1277 lines
36 KiB
C
1277 lines
36 KiB
C
/* GDB CLI commands.
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Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include <readline/tilde.h>
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#include "completer.h"
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#include "target.h" /* For baud_rate, remote_debug and remote_timeout */
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#include "gdb_wait.h" /* For shell escape implementation */
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#include "gdb_regex.h" /* Used by apropos_command */
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#include "gdb_string.h"
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#include "gdb_vfork.h"
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#include "linespec.h"
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#include "expression.h"
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#include "frame.h"
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#include "value.h"
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#include "language.h"
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#include "filenames.h" /* for DOSish file names */
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#include "objfiles.h"
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#include "source.h"
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#include "disasm.h"
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#include "ui-out.h"
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#include "top.h"
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#include "cli/cli-decode.h"
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#include "cli/cli-script.h"
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#include "cli/cli-setshow.h"
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#include "cli/cli-cmds.h"
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#ifndef GDBINIT_FILENAME
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#define GDBINIT_FILENAME ".gdbinit"
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#endif
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/* Prototypes for local command functions */
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static void complete_command (char *, int);
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static void echo_command (char *, int);
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static void pwd_command (char *, int);
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static void show_version (char *, int);
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static void validate_comname (char *);
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static void help_command (char *, int);
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static void show_command (char *, int);
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static void info_command (char *, int);
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static void show_debug (char *, int);
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static void set_debug (char *, int);
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static void show_user (char *, int);
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static void make_command (char *, int);
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static void shell_escape (char *, int);
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static void edit_command (char *, int);
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static void list_command (char *, int);
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void apropos_command (char *, int);
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/* Prototypes for local utility functions */
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static void ambiguous_line_spec (struct symtabs_and_lines *);
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/* Limit the call depth of user-defined commands */
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int max_user_call_depth;
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/* Define all cmd_list_elements. */
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/* Chain containing all defined commands. */
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struct cmd_list_element *cmdlist;
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/* Chain containing all defined info subcommands. */
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struct cmd_list_element *infolist;
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/* Chain containing all defined enable subcommands. */
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struct cmd_list_element *enablelist;
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/* Chain containing all defined disable subcommands. */
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struct cmd_list_element *disablelist;
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/* Chain containing all defined toggle subcommands. */
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struct cmd_list_element *togglelist;
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/* Chain containing all defined stop subcommands. */
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struct cmd_list_element *stoplist;
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/* Chain containing all defined delete subcommands. */
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struct cmd_list_element *deletelist;
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/* Chain containing all defined "enable breakpoint" subcommands. */
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struct cmd_list_element *enablebreaklist;
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/* Chain containing all defined set subcommands */
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struct cmd_list_element *setlist;
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/* Chain containing all defined unset subcommands */
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struct cmd_list_element *unsetlist;
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/* Chain containing all defined show subcommands. */
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struct cmd_list_element *showlist;
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/* Chain containing all defined \"set history\". */
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struct cmd_list_element *sethistlist;
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/* Chain containing all defined \"show history\". */
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struct cmd_list_element *showhistlist;
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/* Chain containing all defined \"unset history\". */
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struct cmd_list_element *unsethistlist;
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/* Chain containing all defined maintenance subcommands. */
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struct cmd_list_element *maintenancelist;
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/* Chain containing all defined "maintenance info" subcommands. */
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struct cmd_list_element *maintenanceinfolist;
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/* Chain containing all defined "maintenance print" subcommands. */
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struct cmd_list_element *maintenanceprintlist;
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struct cmd_list_element *setprintlist;
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struct cmd_list_element *showprintlist;
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struct cmd_list_element *setdebuglist;
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struct cmd_list_element *showdebuglist;
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struct cmd_list_element *setchecklist;
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struct cmd_list_element *showchecklist;
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/* Utility used everywhere when at least one argument is needed and
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none is supplied. */
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void
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error_no_arg (char *why)
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{
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error ("Argument required (%s).", why);
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}
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/* The "info" command is defined as a prefix, with allow_unknown = 0.
