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56000a9801
These symbols are defined in C code, so in C++ mode we need to use extern "C" to declare them. As extern "C" can't be used inside a function's scope, we move the declarations to the global scope at the same time. gdb/ChangeLog: 2015-02-27 Pedro Alves <palves@redhat.com> * cli-out.c (_rl_erase_entire_line): Move declaration out of cli_mld_erase_entire_line, and make it extern "C". * common/common-defs.h (EXTERN_C): New. * completer.c (_rl_completion_prefix_display_length) (_rl_print_completions_horizontally, QSFUNC): Move declarations out of gdb_display_match_list_1. (_rl_qsort_string_compare): Move declaration out of gdb_display_match_list_1, and make it extern "C". * defs.h (re_comp): Use EXTERN_C. * maint.c (_mcleanup): Move declaration out of mcleanup_wrapper, and make it extern "C". (monstartup): Move declaration out of maintenance_set_profile_cmd, and make it extern "C". (main): Move declaration out of maintenance_set_profile_cmd. * nat/linux-ptrace.c (linux_ptrace_attach_fail_reason_string): Use EXTERN_C.
1177 lines
34 KiB
C
1177 lines
34 KiB
C
/* Support for GDB maintenance commands.
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Copyright (C) 1992-2015 Free Software Foundation, Inc.
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Written by Fred Fish at Cygnus Support.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "arch-utils.h"
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#include <ctype.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <time.h>
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#include "command.h"
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#include "gdbcmd.h"
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#include "symtab.h"
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#include "block.h"
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#include "gdbtypes.h"
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#include "demangle.h"
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#include "gdbcore.h"
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#include "expression.h" /* For language.h */
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#include "language.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "value.h"
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#include "top.h"
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#include "timeval-utils.h"
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#include "maint.h"
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#include "cli/cli-decode.h"
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#include "cli/cli-utils.h"
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#include "cli/cli-setshow.h"
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extern void _initialize_maint_cmds (void);
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static void maintenance_command (char *, int);
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static void maintenance_internal_error (char *args, int from_tty);
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static void maintenance_demangle (char *, int);
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static void maintenance_time_display (char *, int);
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static void maintenance_space_display (char *, int);
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static void maintenance_info_command (char *, int);
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static void maintenance_info_sections (char *, int);
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static void maintenance_print_command (char *, int);
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static void maintenance_do_deprecate (char *, int);
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/* Set this to the maximum number of seconds to wait instead of waiting forever
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in target_wait(). If this timer times out, then it generates an error and
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the command is aborted. This replaces most of the need for timeouts in the
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GDB test suite, and makes it possible to distinguish between a hung target
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and one with slow communications. */
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int watchdog = 0;
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static void
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show_watchdog (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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fprintf_filtered (file, _("Watchdog timer is %s.\n"), value);
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}
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/* Access the maintenance subcommands. */
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static void
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maintenance_command (char *args, int from_tty)
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{
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printf_unfiltered (_("\"maintenance\" must be followed by "
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"the name of a maintenance command.\n"));
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help_list (maintenancelist, "maintenance ", all_commands, gdb_stdout);
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}
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#ifndef _WIN32
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static void
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maintenance_dump_me (char *args, int from_tty)
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{
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if (query (_("Should GDB dump core? ")))
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{
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#ifdef __DJGPP__
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/* SIGQUIT by default is ignored, so use SIGABRT instead. */
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signal (SIGABRT, SIG_DFL);
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kill (getpid (), SIGABRT);
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#else
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signal (SIGQUIT, SIG_DFL);
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kill (getpid (), SIGQUIT);
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#endif
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}
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}
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#endif
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/* Stimulate the internal error mechanism that GDB uses when an
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internal problem is detected. Allows testing of the mechanism.
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Also useful when the user wants to drop a core file but not exit
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GDB. */
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static void
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maintenance_internal_error (char *args, int from_tty)
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{
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internal_error (__FILE__, __LINE__, "%s", (args == NULL ? "" : args));
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}
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/* Stimulate the internal error mechanism that GDB uses when an
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internal problem is detected. Allows testing of the mechanism.
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Also useful when the user wants to drop a core file but not exit
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GDB. */
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static void
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maintenance_internal_warning (char *args, int from_tty)
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{
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internal_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args));
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}
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/* Stimulate the internal error mechanism that GDB uses when an
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demangler problem is detected. Allows testing of the mechanism. */
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static void
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maintenance_demangler_warning (char *args, int from_tty)
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{
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demangler_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args));
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}
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/* Old command to demangle a string. The command has been moved to "demangle".
