X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fmaint.c;h=01d04df75bfd22562ad8a45c433083d3e7336aa2;hb=aed57c537116ae91f553ac835b3f96d1f87b3bb0;hp=358809d5d4085b40408248b84412d70fec9b330d;hpb=618f726fcb851883a0094aa7fa17003889b7189f;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/maint.c b/gdb/maint.c index 358809d5d4..01d04df75b 100644 --- a/gdb/maint.c +++ b/gdb/maint.c @@ -1,6 +1,6 @@ /* Support for GDB maintenance commands. - Copyright (C) 1992-2016 Free Software Foundation, Inc. + Copyright (C) 1992-2019 Free Software Foundation, Inc. Written by Fred Fish at Cygnus Support. @@ -24,8 +24,6 @@ #include "arch-utils.h" #include #include -#include "gdb_sys_time.h" -#include #include "command.h" #include "gdbcmd.h" #include "symtab.h" @@ -39,32 +37,14 @@ #include "objfiles.h" #include "value.h" #include "top.h" -#include "timeval-utils.h" #include "maint.h" +#include "selftest.h" #include "cli/cli-decode.h" #include "cli/cli-utils.h" #include "cli/cli-setshow.h" -extern void _initialize_maint_cmds (void); - -static void maintenance_command (char *, int); - -static void maintenance_internal_error (char *args, int from_tty); - -static void maintenance_demangle (char *, int); - -static void maintenance_time_display (char *, int); - -static void maintenance_space_display (char *, int); - -static void maintenance_info_command (char *, int); - -static void maintenance_info_sections (char *, int); - -static void maintenance_print_command (char *, int); - -static void maintenance_do_deprecate (char *, int); +static void maintenance_do_deprecate (const char *, int); /* Set this to the maximum number of seconds to wait instead of waiting forever in target_wait(). If this timer times out, then it generates an error and @@ -83,7 +63,7 @@ show_watchdog (struct ui_file *file, int from_tty, /* Access the maintenance subcommands. */ static void -maintenance_command (char *args, int from_tty) +maintenance_command (const char *args, int from_tty) { printf_unfiltered (_("\"maintenance\" must be followed by " "the name of a maintenance command.\n")); @@ -92,7 +72,7 @@ maintenance_command (char *args, int from_tty) #ifndef _WIN32 static void -maintenance_dump_me (char *args, int from_tty) +maintenance_dump_me (const char *args, int from_tty) { if (query (_("Should GDB dump core? "))) { @@ -114,7 +94,7 @@ maintenance_dump_me (char *args, int from_tty) GDB. */ static void -maintenance_internal_error (char *args, int from_tty) +maintenance_internal_error (const char *args, int from_tty) { internal_error (__FILE__, __LINE__, "%s", (args == NULL ? "" : args)); } @@ -125,7 +105,7 @@ maintenance_internal_error (char *args, int from_tty) GDB. */ static void -maintenance_internal_warning (char *args, int from_tty) +maintenance_internal_warning (const char *args, int from_tty) { internal_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args)); } @@ -134,7 +114,7 @@ maintenance_internal_warning (char *args, int from_tty) demangler problem is detected. Allows testing of the mechanism. */ static void -maintenance_demangler_warning (char *args, int from_tty) +maintenance_demangler_warning (const char *args, int from_tty) { demangler_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args)); } @@ -144,13 +124,13 @@ maintenance_demangler_warning (char *args, int from_tty) "mt demangler-warning" which artificially creates an internal gdb error. */ static void -maintenance_demangle (char *args, int from_tty) +maintenance_demangle (const char *args, int from_tty) { printf_filtered (_("This command has been moved to \"demangle\".\n")); } static void -maintenance_time_display (char *args, int from_tty) +maintenance_time_display (const char *args, int from_tty) { if (args == NULL || *args == '\0') printf_unfiltered (_("\"maintenance time\" takes a numeric argument.\n")); @@ -159,7 +139,7 @@ maintenance_time_display (char *args, int from_tty) } static void -maintenance_space_display (char *args, int from_tty) +maintenance_space_display (const char *args, int from_tty) { if (args == NULL || *args == '\0') printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); @@ -172,7 +152,7 @@ maintenance_space_display (char *args, int from_tty) "maintenance info" with no args. */ static void -maintenance_info_command (char *arg, int from_tty) +maintenance_info_command (const char *arg, int from_tty) { printf_unfiltered (_("\"maintenance info\" must be followed " "by the name of an info command.