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Therefore, its own definition is called only for "info" with no args. */
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/* ARGSUSED */
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static void
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info_command (char *arg, int from_tty)
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{
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printf_unfiltered ("\"info\" must be followed by the name of an info command.\n");
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help_list (infolist, "info ", -1, gdb_stdout);
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}
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/* The "show" command with no arguments shows all the settings. */
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/* ARGSUSED */
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static void
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show_command (char *arg, int from_tty)
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{
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cmd_show_list (showlist, from_tty, "");
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}
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/* Provide documentation on command or list given by COMMAND. FROM_TTY
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is ignored. */
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/* ARGSUSED */
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static void
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help_command (char *command, int from_tty)
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{
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help_cmd (command, gdb_stdout);
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}
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/* String compare function for qsort. */
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static int
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compare_strings (const void *arg1, const void *arg2)
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{
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const char **s1 = (const char **) arg1;
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const char **s2 = (const char **) arg2;
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return strcmp (*s1, *s2);
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}
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/* The "complete" command is used by Emacs to implement completion. */
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/* ARGSUSED */
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static void
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complete_command (char *arg, int from_tty)
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{
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int i;
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int argpoint;
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char **completions;
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dont_repeat ();
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if (arg == NULL)
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arg = "";
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argpoint = strlen (arg);
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completions = complete_line (arg, arg, argpoint);
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if (completions)
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{
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int item, size;
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for (size = 0; completions[size]; ++size)
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;
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qsort (completions, size, sizeof (char *), compare_strings);
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/* We do extra processing here since we only want to print each
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unique item once. */
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item = 0;
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while (item < size)
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{
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int next_item;
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printf_unfiltered ("%s\n", completions[item]);
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next_item = item + 1;
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while (next_item < size
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&& ! strcmp (completions[item], completions[next_item]))
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{
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xfree (completions[next_item]);
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++next_item;
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}
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xfree (completions[item]);
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item = next_item;
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}
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xfree (completions);
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}
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}
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int
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is_complete_command (struct cmd_list_element *c)
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{
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return cmd_cfunc_eq (c, complete_command);
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}
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/* ARGSUSED */
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static void
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show_version (char *args, int from_tty)
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{
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immediate_quit++;
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print_gdb_version (gdb_stdout);
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printf_filtered ("\n");
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immediate_quit--;
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}
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/* Handle the quit command. */
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void
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quit_command (char *args, int from_tty)
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{
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if (!quit_confirm ())
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error ("Not confirmed.");
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quit_force (args, from_tty);
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}
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/* ARGSUSED */
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static void
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pwd_command (char *args, int from_tty)
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{
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if (args)
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error ("The \"pwd\" command does not take an argument: %s", args);
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getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
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if (!STREQ (gdb_dirbuf, current_directory))
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printf_unfiltered ("Working directory %s\n (canonically %s).\n",
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current_directory, gdb_dirbuf);
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else
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printf_unfiltered ("Working directory %s.\n", current_directory);
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}
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void
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cd_command (char *dir, int from_tty)
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{
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int len;
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/* Found something other than leading repetitions of "/..". */
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int found_real_path;
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char *p;
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/* If the new directory is absolute, repeat is a no-op; if relative,
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repeat might be useful but is more likely to be a mistake. */
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dont_repeat ();
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if (dir == 0)
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error_no_arg ("new working directory");
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dir = tilde_expand (dir);
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make_cleanup (xfree, dir);
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if (chdir (dir) < 0)
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perror_with_name (dir);
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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/* There's too much mess with DOSish names like "d:", "d:.",
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"d:./foo" etc. Instead of having lots of special #ifdef'ed code,
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simply get the canonicalized name of the current directory. */
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dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
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#endif
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len = strlen (dir);
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if (IS_DIR_SEPARATOR (dir[len - 1]))
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{
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/* Remove the trailing slash unless this is a root directory
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(including a drive letter on non-Unix systems). */
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if (!(len == 1) /* "/" */
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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&& !(len == 3 && dir[1] == ':') /* "d:/" */
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#endif
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)
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len--;
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}
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dir = savestring (dir, len);
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if (IS_ABSOLUTE_PATH (dir))
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current_directory = dir;
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else
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{
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if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
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current_directory = concat (current_directory, dir, NULL);
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else
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current_directory = concat (current_directory, SLASH_STRING, dir, NULL);
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xfree (dir);
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}
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/* Now simplify any occurrences of `.' and `..' in the pathname. */
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found_real_path = 0;
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for (p = current_directory; *p;)
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{
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if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
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&& (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
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strcpy (p, p + 2);
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else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
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&& (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
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{
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if (found_real_path)
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{
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/* Search backwards for the directory just before the "/.."