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It is kept for now because otherwise "mt demangle" gets interpreted as
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"mt demangler-warning" which artificially creates an internal gdb error. */
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static void
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maintenance_demangle (char *args, int from_tty)
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{
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printf_filtered (_("This command has been moved to \"demangle\".\n"));
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}
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static void
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maintenance_time_display (char *args, int from_tty)
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{
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if (args == NULL || *args == '\0')
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printf_unfiltered (_("\"maintenance time\" takes a numeric argument.\n"));
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else
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set_per_command_time (strtol (args, NULL, 10));
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}
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static void
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maintenance_space_display (char *args, int from_tty)
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{
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if (args == NULL || *args == '\0')
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printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n");
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else
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set_per_command_space (strtol (args, NULL, 10));
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}
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/* The "maintenance info" command is defined as a prefix, with
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allow_unknown 0. Therefore, its own definition is called only for
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"maintenance info" with no args. */
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static void
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maintenance_info_command (char *arg, int from_tty)
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{
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printf_unfiltered (_("\"maintenance info\" must be followed "
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"by the name of an info command.\n"));
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help_list (maintenanceinfolist, "maintenance info ", all_commands,
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gdb_stdout);
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}
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/* Mini tokenizing lexer for 'maint info sections' command. */
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static int
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match_substring (const char *string, const char *substr)
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{
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int substr_len = strlen(substr);
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const char *tok;
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while ((tok = strstr (string, substr)) != NULL)
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{
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/* Got a partial match. Is it a whole word? */
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if (tok == string
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|| tok[-1] == ' '
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|| tok[-1] == '\t')
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{
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/* Token is delimited at the front... */
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if (tok[substr_len] == ' '
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|| tok[substr_len] == '\t'
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|| tok[substr_len] == '\0')
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{
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/* Token is delimited at the rear. Got a whole-word match. */
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return 1;
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}
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}
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/* Token didn't match as a whole word. Advance and try again. */
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string = tok + 1;
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}
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return 0;
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}
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static int
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match_bfd_flags (const char *string, flagword flags)
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{
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if (flags & SEC_ALLOC)
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if (match_substring (string, "ALLOC"))
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return 1;
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if (flags & SEC_LOAD)
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if (match_substring (string, "LOAD"))
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return 1;
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if (flags & SEC_RELOC)
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if (match_substring (string, "RELOC"))
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return 1;
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if (flags & SEC_READONLY)
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if (match_substring (string, "READONLY"))
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return 1;
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if (flags & SEC_CODE)
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if (match_substring (string, "CODE"))
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return 1;
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if (flags & SEC_DATA)
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if (match_substring (string, "DATA"))
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return 1;
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if (flags & SEC_ROM)
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if (match_substring (string, "ROM"))
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return 1;
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if (flags & SEC_CONSTRUCTOR)
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if (match_substring (string, "CONSTRUCTOR"))
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return 1;
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if (flags & SEC_HAS_CONTENTS)
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if (match_substring (string, "HAS_CONTENTS"))
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return 1;
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if (flags & SEC_NEVER_LOAD)
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if (match_substring (string, "NEVER_LOAD"))
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return 1;
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if (flags & SEC_COFF_SHARED_LIBRARY)
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if (match_substring (string, "COFF_SHARED_LIBRARY"))
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return 1;
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if (flags & SEC_IS_COMMON)
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if (match_substring (string, "IS_COMMON"))
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return 1;
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return 0;
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}
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static void
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print_bfd_flags (flagword flags)
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{
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if (flags & SEC_ALLOC)
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printf_filtered (" ALLOC");
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if (flags & SEC_LOAD)
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printf_filtered (" LOAD");
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if (flags & SEC_RELOC)
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printf_filtered (" RELOC");
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if (flags & SEC_READONLY)
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printf_filtered (" READONLY");
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if (flags & SEC_CODE)
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printf_filtered (" CODE");
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if (flags & SEC_DATA)
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printf_filtered (" DATA");
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if (flags & SEC_ROM)
