui_unregister_input_event_handler): New functions. (async_enable_stdin): Register input in the event loop. (async_disable_stdin): Unregister input from the event loop. (gdb_setup_readline): Register input in the event loop. * infrun.c (check_curr_ui_sync_execution_done): Register input in the event loop. * target.c (target_terminal_inferior): Don't unregister input from the event loop. (target_terminal_ours): Don't register input in the event loop. * target.h (target_terminal_inferior) (target_terminal_ours_for_output, target_terminal_ours): Update comments. * top.h (ui_register_input_event_handler) (ui_unregister_input_event_handler): New declarations. * utils.c (ui_unregister_input_event_handler_cleanup) (prepare_to_handle_input): New functions. (defaulted_query, prompt_for_continue): Use prepare_to_handle_input. gdb/testsuite/ChangeLog: 2016-08-09 Pedro Alves <palves@redhat.com> Simon Marchi <simon.marchi@ericsson.com> PR gdb/20418 * gdb.mi/new-ui-mi-sync.c, gdb.mi/new-ui-mi-sync.exp: New files. * lib/mi-support.exp (mi_expect_interrupt): Remove anchors.
* Make stdin be per UIPedro Alves2016-06-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit makes each UI have its own "stdin" stream pointer. This is used to determine whether the "from_tty" argument to execute_command, etc. should be true. Related, this commit makes input_from_terminal_p take an UI parameter, and then avoids the gdb_has_a_terminal in it. gdb_has_a_terminal only returns info on gdb's own main/primary terminal (the real stdin). However, the places that call input_from_terminal_p really want to know is whether the command came from an interactive tty. This patch thus renames input_from_terminal_p to input_interactive_p for clarity, and then makes input_interactive_p check for "set interactive" itself, along with ISATTY, instead of calling gdb_has_a_terminal. Actually, quit_force wants to call input_interactive_p _after_ stdin is closed, we can't call ISATTY that late. So instead we save the result of ISATTY in a field of the UI. gdb/ChangeLog: 2016-06-21 Pedro Alves <palves@redhat.com> * cli/cli-script.c (read_next_line): Adjust to per-UI stdin. (read_command_lines): Use input_interactive_p instead of input_from_terminal_p. * defs.h (struct ui): Forward declare. (input_from_terminal_p): Rename to ... (input_interactive_p): ... this. * event-top.c (stdin_event_handler): Pass 0 as from_tty argument to quit_command. (command_handler): Adjust to per-UI stdin. (handle_line_of_input): Adjust to per-UI stdin and use input_interactive_p instead of ISATTY and input_from_terminal_p. (gdb_readline_no_editing_callback): Adjust to per-UI stdin. (command_line_handler): Always pass true as "from_tty" parameter of handle_line_of_input and execute_command. (async_sigterm_handler): Pass 0 as from_tty argument to quit_command. * inflow.c (interactive_mode, show_interactive_mode): Moved to ... (gdb_has_a_terminal): Don't check interactive_mode here. (_initialize_inflow): Don't install "set interactive-mode" here. * main.c (captured_command_loop): Adjust to per-UI stdin. * mi/mi-interp.c (mi_execute_command_wrapper): Adjust to per-UI stdin. * top.c (new_ui): Save the stdin stream and whether it's a tty. (dont_repeat): Adjust to per-UI stdin. (command_line_input): Adjust to per-UI stdin and to use input_interactive_p. (quit_force): Write history if any UI supports interactive input. (interactive_mode, show_interactive_mode): Move here, from inflow.c. (input_from_terminal_p): Rename to ... (input_interactive_p): ... this, and check the "interactive_mode" global instead of calling gdb_has_a_terminal. (_initialize_top): Install "set interactive-mode" here. * top.h (struct ui) <stdin_stream, input_interactive_p>: New fields. * utils.c (quit): Pass 0 as from_tty argument to quit_force. (defaulted_query): Adjust to per-UI stdin and to use input_interactive_p.