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and obliterate it and the "/..". */
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char *q = p;
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while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
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--q;
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if (q == current_directory)
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/* current_directory is
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a relative pathname ("can't happen"--leave it alone). */
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++p;
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else
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{
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strcpy (q - 1, p + 3);
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p = q - 1;
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}
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}
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else
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/* We are dealing with leading repetitions of "/..", for example
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"/../..", which is the Mach super-root. */
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p += 3;
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}
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else
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{
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found_real_path = 1;
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++p;
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}
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}
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forget_cached_source_info ();
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if (from_tty)
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pwd_command ((char *) 0, 1);
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}
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void
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source_command (char *args, int from_tty)
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{
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FILE *stream;
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struct cleanup *old_cleanups;
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char *file = args;
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if (file == NULL)
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{
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error ("source command requires pathname of file to source.");
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}
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file = tilde_expand (file);
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old_cleanups = make_cleanup (xfree, file);
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stream = fopen (file, FOPEN_RT);
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if (!stream)
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{
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if (from_tty)
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perror_with_name (file);
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else
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return;
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}
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script_from_file (stream, file);
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do_cleanups (old_cleanups);
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}
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/* ARGSUSED */
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static void
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echo_command (char *text, int from_tty)
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{
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char *p = text;
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register int c;
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if (text)
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while ((c = *p++) != '\0')
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{
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if (c == '\\')
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{
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/* \ at end of argument is used after spaces
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so they won't be lost. */
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if (*p == 0)
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return;
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c = parse_escape (&p);
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if (c >= 0)
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printf_filtered ("%c", c);
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}
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else
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printf_filtered ("%c", c);
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}
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/* Force this output to appear now. */
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wrap_here ("");
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gdb_flush (gdb_stdout);
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}
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||
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/* ARGSUSED */
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||