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printf_filtered (" ROM");
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if (flags & SEC_CONSTRUCTOR)
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printf_filtered (" CONSTRUCTOR");
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if (flags & SEC_HAS_CONTENTS)
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printf_filtered (" HAS_CONTENTS");
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if (flags & SEC_NEVER_LOAD)
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printf_filtered (" NEVER_LOAD");
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if (flags & SEC_COFF_SHARED_LIBRARY)
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printf_filtered (" COFF_SHARED_LIBRARY");
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if (flags & SEC_IS_COMMON)
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printf_filtered (" IS_COMMON");
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}
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static void
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maint_print_section_info (const char *name, flagword flags,
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CORE_ADDR addr, CORE_ADDR endaddr,
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unsigned long filepos, int addr_size)
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{
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printf_filtered (" %s", hex_string_custom (addr, addr_size));
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printf_filtered ("->%s", hex_string_custom (endaddr, addr_size));
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printf_filtered (" at %s",
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hex_string_custom ((unsigned long) filepos, 8));
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printf_filtered (": %s", name);
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print_bfd_flags (flags);
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printf_filtered ("\n");
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}
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static void
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print_bfd_section_info (bfd *abfd,
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asection *asect,
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void *datum)
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{
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flagword flags = bfd_get_section_flags (abfd, asect);
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const char *name = bfd_section_name (abfd, asect);
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const char *arg = datum;
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if (arg == NULL || *arg == '\0'
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|| match_substring (arg, name)
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|| match_bfd_flags (arg, flags))
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{
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struct gdbarch *gdbarch = gdbarch_from_bfd (abfd);
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int addr_size = gdbarch_addr_bit (gdbarch) / 8;
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CORE_ADDR addr, endaddr;
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addr = bfd_section_vma (abfd, asect);
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endaddr = addr + bfd_section_size (abfd, asect);
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printf_filtered (" [%d] ", gdb_bfd_section_index (abfd, asect));
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maint_print_section_info (name, flags, addr, endaddr,
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asect->filepos, addr_size);
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}
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}
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static void
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print_objfile_section_info (bfd *abfd,
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struct obj_section *asect,
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const char *string)
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{
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flagword flags = bfd_get_section_flags (abfd, asect->the_bfd_section);
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const char *name = bfd_section_name (abfd, asect->the_bfd_section);
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if (string == NULL || *string == '\0'
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|| match_substring (string, name)
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|| match_bfd_flags (string, flags))
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{
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struct gdbarch *gdbarch = gdbarch_from_bfd (abfd);
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int addr_size = gdbarch_addr_bit (gdbarch) / 8;
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maint_print_section_info (name, flags,
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obj_section_addr (asect),
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obj_section_endaddr (asect),
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asect->the_bfd_section->filepos,
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addr_size);
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}
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}
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static void
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maintenance_info_sections (char *arg, int from_tty)
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{
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if (exec_bfd)
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{
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printf_filtered (_("Exec file:\n"));
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printf_filtered (" `%s', ", bfd_get_filename (exec_bfd));
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wrap_here (" ");
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printf_filtered (_("file type %s.\n"), bfd_get_target (exec_bfd));
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if (arg && *arg && match_substring (arg, "ALLOBJ"))
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{
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struct objfile *ofile;
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struct obj_section *osect;
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/* Only this function cares about the 'ALLOBJ' argument;
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if 'ALLOBJ' is the only argument, discard it rather than
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passing it down to print_objfile_section_info (which
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wouldn't know how to handle it). */
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if (strcmp (arg, "ALLOBJ") == 0)
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arg = NULL;
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ALL_OBJFILES (ofile)
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{
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printf_filtered (_(" Object file: %s\n"),
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bfd_get_filename (ofile->obfd));
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ALL_OBJFILE_OSECTIONS (ofile, osect)
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{
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print_objfile_section_info (ofile->obfd, osect, arg);
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}
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}
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}
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else
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bfd_map_over_sections (exec_bfd, print_bfd_section_info, arg);
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}
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if (core_bfd)
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{
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printf_filtered (_("Core file:\n"));
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printf_filtered (" `%s', ", bfd_get_filename (core_bfd));
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wrap_here (" ");
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printf_filtered (_("file type %s.\n"), bfd_get_target (core_bfd));
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bfd_map_over_sections (core_bfd, print_bfd_section_info, arg);
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}
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}
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static void
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maintenance_print_statistics (char *args, int from_tty)
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{
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print_objfile_statistics ();
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print_symbol_bcache_statistics ();
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}