\n")); @@ -180,6 +160,19 @@ maintenance_info_command (char *arg, int from_tty) gdb_stdout); } +/* The "maintenance check" command is defined as a prefix, with + allow_unknown 0. Therefore, its own definition is called only for + "maintenance check" with no args. */ + +static void +maintenance_check_command (const char *arg, int from_tty) +{ + printf_unfiltered (_("\"maintenance check\" must be followed " + "by the name of a check command.\n")); + help_list (maintenancechecklist, "maintenance check ", all_commands, + gdb_stdout); +} + /* Mini tokenizing lexer for 'maint info sections' command. */ static int @@ -345,7 +338,7 @@ print_objfile_section_info (bfd *abfd, } static void -maintenance_info_sections (char *arg, int from_tty) +maintenance_info_sections (const char *arg, int from_tty) { if (exec_bfd) { @@ -355,7 +348,6 @@ maintenance_info_sections (char *arg, int from_tty) printf_filtered (_("file type %s.\n"), bfd_get_target (exec_bfd)); if (arg && *arg && match_substring (arg, "ALLOBJ")) { - struct objfile *ofile; struct obj_section *osect; /* Only this function cares about the 'ALLOBJ' argument; @@ -365,7 +357,7 @@ maintenance_info_sections (char *arg, int from_tty) if (strcmp (arg, "ALLOBJ") == 0) arg = NULL; - ALL_OBJFILES (ofile) + for (objfile *ofile : all_objfiles (current_program_space)) { printf_filtered (_(" Object file: %s\n"), bfd_get_filename (ofile->obfd)); @@ -376,7 +368,7 @@ maintenance_info_sections (char *arg, int from_tty) } } else - bfd_map_over_sections (exec_bfd, print_bfd_section_info, arg); + bfd_map_over_sections (exec_bfd, print_bfd_section_info, (void *) arg); } if (core_bfd) @@ -385,19 +377,19 @@ maintenance_info_sections (char *arg, int from_tty) printf_filtered (" `%s', ", bfd_get_filename (core_bfd)); wrap_here (" "); printf_filtered (_("file type %s.\n"), bfd_get_target (core_bfd)); - bfd_map_over_sections (core_bfd, print_bfd_section_info, arg); + bfd_map_over_sections (core_bfd, print_bfd_section_info, (void *) arg); } } static void -maintenance_print_statistics (char *args, int from_tty) +maintenance_print_statistics (const char *args, int from_tty) { print_objfile_statistics (); print_symbol_bcache_statistics (); } static void -maintenance_print_architecture (char *args, int from_tty) +maintenance_print_architecture (const char *args, int from_tty) { struct gdbarch *gdbarch = get_current_arch (); @@ -405,14 +397,11 @@ maintenance_print_architecture (char *args, int from_tty) gdbarch_dump (gdbarch, gdb_stdout); else { - struct cleanup *cleanups; - struct ui_file *file = gdb_fopen (args, "w"); + stdio_file file; - if (file == NULL) + if (!file.open (args, "w")) perror_with_name (_("maintenance print architecture")); - cleanups = make_cleanup_ui_file_delete (file); - gdbarch_dump (gdbarch, file); - do_cleanups (cleanups); + gdbarch_dump (gdbarch, &file); } } @@ -421,7 +410,7 @@ maintenance_print_architecture (char *args, int from_tty) "maintenance print" with no args. */ static void -maintenance_print_command (char *arg, int from_tty) +maintenance_print_command (const char *arg, int from_tty) { printf_unfiltered (_("\"maintenance print\" must be followed " "by the name of a print command.\n")); @@ -435,11 +424,11 @@ maintenance_print_command (char *arg, int from_tty) or maintenance translate-address . */ static void -maintenance_translate_address (char *arg, int from_tty) +maintenance_translate_address (const char *arg, int from_tty) { CORE_ADDR address; struct obj_section *sect; - char *p; + const char *p; struct bound_minimal_symbol sym; struct objfile *objfile; @@ -454,13 +443,14 @@ maintenance_translate_address (char *arg, int from_tty) while (*p && !isspace (*p)) /* Find end of section name. */ p++; if (*p == '\000') /* End of command? */ - error (_("Need to specify and