static void
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||
shell_escape (char *arg, int from_tty)
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{
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||
#ifdef CANT_FORK
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||
/* If ARG is NULL, they want an inferior shell, but `system' just
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reports if the shell is available when passed a NULL arg. */
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int rc = system (arg ? arg : "");
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if (!arg)
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arg = "inferior shell";
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if (rc == -1)
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||
{
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||
fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
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safe_strerror (errno));
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||
gdb_flush (gdb_stderr);
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||
}
|
||
else if (rc)
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||
{
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||
fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
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||
gdb_flush (gdb_stderr);
|
||
}
|
||
#ifdef GLOBAL_CURDIR
|
||
/* Make sure to return to the directory GDB thinks it is, in case the
|
||
shell command we just ran changed it. */
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||
chdir (current_directory);
|
||
#endif
|
||
#else /* Can fork. */
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||
int rc, status, pid;
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||
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||
if ((pid = vfork ()) == 0)
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||
{
|
||
char *p, *user_shell;
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||
|
||
if ((user_shell = (char *) getenv ("SHELL")) == NULL)
|
||
user_shell = "/bin/sh";
|
||
|
||
/* Get the name of the shell for arg0 */
|
||
if ((p = strrchr (user_shell, '/')) == NULL)
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||
p = user_shell;
|
||
else
|
||
p++; /* Get past '/' */
|
||
|
||
if (!arg)
|
||
execl (user_shell, p, 0);
|
||
else
|
||
execl (user_shell, p, "-c", arg, 0);
|
||
|
||
fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
|
||
safe_strerror (errno));
|
||
gdb_flush (gdb_stderr);
|
||
_exit (0177);
|
||
}
|
||
|
||
if (pid != -1)
|
||
while ((rc = wait (&status)) != pid && rc != -1)
|
||
;
|
||
else
|
||
error ("Fork failed");
|
||
#endif /* Can fork. */
|
||
}
|
||
|
||
static void
|
||
edit_command (char *arg, int from_tty)
|
||
{
|
||
struct symtabs_and_lines sals;
|
||
struct symtab_and_line sal;
|
||
struct symbol *sym;
|
||
char *arg1;
|
||
int cmdlen, log10;
|
||
unsigned m;
|
||
char *editor;
|
||
char *p;
|
||
|
||
/* Pull in the current default source line if necessary */
|
||
if (arg == 0)
|
||
{
|
||
set_default_source_symtab_and_line ();
|
||
sal = get_current_source_symtab_and_line ();
|
||
}
|
||
|
||
/* bare "edit" edits file with present line. */
|
||
|
||
if (arg == 0)
|
||
{
|
||
if (sal.symtab == 0)
|
||
error ("No default source file yet.");
|
||
sal.line += get_lines_to_list () / 2;
|
||
}
|
||
else
|
||
{
|
||
|
||
/* Now should only be one argument -- decode it in SAL */
|
||
|
||
arg1 = arg;
|
||
sals = decode_line_1 (&arg1, 0, 0, 0, 0);
|
||
|
||
if (! sals.nelts) return; /* C++ */
|
||
if (sals.nelts > 1) {
|
||
ambiguous_line_spec (&sals);
|
||
xfree (sals.sals);
|
||
return;
|
||
}
|
||
|
||
sal = sals.sals[0];
|
||
xfree (sals.sals);
|
||
|
||
if (*arg1)
|
||
error ("Junk at end of line specification.");
|
||
|
||
/* if line was specified by address,
|
||
first print exactly which line, and which file.
|
||
In this case, sal.symtab == 0 means address is outside
|
||
of all known source files, not that user failed to give a filename. */
|
||
if (*arg == '*')
|
||
{
|
||
if (sal.symtab == 0)
|
||
/* FIXME-32x64--assumes sal.pc fits in long. */
|
||
error ("No source file for address %s.",
|
||
local_hex_string((unsigned long) sal.pc));
|
||
sym = find_pc_function (sal.pc);
|
||
if (sym)
|
||
{
|
||
print_address_numeric (sal.pc, 1, gdb_stdout);
|
||
printf_filtered (" is in ");
|
||
fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout);
|
||
printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line);
|
||
}
|
||
else
|
||
{
|
||
print_address_numeric (sal.pc, 1, gdb_stdout);
|
||
printf_filtered (" is at %s:%d.\n",
|
||
sal.symtab->filename, sal.line);
|
||
}
|
||
}
|
||
|
||
/* If what was given does not imply a symtab, it must be an undebuggable
|
||
symbol which means no source code. */
|
||
|
||
if (sal.symtab == 0)
|
||
error ("No line number known for %s.", arg);
|
||
}
|
||
|
||
if ((editor = (char *) getenv ("EDITOR")) == NULL)
|
||
editor = "/bin/ex";
|
||
|
||
/* Approximate base-10 log of line to 1 unit for digit count */
|
||
for(log10=32, m=0x80000000; !(sal.line & m) && log10>0; log10--, m=m>>1);
|
||
log10 = 1 + (int)((log10 + (0 == ((m-1) & sal.line)))/3.32192809);
|
||
|
||
cmdlen = strlen(editor) + 1
|
||
+ (NULL == sal.symtab->dirname ? 0 : strlen(sal.symtab->dirname) + 1)
|
||
+ (NULL == sal.symtab->filename? 0 : strlen(sal.symtab->filename)+ 1)
|
||
+ log10 + 2;
|
||
|
||
p = xmalloc(cmdlen);
|
||
sprintf(p,"%s +%d %s%s",editor,sal.line,
|
||
(NULL == sal.symtab->dirname ? "./" :
|
||
(NULL != sal.symtab->filename && *(sal.symtab->filename) != '/') ?