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static void
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maintenance_print_architecture (char *args, int from_tty)
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{
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struct gdbarch *gdbarch = get_current_arch ();
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if (args == NULL)
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gdbarch_dump (gdbarch, gdb_stdout);
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else
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{
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struct cleanup *cleanups;
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struct ui_file *file = gdb_fopen (args, "w");
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if (file == NULL)
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perror_with_name (_("maintenance print architecture"));
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cleanups = make_cleanup_ui_file_delete (file);
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gdbarch_dump (gdbarch, file);
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do_cleanups (cleanups);
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}
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}
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/* The "maintenance print" command is defined as a prefix, with
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allow_unknown 0. Therefore, its own definition is called only for
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"maintenance print" with no args. */
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static void
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maintenance_print_command (char *arg, int from_tty)
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{
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printf_unfiltered (_("\"maintenance print\" must be followed "
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"by the name of a print command.\n"));
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help_list (maintenanceprintlist, "maintenance print ", all_commands,
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gdb_stdout);
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}
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/* The "maintenance translate-address" command converts a section and address
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to a symbol. This can be called in two ways:
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maintenance translate-address <secname> <addr>
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or maintenance translate-address <addr>. */
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static void
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maintenance_translate_address (char *arg, int from_tty)
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{
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CORE_ADDR address;
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struct obj_section *sect;
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char *p;
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struct bound_minimal_symbol sym;
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struct objfile *objfile;
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if (arg == NULL || *arg == 0)
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error (_("requires argument (address or section + address)"));
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sect = NULL;
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p = arg;
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if (!isdigit (*p))
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{ /* See if we have a valid section name. */
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while (*p && !isspace (*p)) /* Find end of section name. */
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p++;
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if (*p == '\000') /* End of command? */
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error (_("Need to specify <section-name> and <address>"));
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*p++ = '\000';
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p = skip_spaces (p);
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ALL_OBJSECTIONS (objfile, sect)
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{
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if (strcmp (sect->the_bfd_section->name, arg) == 0)
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break;
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}
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if (!objfile)
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error (_("Unknown section %s."), arg);
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}
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address = parse_and_eval_address (p);
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if (sect)
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sym = lookup_minimal_symbol_by_pc_section (address, sect);
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else
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sym = lookup_minimal_symbol_by_pc (address);
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if (sym.minsym)
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{
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const char *symbol_name = MSYMBOL_PRINT_NAME (sym.minsym);
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const char *symbol_offset
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= pulongest (address - BMSYMBOL_VALUE_ADDRESS (sym));
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sect = MSYMBOL_OBJ_SECTION(sym.objfile, sym.minsym);
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if (sect != NULL)
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{
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const char *section_name;
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const char *obj_name;
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gdb_assert (sect->the_bfd_section && sect->the_bfd_section->name);
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section_name = sect->the_bfd_section->name;
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gdb_assert (sect->objfile && objfile_name (sect->objfile));
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obj_name = objfile_name (sect->objfile);
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if (MULTI_OBJFILE_P ())
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printf_filtered (_("%s + %s in section %s of %s\n"),
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symbol_name, symbol_offset,
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section_name, obj_name);
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else
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printf_filtered (_("%s + %s in section %s\n"),
|
||
symbol_name, symbol_offset, section_name);
|
||
}
|
||
else
|
||
printf_filtered (_("%s + %s\n"), symbol_name, symbol_offset);
|
||
}
|
||
else if (sect)
|
||
printf_filtered (_("no symbol at %s:%s\n"),
|
||
sect->the_bfd_section->name, hex_string (address));
|
||
else
|
||
printf_filtered (_("no symbol at %s\n"), hex_string (address));
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* When a command is deprecated the user will be warned the first time
|
||
the command is used. If possible, a replacement will be
|
||
offered. */
|
||
|
||
static void
|
||
maintenance_deprecate (char *args, int from_tty)
|
||
{
|
||
if (args == NULL || *args == '\0')
|
||
{
|
||
printf_unfiltered (_("\"maintenance deprecate\" takes an argument,\n\
|
||
the command you want to deprecate, and optionally the replacement command\n\
|
||
enclosed in quotes.\n"));
|
||
}
|
||
|
||
maintenance_do_deprecate (args, 1);
|
||
|
||
}
|
||
|
||
|
||
static void
|
||
maintenance_undeprecate (char *args, int from_tty)
|
||
{
|
||
if (args == NULL || *args == '\0')
|
||
{
|
||
printf_unfiltered (_("\"maintenance undeprecate\" takes an argument, \n\
|
||
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.
|
||
Rather, you should use deprecate_cmd() when the command is created
|
||
in _initialize_blah().
|
||
|
||
This function deprecates a command and optionally assigns it a
|
||
replacement. */
|
||
|
||
static void
|
||
maintenance_do_deprecate (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;
|
||
int len;
|
||
char *replacement = NULL;
|
||
|
||
if (text == NULL)
|
||
return;
|
||
|
||
if (!lookup_cmd_composition (text, &alias, &prefix_cmd, &cmd))
|
||
{
|
||
printf_filtered (_("Can't find command '%s' to deprecate.\n"), text);
|
||
return;
|
||
}
|
||
|
||
if (deprecate)
|
||
{
|
||
/* Look for a replacement command. */
|
||
start_ptr = strchr (text, '\"');
|
||
if (start_ptr != NULL)
|
||
{
|
||
start_ptr++;
|
||
end_ptr = strrchr (start_ptr, '\"');
|
||
if (end_ptr != NULL)
|
||
{
|
||
len = end_ptr - start_ptr;
|
||
start_ptr[len] = '\0';
|
||
replacement = xstrdup (start_ptr);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!start_ptr || !end_ptr)
|
||
replacement = NULL;
|
||
|
||
|
||
/* If they used an alias, we only want to deprecate the alias.