* Make instream be per UIPedro Alves2016-06-211-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gdb/ChangeLog: 2016-06-21 Pedro Alves <palves@redhat.com> * cli/cli-script.c (execute_user_command, read_next_line) (read_next_line): Adjust to per-UI instream. * event-top.c (stdin_event_handler, command_handler) (handle_line_of_input, command_line_handler) (gdb_readline_no_editing_callback, async_sigterm_handler) (gdb_setup_readline): Likewise. * inflow.c: Include top.h. (gdb_has_a_terminal, child_terminal_init_with_pgrp) (gdb_save_tty_state, child_terminal_inferior) (child_terminal_ours_1, copy_terminal_info): Use the main UI. (initialize_stdin_serial): Adjust to per-UI instream. * main.c (captured_command_loop, captured_main): Adjust to per-UI instream. * mi/mi-interp.c (mi_execute_command_wrapper): Likewise. * python/python.c (python_interactive_command): Likewise. * terminal.h (struct ui): Forward declare. (initialize_stdin_serial): Add struct ui parameter. * top.c (instream): Delete. (do_restore_instream_cleanup, read_command_file, dont_repeat) (gdb_readline_no_editing, command_line_input) (input_from_terminal_p, gdb_init): Adjust to per-UI instream. * top.h (struct ui) <instream>: New field. (instream): Delete declaration. (quit): Adjust to per-UI instream. gdb/testsuite/ChangeLog: 2016-06-21 Pedro Alves <palves@redhat.com> * gdb.gdb/selftest.exp (do_steps_and_nexts): Add new regexp.
* Eliminate immediate_quitPedro Alves2016-04-121-13/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This finally gets rid of immediate_quit (and surrounding infrustruture), as nothing sets it anymore. gdb_call_async_signal_handler was only necessary in order to handle immediate_quit. We can just call mark_async_signal_handler directly on all hosts now. In turn, we can clean up mingw-hdep.c's gdb_select a bit, as sigint_event / sigint_handler is no longer needed. gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> * defs.h: Update comments on SIGINT handling. (immediate_quit): Delete declaration. * event-loop.c (call_async_signal_handler): Delete. * event-loop.h (call_async_signal_handler): Delete declaration. (mark_async_signal_handler): Update comments. (gdb_call_async_signal_handler): Delete declaration. * event-top.c (handle_sigint): Call mark_async_signal_handler instead of gdb_call_async_signal_handler. * exceptions.c (prepare_to_throw_exception): Remove reference to immediate_quit. (exception_fprintf): Remove comments about immediate_quit. * mingw-hdep.c (sigint_event, sigint_handler): Delete. (gdb_select): Don't wait on sigint_event. (gdb_call_async_signal_handler): Delete. (_initialize_mingw_hdep): Delete. * posix-hdep.c (gdb_call_async_signal_handler): Delete. * utils.c (immediate_quit): Delete.
* target remote: Don't rely on immediate_quit (introduce quit handlers)Pedro Alves2016-04-121-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remote.c is the last user of immediate_quit. It's relied on to immediately break the initial remote connection sync up, if the user does Ctrl-C, assuming that was because the target isn't responding. At that stage, since the connection isn't synced yet, disconnecting is the only safe thing to do. This commit reworks that, to not rely on throwing from the SIGINT signal handler. So, this commit: - Introduces the concept of a "quit handler". This is used to override what does the QUIT macro do when the quit flag is set. - Makes the "struct serial" reachar / write code call QUIT in the partial read/write loops, so the current quit handler is invoked whenever a serial->read_prim / serial->write_prim returns EINTR. - Makes the "struct serial" reachar / write code call interruptible_select instead of gdb_select, so that QUITs are detected in a race-free manner. - Stops remote.c from setting immediate_quit during the initial connection. - Instead, we install a custom quit handler whenever we're calling into the serial code. This custom quit handler knows to immediately throw a quit when we're in the initial connection setup, and otherwise defer handling the quit/Ctrl-C request to later, when we're safely out of a packet command/response sequence. This also is what is now responsible for handling "double Ctrl-C because target connection is stuck/wedged." - remote.c no longer installs a specialized SIGINT handlers, and instead re-uses the quit flag. Since we want to rely on the QUIT macro, the SIGINT handler must also set the quit. And the easiest is just to not install custom SIGINT handler in remote.c. Let the standard SIGINT handler do its job of setting the quit flag. Centralizing SIGINT handlers seems like a good thing to me, anyway. gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> * defs.h (quit_handler_ftype, quit_handler) (make_cleanup_override_quit_handler, default_quit_handler): New. (QUIT): Adjust comments. * event-top.c (default_quit_handler): New function. (quit_handler): New global. (struct quit_handler_cleanup_data): New. (restore_quit_handler, restore_quit_handler_dtor) (make_cleanup_override_quit_handler): New. (async_request_quit): Call QUIT. * remote.c (struct remote_state) <got_ctrlc_during_io>: New field. (async_sigint_remote_twice_token, async_sigint_remote_token): Delete. (remote_close): Update comments. (remote_start_remote): Don't set immediate_quit. Set starting_up earlier. (remote_serial_quit_handler, remote_unpush_and_throw): New functions. (remote_open_1): Clear got_ctrlc_during_io. Set remote_async_terminal_ours_p unconditionally. (async_initialize_sigint_signal_handler) (async_handle_remote_sigint, async_handle_remote_sigint_twice) (remote_check_pending_interrupt, async_remote_interrupt) (async_remote_interrupt_twice) (async_cleanup_sigint_signal_handler, ofunc) (sync_remote_interrupt, sync_remote_interrupt_twice): Delete. (remote_terminal_inferior, remote_terminal_ours): Remove async checks. (remote_wait_as): Don't install a SIGINT handler in sync mode. (readchar, remote_serial_write): Override the quit handler with remote_serial_quit_handler. (getpkt_or_notif_sane_1): Don't call QUIT. (initialize_remote_ops): Don't install remote_check_pending_interrupt. (_initialize_remote): Don't create async_sigint_remote_token and async_sigint_remote_twice_token. * ser-base.c (ser_base_wait_for): Call QUIT and use interruptible_select. (ser_base_write): Call QUIT. * ser-go32.c (dos_readchar, dos_write): Call QUIT. * ser-unix.c (wait_for): Don't use VTIME. Always take the gdb_select path, but call QUIT and interruptible_select. * utils.c (maybe_quit): Call the current quit handler. Don't call target_check_pending_interrupt. (defaulted_query, prompt_for_continue): Override the quit handler with the default quit handler.
* Do target_terminal_ours in query & friends instead of in all callersPedro Alves2016-04-121-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Any time a caller calls query & friends / prompt_for_continue without ensuring that gdb owns the terminal for input is a bug. So do that in defaulted_query / prompt_for_continue directly instead. An example of a case where we currently miss calling target_terminal_ours is internal_error. Ever since defaulted_query was made to use gdb_readline_callback, there's no way to answer the internal error query if the internal error happens while the target is has the terminal: (gdb) c Continuing. .../src/gdb/linux-nat.c:1676: internal-error: linux_nat_resume: Assertion `dummy_counter < 10' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) _ Entering 'y' or 'n' does not work, GDB does not respond. gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> PR gdb/19828 * gnu-nat.c (inf_validate_task_sc): Don't call target_terminal_ours / target_terminal_inferior around query. * i386-tdep.c (i386_record_lea_modrm, i386_process_record): Don't call target_terminal_ours / target_terminal_inferior around yquery. * linux-record.c (record_linux_system_call): Don't call target_terminal_ours / target_terminal_inferior around yquery. * nto-procfs.c (interrupt_query): Don't call target_terminal_ours / target_terminal_inferior around query. * record-full.c (record_full_check_insn_num): Remove 'set_terminal' parameter. Don't call target_terminal_ours / target_terminal_inferior around query. (record_full_message, record_full_registers_change) (record_full_xfer_partial): Adjust. * remote.c (interrupt_query): Don't call target_terminal_ours / target_terminal_inferior around query. * utils.c (defaulted_query): Install cleanup to restore target terminal. Put target_terminal_ours_for_output in effect while defaulted producing, and target_terminal_ours in in effect while handling input. (prompt_for_continue): Install cleanup to restore target terminal. Put target_terminal_ours in in effect while handling input.
* Add missing cleanups to defaulted_query and prompt_for_continuePedro Alves2016-04-121-4/+11
| | | | | | | | | Some of the error paths in these functions leak. gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> * utils.c (defaulted_query, prompt_for_continue): Free temporary strings with cleanups, instead of xfree.
* Use target_terminal_ours_for_output in warning/internal_errorPedro Alves2016-04-121-2/+12
| | | | | | | | | | | | | We're only doing output here, so leave raw/cooked mode alone, as well as the SIGINT handler. And restore terminal settings, while at it. gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> * utils.c (vwarning, internal_vproblem): Use make_cleanup_restore_target_terminal and target_terminal_ours_for_output.