")); - *p++ = '\000'; - p = skip_spaces (p); + error (_("Need to specify section name and address")); + + int arg_len = p - arg; + p = skip_spaces (p + 1); ALL_OBJSECTIONS (objfile, sect) { - if (strcmp (sect->the_bfd_section->name, arg) == 0) + if (strncmp (sect->the_bfd_section->name, arg, arg_len) == 0) break; } @@ -519,7 +509,7 @@ maintenance_translate_address (char *arg, int from_tty) offered. */ static void -maintenance_deprecate (char *args, int from_tty) +maintenance_deprecate (const char *args, int from_tty) { if (args == NULL || *args == '\0') { @@ -529,12 +519,11 @@ enclosed in quotes.\n")); } maintenance_do_deprecate (args, 1); - } static void -maintenance_undeprecate (char *args, int from_tty) +maintenance_undeprecate (const char *args, int from_tty) { if (args == NULL || *args == '\0') { @@ -543,7 +532,6 @@ the command you want to undeprecate.\n")); } maintenance_do_deprecate (args, 0); - } /* You really shouldn't be using this. It is just for the testsuite. @@ -554,14 +542,14 @@ the command you want to undeprecate.\n")); replacement. */ static void -maintenance_do_deprecate (char *text, int deprecate) +maintenance_do_deprecate (const char *text, int deprecate) { struct cmd_list_element *alias = NULL; struct cmd_list_element *prefix_cmd = NULL; struct cmd_list_element *cmd = NULL; - char *start_ptr = NULL; - char *end_ptr = NULL; + const char *start_ptr = NULL; + const char *end_ptr = NULL; int len; char *replacement = NULL; @@ -585,8 +573,7 @@ maintenance_do_deprecate (char *text, int deprecate) if (end_ptr != NULL) { len = end_ptr - start_ptr; - start_ptr[len] = '\0'; - replacement = xstrdup (start_ptr); + replacement = savestring (start_ptr, len); } } } @@ -647,7 +634,7 @@ struct cmd_list_element *maintenance_set_cmdlist; struct cmd_list_element *maintenance_show_cmdlist; static void -maintenance_set_cmd (char *args, int from_tty) +maintenance_set_cmd (const char *args, int from_tty) { printf_unfiltered (_("\"maintenance set\" must be followed " "by the name of a set command.\n")); @@ -656,7 +643,7 @@ maintenance_set_cmd (char *args, int from_tty) } static void -maintenance_show_cmd (char *args, int from_tty) +maintenance_show_cmd (const char *args, int from_tty) { cmd_show_list (maintenance_show_cmdlist, from_tty, ""); } @@ -696,7 +683,7 @@ EXTERN_C void monstartup (unsigned long, unsigned long); extern int main (); static void -maintenance_set_profile_cmd (char *args, int from_tty, +maintenance_set_profile_cmd (const char *args, int from_tty, struct cmd_list_element *c) { if (maintenance_profile_p == profiling_state) @@ -727,7 +714,7 @@ maintenance_set_profile_cmd (char *args, int from_tty, } #else static void -maintenance_set_profile_cmd (char *args, int from_tty, +maintenance_set_profile_cmd (const char *args, int from_tty, struct cmd_list_element *c) { error (_("Profiling support is not available on this system.")); @@ -751,31 +738,6 @@ static int per_command_symtab; static struct cmd_list_element *per_command_setlist; static struct cmd_list_element *per_command_showlist; -/* Records a run time and space usage to be used as a base for - reporting elapsed time or change in space. */ - -struct cmd_stats -{ - /* Zero if the saved time is from the beginning of GDB execution. - One if from the beginning of an individual command execution. */ - int msg_type; - /* Track whether the stat was enabled at the start of the command - so that we can avoid printing anything if it gets turned on by - the current command. */ - int time_enabled : 1; - int space_enabled : 1; - int symtab_enabled : 1; - long start_cpu_time; - struct timeval start_wall_time; - long start_space; - /* Total number of symtabs (over all objfiles). */ - int start_nr_symtabs; - /* A count of the compunits. */ - int start_nr_compunit_symtabs; - /* Total number of blocks. */ - int start_nr_blocks; -}; - /* Set whether to display time statistics to NEW_VALUE (non-zero means true). */ @@ -826,47 +788,52 @@ count_symtabs_and_blocks (int *nr_symtabs_ptr, int *nr_compunit_symtabs_ptr, *nr_blocks_ptr = nr_blocks; } -/* As indicated by display_time and display_space, report GDB's elapsed time - and space usage from the base time and space provided in ARG, which - must be a pointer to a struct cmd_stat. This function is intended - to be called as a cleanup. */ +/* As indicated by display_time and display_space, report GDB's + elapsed time and space usage from the base time and space recorded + in this object. */ -static void -report_command_stats (void *arg) +scoped_command_stats::~scoped_command_stats () { - struct cmd_stats *start_stats = (struct cmd_stats *) arg; - int msg_type = start_stats->msg_type; + /* Early exit if we're not reporting any stats. It can be expensive to + compute the pre-command values so don't collect them at all if we're + not reporting stats. Alas this doesn't work in the startup case because + we don't know yet whether we will be reporting the stats. For the + startup case collect the data anyway (it should be cheap at this point), + and leave it to the reporter to decide whether to print them. */ + if (m_msg_type + && !per_command_time + && !per_command_space + && !per_command_symtab) + return; - if (start_stats->time_enabled && per_command_time) + if (m_time_enabled && per_command_time) { - long cmd_time = get_run_time () - start_stats->start_cpu_time; - struct timeval now_wall_time, delta_wall_time, wait_time; + using namespace std::chrono; - gettimeofday (&now_wall_time, NULL); - timeval_sub (&delta_wall_time, - &now_wall_time, &start_stats->start_wall_time); + run_time_clock::duration cmd_time + = run_time_clock::now () - m_start_cpu_time; + steady_clock::duration wall_time + = steady_clock::now () - m_start_wall_time; /* Subtract time spend in prompt_for_continue from walltime. */ - wait_time = get_prompt_for_continue_wait_time (); - timeval_sub (&delta_wall_time, &delta_wall_time, &wait_time); - - printf_unfiltered (msg_type == 0 - ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n") - : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"), - cmd_time / 1000000, cmd_time % 1000000, - (long) delta_wall_time.tv_sec, - (long) delta_wall_time.tv_usec); + wall_time -= get_prompt_for_continue_wait_time (); + + printf_unfiltered (!m_msg_type + ? _("Startup time: %.6f (cpu), %.6f (wall)\n") + : _("Command execution time: %.6f (cpu), %.6f (wall)\n"), + duration (cmd_time).count (), + duration (wall_time).count ()); } - if (start_stats->space_enabled && per_command_space) + if (m_space_enabled && per_command_space) { -#ifdef HAVE_SBRK +#ifdef HAVE_USEFUL_SBRK char *lim = (char *) sbrk (0); long space_now = lim - lim_at_start; - long space_diff = space_now - start_stats->start_space; + long space_diff = space_now - m_start_space; - printf_unfiltered (msg_type == 0 + printf_unfiltered (!m_msg_type ? _("Space used: %ld (%s%ld during startup)\n") : _("Space used: %ld (%s%ld for this command)\n"), space_now, @@ -875,7 +842,7 @@ report_command_stats (void *arg) #endif } - if (start_stats->symtab_enabled && per_command_symtab) + if (m_symtab_enabled && per_command_symtab) { int nr_symtabs, nr_compunit_symtabs, nr_blocks; @@ -884,81 +851,64 @@ report_command_stats (void *arg) " #compunits: %d (+%d)," " #blocks: %d (+%d)\n"), nr_symtabs, - nr_symtabs - start_stats->start_nr_symtabs, + nr_symtabs - m_start_nr_symtabs, nr_compunit_symtabs, (nr_compunit_symtabs - - start_stats->start_nr_compunit_symtabs), + - m_start_nr_compunit_symtabs), nr_blocks, - nr_blocks - start_stats->start_nr_blocks); + nr_blocks - m_start_nr_blocks); } } -/* Create a cleanup that reports time and space used since its creation. - MSG_TYPE is zero for gdb startup, otherwise it is one(1) to report - data for individual commands. */ - -struct cleanup * -make_command_stats_cleanup (int msg_type) +scoped_command_stats::scoped_command_stats (bool msg_type) +: m_msg_type (msg_type) { - struct cmd_stats *new_stat; - - /* Early exit if we're not reporting any stats. It can be expensive to - compute the pre-command values so don't collect them at all if we're - not reporting stats. Alas this doesn't work in the startup case because - we don't know yet whether we will be reporting the stats. For the - startup case collect the data anyway (it should be cheap at this point), - and leave it to the reporter to decide whether to print them. */ - if (msg_type != 0 - && !per_command_time - && !per_command_space - && !per_command_symtab) - return make_cleanup (null_cleanup, 0); - - new_stat = XCNEW (struct cmd_stats); - - new_stat->msg_type = msg_type; - - if (msg_type == 0 || per_command_space) + if (!m_msg_type || per_command_space) { -#ifdef HAVE_SBRK +#ifdef HAVE_USEFUL_SBRK char *lim = (char *) sbrk (0); - new_stat->start_space = lim - lim_at_start; - new_stat->space_enabled = 1; + m_start_space = lim - lim_at_start; + m_space_enabled = 1; #endif } + else + m_space_enabled = 0; if (msg_type == 0 || per_command_time) { - new_stat->start_cpu_time = get_run_time (); - gettimeofday (&new_stat->start_wall_time, NULL); - new_stat->time_enabled = 1; + using namespace std::chrono; + + m_start_cpu_time = run_time_clock::now (); + m_start_wall_time = steady_clock::now (); + m_time_enabled = 1; } + else + m_time_enabled = 0; if (msg_type == 0 || per_command_symtab) { int nr_symtabs, nr_compunit_symtabs, nr_blocks; count_symtabs_and_blocks (&nr_symtabs, &nr_compunit_symtabs, &nr_blocks); - new_stat->start_nr_symtabs = nr_symtabs; - new_stat->start_nr_compunit_symtabs = nr_compunit_symtabs; - new_stat->start_nr_blocks = nr_blocks; - new_stat->symtab_enabled = 1; + m_start_nr_symtabs = nr_symtabs; + m_start_nr_compunit_symtabs = nr_compunit_symtabs; + m_start_nr_blocks = nr_blocks; + m_symtab_enabled = 1; } + else + m_symtab_enabled = 0; - /* Initalize timer to keep track of how long we waited for the user. */ + /* Initialize timer to keep track of how long we waited for the user. */ reset_prompt_for_continue_wait_time (); - - return make_cleanup_dtor (report_command_stats, new_stat, xfree); } /* Handle unknown "mt set per-command" arguments. In this case have "mt set per-command on|off" affect every setting. */ static void -set_per_command_cmd (char *args, int from_tty) +set_per_command_cmd (const char *args, int from_tty) { struct cmd_list_element *list; - size_t length; int val; val = parse_cli_boolean_value (args); @@ -977,10 +927,39 @@ set_per_command_cmd (char *args, int from_tty) "show per-command " settings. */ static void -show_per_command_cmd (char *args, int from_tty) +show_per_command_cmd (const char *args, int from_tty) { cmd_show_list (per_command_showlist, from_tty, ""); } + + +/* The "maintenance selftest" command. */ + +static void +maintenance_selftest (const char *args, int from_tty) +{ +#if GDB_SELF_TEST + selftests::run_tests (args); +#else + printf_filtered (_("\ +Selftests have been disabled for this build.\n")); +#endif +} + +static void +maintenance_info_selftests (const char *arg, int from_tty) +{ +#if GDB_SELF_TEST + printf_filtered ("Registered selftests:\n"); + selftests::for_each_selftest ([] (const std::string &name) { + printf_filtered (" - %s\n", name.c_str ()); + }); +#else + printf_filtered (_("\ +Selftests have been disabled for this build.\n")); +#endif +} + void _initialize_maint_cmds (void) @@ -1066,12 +1045,12 @@ This command has been moved to \"demangle\"."), add_prefix_cmd ("per-command", class_maintenance, set_per_command_cmd, _("\ Per-command statistics settings."), - &per_command_setlist, "set per-command ", + &per_command_setlist, "maintenance set per-command ", 1/*allow-unknown*/, &maintenance_set_cmdlist); add_prefix_cmd ("per-command", class_maintenance, show_per_command_cmd, _("\ Show per-command statistics settings."), - &per_command_showlist, "show per-command ", + &per_command_showlist, "maintenance show per-command ", 0/*allow-unknown*/, &maintenance_show_cmdlist); add_setshow_boolean_cmd ("time", class_maintenance, @@ -1136,6 +1115,11 @@ Print the internal architecture configuration.\n\ Takes an optional file parameter."), &maintenanceprintlist); + add_prefix_cmd ("check", class_maintenance, maintenance_check_command, _("\ +Commands for checking internal gdb state."), + &maintenancechecklist, "maintenance check ", 0, + &maintenancelist); + add_cmd ("translate-address", class_maintenance, maintenance_translate_address, _("Translate a section name and address to a symbol."), @@ -1154,6 +1138,16 @@ testsuite can check the command deprecator. You probably shouldn't use this,\n\ If you decide you want to use it: maintenance undeprecate 'commandname'"), &maintenancelist); + add_cmd ("selftest", class_maintenance, maintenance_selftest, _("\ +Run gdb's unit tests.\n\ +Usage: maintenance selftest [filter]\n\ +This will run any unit tests that were built in to gdb.\n\ +If a filter is given, only the tests with that value in their name will ran."), + &maintenancelist); + + add_cmd ("selftests", class_maintenance, maintenance_info_selftests, + _("List the registered selftests."), &maintenanceinfolist); + add_setshow_zinteger_cmd ("watchdog", class_maintenance, &watchdog, _("\ Set watchdog timer."), _("\ Show watchdog timer."), _("\