|
||
|
||
Note the MALLOCED_REPLACEMENT test. If the command's replacement
|
||
string was allocated at compile time we don't want to free the
|
||
memory. */
|
||
if (alias)
|
||
{
|
||
if (alias->malloced_replacement)
|
||
xfree ((char *) alias->replacement);
|
||
|
||
if (deprecate)
|
||
{
|
||
alias->deprecated_warn_user = 1;
|
||
alias->cmd_deprecated = 1;
|
||
}
|
||
else
|
||
{
|
||
alias->deprecated_warn_user = 0;
|
||
alias->cmd_deprecated = 0;
|
||
}
|
||
alias->replacement = replacement;
|
||
alias->malloced_replacement = 1;
|
||
return;
|
||
}
|
||
else if (cmd)
|
||
{
|
||
if (cmd->malloced_replacement)
|
||
xfree ((char *) cmd->replacement);
|
||
|
||
if (deprecate)
|
||
{
|
||
cmd->deprecated_warn_user = 1;
|
||
cmd->cmd_deprecated = 1;
|
||
}
|
||
else
|
||
{
|
||
cmd->deprecated_warn_user = 0;
|
||
cmd->cmd_deprecated = 0;
|
||
}
|
||
cmd->replacement = replacement;
|
||
cmd->malloced_replacement = 1;
|
||
return;
|
||
}
|
||
xfree (replacement);
|
||
}
|
||
|
||
/* Maintenance set/show framework. */
|
||
|
||
struct cmd_list_element *maintenance_set_cmdlist;
|
||
struct cmd_list_element *maintenance_show_cmdlist;
|
||
|
||
static void
|
||
maintenance_set_cmd (char *args, int from_tty)
|
||
{
|
||
printf_unfiltered (_("\"maintenance set\" must be followed "
|
||
"by the name of a set command.\n"));
|
||
help_list (maintenance_set_cmdlist, "maintenance set ", all_commands,
|
||
gdb_stdout);
|
||
}
|
||
|
||
static void
|
||
maintenance_show_cmd (char *args, int from_tty)
|
||
{
|
||
cmd_show_list (maintenance_show_cmdlist, from_tty, "");
|
||
}
|
||
|
||
/* Profiling support. */
|
||
|
||
static int maintenance_profile_p;
|
||
static void
|
||
show_maintenance_profile_p (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c, const char *value)
|
||
{
|
||
fprintf_filtered (file, _("Internal profiling is %s.\n"), value);
|
||
}
|
||
|
||
#ifdef HAVE__ETEXT
|
||
extern char _etext;
|
||
#define TEXTEND &_etext
|
||
#elif defined (HAVE_ETEXT)
|
||
extern char etext;
|
||
#define TEXTEND &etext
|
||
#endif
|
||
|
||
#if defined (HAVE_MONSTARTUP) && defined (HAVE__MCLEANUP) && defined (TEXTEND)
|
||
|
||
static int profiling_state;
|
||
|
||
EXTERN_C void _mcleanup (void);
|
||
|
||
static void
|
||
mcleanup_wrapper (void)
|
||
{
|
||
if (profiling_state)
|
||
_mcleanup ();
|
||
}
|
||
|
||
EXTERN_C void monstartup (unsigned long, unsigned long);
|
||
extern int main ();
|
||
|
||
static void
|
||
maintenance_set_profile_cmd (char *args, int from_tty,
|
||
struct cmd_list_element *c)
|
||
{
|
||
if (maintenance_profile_p == profiling_state)
|
||
return;
|
||
|
||
profiling_state = maintenance_profile_p;
|
||
|
||
if (maintenance_profile_p)
|
||
{
|
||
static int profiling_initialized;
|
||
|
||
if (!profiling_initialized)
|
||
{
|
||
atexit (mcleanup_wrapper);
|
||
profiling_initialized = 1;
|
||
}
|
||
|
||
/* "main" is now always the first function in the text segment, so use
|
||
its address for monstartup. */
|
||
monstartup ((unsigned long) &main, (unsigned long) TEXTEND);
|
||
}
|
||
else
|
||
{
|
||
extern void _mcleanup (void);
|
||
|
||
_mcleanup ();
|
||
}
|
||
}
|
||
#else
|
||
static void
|
||
maintenance_set_profile_cmd (char *args, int from_tty,
|
||
struct cmd_list_element *c)
|
||
{
|
||
error (_("Profiling support is not available on this system."));
|
||
}
|
||
#endif
|
||
|
||
/* If nonzero, display time usage both at startup and for each command. */
|
||
|
||
static int per_command_time;
|
||
|
||
/* If nonzero, display space usage both at startup and for each command. */
|
||
|
||
static int per_command_space;
|
||
|
||
/* If nonzero, display basic symtab stats for each command. */
|
||
|
||
static int per_command_symtab;
|
||
|
||
/* mt per-command commands. */
|
||
|
||
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). */
|
||
|
||
void
|
||
set_per_command_time (int new_value)
|
||
{
|
||
per_command_time = new_value;