* Don't set immediate_quit in prompt_for_continuePedro Alves2016-04-121-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | immediate_quit used to be necessary back when prompt_for_continue used blocking fread, but nowadays it uses gdb_readline_wrapper, which is implemented in terms of a nested event loop, which already knows how to react to SIGINT: #0 throw_it (reason=RETURN_QUIT, error=GDB_NO_ERROR, fmt=0x9d6d7e "Quit", ap=0x7fffffffcb88) at .../src/gdb/common/common-exceptions.c:324 #1 0x00000000007bab5d in throw_vquit (fmt=0x9d6d7e "Quit", ap=0x7fffffffcb88) at .../src/gdb/common/common-exceptions.c:366 #2 0x00000000007bac9f in throw_quit (fmt=0x9d6d7e "Quit") at .../src/gdb/common/common-exceptions.c:385 #3 0x0000000000773a2d in quit () at .../src/gdb/utils.c:1039 #4 0x000000000065d81b in async_request_quit (arg=0x0) at .../src/gdb/event-top.c:893 #5 0x000000000065c27b in invoke_async_signal_handlers () at .../src/gdb/event-loop.c:949 #6 0x000000000065aeef in gdb_do_one_event () at .../src/gdb/event-loop.c:280 #7 0x0000000000770838 in gdb_readline_wrapper (prompt=0x7fffffffcd40 "---Type <return> to continue, or q <return> to quit---") at .../src/gdb/top.c:873 The need for the QUIT in stdin_event_handler is then exposed by the gdb.base/double-prompt-target-event-error.exp test, which has: # We're now stopped in a pagination query while handling a # target event (printing where the program stopped). Quitting # the pagination should result in only one prompt being # output. send_gdb "\003p 1\n" Without that change we'd get: Continuing. ---Type <return> to continue, or q <return> to quit---PASS: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: continue to pagination ^CpQuit (gdb) 1 Undefined command: "1". Try "help". (gdb) PASS: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: first prompt ERROR: Undefined command "". UNRESOLVED: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: no double prompt Vs: Continuing. ---Type <return> to continue, or q <return> to quit---PASS: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: continue to pagination ^CQuit (gdb) p 1 $1 = 1 (gdb) PASS: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: first prompt PASS: gdb.base/double-prompt-target-event-error.exp: ctrlc target event: continue: no double prompt gdb/ChangeLog: 2016-04-12 Pedro Alves <palves@redhat.com> * event-top.c (stdin_event_handler): Call QUIT; (prompt_for_continue): Don't run with immediate_quit set.
* python: Use console format for output of gdb.execute commandCatalin Udma2016-03-311-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When gdb is started in MI mode, the output of gdb.execute command is in MI-format in case when it is executed from python stop handler while for all other cases the output is in console-format. To assure consistent output format, this is fixed by using the console format for all python gdb command executions. PR python/19743 gdb/ChangeLog: 2016-03-31 Catalin Udma <catalin.udma@freescale.com> PR python/19743 * python/python.c (execute_gdb_command): Use console uiout when executing gdb command. * utils.c (restore_ui_out_closure): New structure. (do_restore_ui_out): New function. (make_cleanup_restore_ui_out): Likewise. * utils.h (make_cleanup_restore_ui_out): Declare. gdb/testsuite/ChangeLog: 2016-03-31 Catalin Udma <catalin.udma@freescale.com> PR python/19743 * gdb.python/py-mi-events-gdb.py: New file. * gdb.python/py-mi-events.c: New file. * gdb.python/py-mi-events.exp: New file. Signed-off-by: Catalin Udma <catalin.udma@freescale.com>
* Update prompt_for_continue commentsPedro Alves2016-03-091-14/+8
| | | | | | | | | | | These comments are out of date -- we no longer call gdb_readline. And I think that mentioning the event loop is more useful here than whatever GO32 issue had with gdb_readline, which may even no longer be an issue. gdb/ChangeLog: 2016-03-09 Pedro Alves <palves@redhat.com> * utils.c (prompt_for_continue): Update comments.