|
||
}
|
||
|
||
/* Set whether to display space statistics to NEW_VALUE
|
||
(non-zero means true). */
|
||
|
||
void
|
||
set_per_command_space (int new_value)
|
||
{
|
||
per_command_space = new_value;
|
||
}
|
||
|
||
/* Count the number of symtabs and blocks. */
|
||
|
||
static void
|
||
count_symtabs_and_blocks (int *nr_symtabs_ptr, int *nr_compunit_symtabs_ptr,
|
||
int *nr_blocks_ptr)
|
||
{
|
||
struct objfile *o;
|
||
struct compunit_symtab *cu;
|
||
struct symtab *s;
|
||
int nr_symtabs = 0;
|
||
int nr_compunit_symtabs = 0;
|
||
int nr_blocks = 0;
|
||
|
||
/* When collecting statistics during startup, this is called before
|
||
pretty much anything in gdb has been initialized, and thus
|
||
current_program_space may be NULL. */
|
||
if (current_program_space != NULL)
|
||
{
|
||
ALL_COMPUNITS (o, cu)
|
||
{
|
||
++nr_compunit_symtabs;
|
||
nr_blocks += BLOCKVECTOR_NBLOCKS (COMPUNIT_BLOCKVECTOR (cu));
|
||
ALL_COMPUNIT_FILETABS (cu, s)
|
||
++nr_symtabs;
|
||
}
|
||
}
|
||
|
||
*nr_symtabs_ptr = nr_symtabs;
|
||
*nr_compunit_symtabs_ptr = nr_compunit_symtabs;
|
||
*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. */
|
||
|
||
static void
|
||
report_command_stats (void *arg)
|
||
{
|
||
struct cmd_stats *start_stats = (struct cmd_stats *) arg;
|
||
int msg_type = start_stats->msg_type;
|
||
|
||
if (start_stats->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;
|
||
|
||
gettimeofday (&now_wall_time, NULL);
|
||
timeval_sub (&delta_wall_time,
|
||
&now_wall_time, &start_stats->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);
|
||
}
|
||
|
||
if (start_stats->space_enabled && per_command_space)
|
||
{
|
||
#ifdef HAVE_SBRK
|
||
char *lim = (char *) sbrk (0);
|
||
|
||
long space_now = lim - lim_at_start;
|
||
long space_diff = space_now - start_stats->start_space;
|
||
|
||
printf_unfiltered (msg_type == 0
|
||
? _("Space used: %ld (%s%ld during startup)\n")
|
||
: _("Space used: %ld (%s%ld for this command)\n"),
|
||
space_now,
|
||
(space_diff >= 0 ? "+" : ""),
|
||
space_diff);
|
||
#endif
|
||
}
|
||
|
||
if (start_stats->symtab_enabled && per_command_symtab)
|
||
{
|
||
int nr_symtabs, nr_compunit_symtabs, nr_blocks;
|
||
|
||
count_symtabs_and_blocks (&nr_symtabs, &nr_compunit_symtabs, &nr_blocks);
|
||
printf_unfiltered (_("#symtabs: %d (+%d),"
|
||
" #compunits: %d (+%d),"
|
||
" #blocks: %d (+%d)\n"),
|
||
nr_symtabs,
|
||
nr_symtabs - start_stats->start_nr_symtabs,
|
||
nr_compunit_symtabs,
|
||
(nr_compunit_symtabs
|
||
- start_stats->start_nr_compunit_symtabs),
|
||
nr_blocks,
|
||
nr_blocks - start_stats->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)
|
||
{
|
||
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)
|
||
{
|
||
#ifdef HAVE_SBRK
|
||
char *lim = (char *) sbrk (0);
|
||
new_stat->start_space = lim - lim_at_start;
|
||
new_stat->space_enabled = 1;
|
||
#endif
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
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;
|
||
}
|
||
|
||
/* Initalize 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)
|
||
{
|
||
struct cmd_list_element *list;
|
||
size_t length;
|
||
int val;
|
||
|
||
val = parse_cli_boolean_value (args);
|
||
if (val < 0)
|
||
error (_("Bad value for 'mt set per-command no'."));
|
||
|
||
for (list = per_command_setlist; list != NULL; list = list->next)
|
||
if (list->var_type == var_boolean)
|
||
{
|
||
gdb_assert (list->type == set_cmd);
|
||
do_set_command (args, from_tty, list);
|
||
}
|
||
}
|
||
|
||
/* Command "show per-command" displays summary of all the current
|
||
"show per-command " settings. */
|
||
|
||
static void
|
||
show_per_command_cmd (char *args, int from_tty)
|
||
{
|
||
cmd_show_list (per_command_showlist, from_tty, "");
|
||
}
|
||
|
||
void
|
||
_initialize_maint_cmds (void)
|
||
{
|
||
struct cmd_list_element *cmd;
|
||
|
||
add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, _("\
|
||
Commands for use by GDB maintainers.\n\
|
||
Includes commands to dump specific internal GDB structures in\n\
|
||
a human readable form, to cause GDB to deliberately dump core, etc."),
|
||
&maintenancelist, "maintenance ", 0,
|
||
&cmdlist);
|
||
|
||
add_com_alias ("mt", "maintenance", class_maintenance, 1);
|
||
|
||
add_prefix_cmd ("info", class_maintenance, maintenance_info_command, _("\
|
||
Commands for showing internal info about the program being debugged."),
|
||
&maintenanceinfolist, "maintenance info ", 0,
|
||
&maintenancelist);
|
||
add_alias_cmd ("i", "info", class_maintenance, 1, &maintenancelist);
|
||
|
||
add_cmd ("sections", class_maintenance, maintenance_info_sections, _("\
|
||
List the BFD sections of the exec and core files. \n\
|
||
Arguments may be any combination of:\n\
|
||
[one or more section names]\n\
|
||
ALLOC LOAD RELOC READONLY CODE DATA ROM CONSTRUCTOR\n\
|
||
HAS_CONTENTS NEVER_LOAD COFF_SHARED_LIBRARY IS_COMMON\n\
|
||
Sections matching any argument will be listed (no argument\n\
|
||
implies all sections). In addition, the special argument\n\
|
||
ALLOBJ\n\
|
||
lists all sections from all object files, including shared libraries."),
|
||
&maintenanceinfolist);
|
||
|
||
add_prefix_cmd ("print", class_maintenance, maintenance_print_command,
|
||
_("Maintenance command for printing GDB internal state."),
|
||
&maintenanceprintlist, "maintenance print ", 0,
|
||
&maintenancelist);
|
||
|
||
add_prefix_cmd ("set", class_maintenance, maintenance_set_cmd, _("\
|
||
Set GDB internal variables used by the GDB maintainer.\n\
|
||
Configure variables internal to GDB that aid in GDB's maintenance"),
|
||
&maintenance_set_cmdlist, "maintenance set ",
|
||
0/*allow-unknown*/,
|
||
&maintenancelist);
|
||
|
||
add_prefix_cmd ("show", class_maintenance, maintenance_show_cmd, _("\
|
||
Show GDB internal variables used by the GDB maintainer.\n\
|
||
Configure variables internal to GDB that aid in GDB's maintenance"),
|
||
&maintenance_show_cmdlist, "maintenance show ",
|
||
0/*allow-unknown*/,
|
||
&maintenancelist);
|
||
|
||
#ifndef _WIN32
|
||
add_cmd ("dump-me", class_maintenance, maintenance_dump_me, _("\
|
||
Get fatal error; make debugger dump its core.\n\
|
||
GDB sets its handling of SIGQUIT back to SIG_DFL and then sends\n\
|
||
itself a SIGQUIT signal."),
|
||
&maintenancelist);
|
||
#endif
|
||
|
||
add_cmd ("internal-error", class_maintenance,
|
||
maintenance_internal_error, _("\
|
||
Give GDB an internal error.\n\
|
||
Cause GDB to behave as if an internal error was detected."),
|
||
&maintenancelist);
|
||
|
||
add_cmd ("internal-warning", class_maintenance,
|
||
maintenance_internal_warning, _("\
|
||
Give GDB an internal warning.\n\
|
||
Cause GDB to behave as if an internal warning was reported."),
|
||
&maintenancelist);
|
||
|
||
add_cmd ("demangler-warning", class_maintenance,
|
||
maintenance_demangler_warning, _("\
|
||
Give GDB a demangler warning.\n\
|
||
Cause GDB to behave as if a demangler warning was reported."),
|
||
&maintenancelist);
|
||
|
||
cmd = add_cmd ("demangle", class_maintenance, maintenance_demangle, _("\
|
||
This command has been moved to \"demangle\"."),
|
||
&maintenancelist);
|
||
deprecate_cmd (cmd, "demangle");
|
||
|
||
add_prefix_cmd ("per-command", class_maintenance, set_per_command_cmd, _("\
|
||
Per-command statistics settings."),
|
||
&per_command_setlist, "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 ",
|
||
0/*allow-unknown*/, &maintenance_show_cmdlist);
|
||
|
||
add_setshow_boolean_cmd ("time", class_maintenance,
|
||
&per_command_time, _("\
|
||
Set whether to display per-command execution time."), _("\
|
||
Show whether to display per-command execution time."),
|
||
_("\
|
||
If enabled, the execution time for each command will be\n\
|
||
displayed following the command's output."),
|
||
NULL, NULL,
|
||
&per_command_setlist, &per_command_showlist);