* Extend "skip" command to support -file, -gfile, -function, -rfunction.Doug Evans2016-02-231-0/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gdb/ChangeLog: Extend "skip" command to support -file, -gfile, -function, -rfunction. * NEWS: Document new features. * skip.c: #include "fnmatch.h", "gdb_regex.h". (skiplist_entry) <file>: Renamed from filename. <function>: Renamed from function_name. <file_is_glob, function_is_regexp>: New members. <compiled_function_regexp, compiled_function_regexp_is_valid>: New members. (make_skip_entry): New function. (free_skiplist_entry, free_skiplist_entry_cleanup): New functions. (make_free_skiplist_entry_cleanup): New function. (skip_file_command): Update. (skip_function, skip_function_command): Update. (compile_skip_regexp): New functions. (skip_command): Add support for new options. (skip_info): Update. (skip_file_p, skip_gfile_p): New functions. (skip_function_p, skip_rfunction_p): New functions. (function_name_is_marked_for_skip): Update and simplify. (_initialize_step_skip): Update. * symtab.c: #include "fnmatch.h". (compare_glob_filenames_for_search): New function. * symtab.h (compare_glob_filenames_for_search): Declare. * utils.c (count_path_elements): New function. (strip_leading_path_elements): New function. * utils.h (count_path_elements): Declare. (strip_leading_path_elements): Declare. gdb/doc/ChangeLog: * gdb.texinfo (Skipping Over Functions and Files): Document new options to "skip" command. Update docs of output of "info skip". gdb/testsuite/ChangeLog: * gdb.base/skip.c (test_skip): New function. (end_test_skip_file_and_function): New function. (test_skip_file_and_function): New function. * gdb.base/skip1.c (test_skip): New function. (skip1_test_skip_file_and_function): New function. * gdb.base/skip.exp: Add tests for new skip options. * gdb.base/skip-solib.exp: Update expected output. * gdb.perf/skip-command.cc: New file. * gdb.perf/skip-command.exp: New file. * gdb.perf/skip-command.py: New file.
* GDB copyright headers update after running GDB's copyright.py script.Joel Brobecker2016-01-011-1/+1
| | | | | | gdb/ChangeLog: Update year range in copyright notice of all files.
* Make prompt_for_continue call throw_quit directly.Sandra Loosemore2015-12-181-1/+2
| | | | | | | 2015-12-18 Sandra Loosemore <sandra@codesourcery.com> gdb/ * utils.c (prompt_for_continue): Call throw_quit directly on 'q'.
* [C++/mingw] Misc alloca castsPedro Alves2015-11-171-2/+2
| | | | | | | | | gdb/ChangeLog: 2015-11-17 Pedro Alves <palves@redhat.com> * exec.c (exec_file_attach, symfile_bfd_open) [__GO32__ || _WIN32 || __CYGWIN__]: Add casts. * utils.c (gdb_filename_fnmatch): Add cast. * windows-nat.c (windows_create_inferior): Add cast.
* Disable paging when run by Emacs 25.1 and later.Eli Zaretskii2015-10-291-2/+3
| | | | | | | gdb/ChangeLog: * utils.c (init_page_info): Disable paging if INSIDE_EMACS is set in the environment.
* Make host_address_to_string/gdb_print_host_address cast parameter to 'void *'Pedro Alves2015-10-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Fixes a set of errors like: ../../src/gdb/symfile-debug.c: In function ‘int debug_qf_map_symtabs_matching_filename(objfile*, const char*, const char*, int (*)(symtab*, void*), void*)’: ../../src/gdb/symfile-debug.c:137:39: error: invalid conversion from ‘int (*)(symtab*, void*)’ to ‘const void*’ [-fpermissive] host_address_to_string (callback), ^ Note this has to work with data and function pointers. In C++11 we may perhaps do something a bit safer, but we're not there yet, and I don't think it really matters. For now just always do a simple C-style cast in host_address_to_string itself. No point in adding a void * cast to each and every caller. gdb/ChangeLog: 2015-10-27 Pedro Alves <palves@redhat.com> * common/print-utils.c (host_address_to_string): Rename to ... (host_address_to_string_1): ... this. * common/print-utils.h (host_address_to_string): Reimplement as wrapper around host_address_to_string_1. * utils.c (gdb_print_host_address): Rename to ... (gdb_print_host_address_1): ... this. * utils.h (gdb_print_host_address): Reimplement as wrapper macro around host_address_to_string_1.