|
||
|
||
add_setshow_boolean_cmd ("space", class_maintenance,
|
||
&per_command_space, _("\
|
||
Set whether to display per-command space usage."), _("\
|
||
Show whether to display per-command space usage."),
|
||
_("\
|
||
If enabled, the space usage for each command will be\n\
|
||
displayed following the command's output."),
|
||
NULL, NULL,
|
||
&per_command_setlist, &per_command_showlist);
|
||
|
||
add_setshow_boolean_cmd ("symtab", class_maintenance,
|
||
&per_command_symtab, _("\
|
||
Set whether to display per-command symtab statistics."), _("\
|
||
Show whether to display per-command symtab statistics."),
|
||
_("\
|
||
If enabled, the basic symtab statistics for each command will be\n\
|
||
displayed following the command's output."),
|
||
NULL, NULL,
|
||
&per_command_setlist, &per_command_showlist);
|
||
|
||
/* This is equivalent to "mt set per-command time on".
|
||
Kept because some people are used to typing "mt time 1". */
|
||
add_cmd ("time", class_maintenance, maintenance_time_display, _("\
|
||
Set the display of time usage.\n\
|
||
If nonzero, will cause the execution time for each command to be\n\
|
||
displayed, following the command's output."),
|
||
&maintenancelist);
|
||
|
||
/* This is equivalent to "mt set per-command space on".
|
||
Kept because some people are used to typing "mt space 1". */
|
||
add_cmd ("space", class_maintenance, maintenance_space_display, _("\
|
||
Set the display of space usage.\n\
|
||
If nonzero, will cause the execution space for each command to be\n\
|
||
displayed, following the command's output."),
|
||
&maintenancelist);
|
||
|
||
add_cmd ("type", class_maintenance, maintenance_print_type, _("\
|
||
Print a type chain for a given symbol.\n\
|
||
For each node in a type chain, print the raw data for each member of\n\
|
||
the type structure, and the interpretation of the data."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("statistics", class_maintenance, maintenance_print_statistics,
|
||
_("Print statistics about internal gdb state."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("architecture", class_maintenance,
|
||
maintenance_print_architecture, _("\
|
||
Print the internal architecture configuration.\n\
|
||
Takes an optional file parameter."),
|
||
&maintenanceprintlist);
|
||
|
||
add_cmd ("translate-address", class_maintenance,
|
||
maintenance_translate_address,
|
||
_("Translate a section name and address to a symbol."),
|
||
&maintenancelist);
|
||
|
||
add_cmd ("deprecate", class_maintenance, maintenance_deprecate, _("\
|
||
Deprecate a command. Note that this is just in here so the \n\
|
||
testsuite can check the command deprecator. You probably shouldn't use this,\n\
|
||
rather you should use the C function deprecate_cmd(). If you decide you \n\
|
||
want to use it: maintenance deprecate 'commandname' \"replacement\". The \n\
|
||
replacement is optional."), &maintenancelist);
|
||
|
||
add_cmd ("undeprecate", class_maintenance, maintenance_undeprecate, _("\
|
||
Undeprecate a command. Note that this is just in here so the \n\
|
||
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_setshow_zinteger_cmd ("watchdog", class_maintenance, &watchdog, _("\
|
||
Set watchdog timer."), _("\
|
||
Show watchdog timer."), _("\
|
||
When non-zero, this timeout is used instead of waiting forever for a target\n\
|
||
to finish a low-level step or continue operation. If the specified amount\n\
|
||
of time passes without a response from the target, an error occurs."),
|
||
NULL,
|
||
show_watchdog,
|
||
&setlist, &showlist);
|
||
|
||
add_setshow_boolean_cmd ("profile", class_maintenance,
|
||
&maintenance_profile_p, _("\
|
||
Set internal profiling."), _("\
|
||
Show internal profiling."), _("\
|
||
When enabled GDB is profiled."),
|
||
maintenance_set_profile_cmd,
|
||
show_maintenance_profile_p,
|
||
&maintenance_set_cmdlist,
|
||
&maintenance_show_cmdlist);
|
||
}
|