|
||
sal.symtab->dirname : ""),
|
||
(NULL == sal.symtab->filename ? "unknown" : sal.symtab->filename)
|
||
);
|
||
shell_escape(p, from_tty);
|
||
|
||
xfree(p);
|
||
}
|
||
|
||
static void
|
||
list_command (char *arg, int from_tty)
|
||
{
|
||
struct symtabs_and_lines sals, sals_end;
|
||
struct symtab_and_line sal, sal_end, cursal;
|
||
struct symbol *sym;
|
||
char *arg1;
|
||
int no_end = 1;
|
||
int dummy_end = 0;
|
||
int dummy_beg = 0;
|
||
int linenum_beg = 0;
|
||
char *p;
|
||
|
||
/* Pull in the current default source line if necessary */
|
||
if (arg == 0 || arg[0] == '+' || arg[0] == '-')
|
||
{
|
||
set_default_source_symtab_and_line ();
|
||
cursal = get_current_source_symtab_and_line ();
|
||
}
|
||
|
||
/* "l" or "l +" lists next ten lines. */
|
||
|
||
if (arg == 0 || STREQ (arg, "+"))
|
||
{
|
||
print_source_lines (cursal.symtab, cursal.line,
|
||
cursal.line + get_lines_to_list (), 0);
|
||
return;
|
||
}
|
||
|
||
/* "l -" lists previous ten lines, the ones before the ten just listed. */
|
||
if (STREQ (arg, "-"))
|
||
{
|
||
print_source_lines (cursal.symtab,
|
||
max (get_first_line_listed () - get_lines_to_list (), 1),
|
||
get_first_line_listed (), 0);
|
||
return;
|
||
}
|
||
|
||
/* Now if there is only one argument, decode it in SAL
|
||
and set NO_END.
|
||
If there are two arguments, decode them in SAL and SAL_END
|
||
and clear NO_END; however, if one of the arguments is blank,
|
||
set DUMMY_BEG or DUMMY_END to record that fact. */
|
||
|
||
if (!have_full_symbols () && !have_partial_symbols ())
|
||
error ("No symbol table is loaded. Use the \"file\" command.");
|
||
|
||
arg1 = arg;
|
||
if (*arg1 == ',')
|
||
dummy_beg = 1;
|
||
else
|
||
{
|
||
sals = decode_line_1 (&arg1, 0, 0, 0, 0);
|
||
|
||
if (!sals.nelts)
|
||
return; /* C++ */
|
||
if (sals.nelts > 1)
|
||
{
|
||
ambiguous_line_spec (&sals);
|
||
xfree (sals.sals);
|
||
return;
|
||
}
|
||
|
||
sal = sals.sals[0];
|
||
xfree (sals.sals);
|
||
}
|
||
|
||
/* Record whether the BEG arg is all digits. */
|
||
|
||
for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
|
||
linenum_beg = (p == arg1);
|
||
|
||
while (*arg1 == ' ' || *arg1 == '\t')
|
||
arg1++;
|
||
if (*arg1 == ',')
|
||
{
|
||
no_end = 0;
|
||
arg1++;
|
||
while (*arg1 == ' ' || *arg1 == '\t')
|
||
arg1++;
|
||
if (*arg1 == 0)
|
||
dummy_end = 1;
|
||
else
|
||
{
|
||
if (dummy_beg)
|
||
sals_end = decode_line_1 (&arg1, 0, 0, 0, 0);
|
||
else
|
||
sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0);
|
||
if (sals_end.nelts == 0)
|
||
return;
|
||
if (sals_end.nelts > 1)
|
||
{
|
||
ambiguous_line_spec (&sals_end);
|
||
xfree (sals_end.sals);
|
||
return;
|
||
}
|
||
sal_end = sals_end.sals[0];
|
||
xfree (sals_end.sals);
|
||
}
|
||
}
|
||
|
||
if (*arg1)
|
||
error ("Junk at end of line specification.");
|
||
|
||
if (!no_end && !dummy_beg && !dummy_end
|
||
&& sal.symtab != sal_end.symtab)
|
||
error ("Specified start and end are in different files.");
|
||
if (dummy_beg && dummy_end)
|
||
error ("Two empty args do not say what lines to list.");
|
||
|
||
/* if line was specified by address,
|
||
first print exactly which line, and which file.
|
||
In this case, sal.symtab == 0 means address is outside
|
||
of all known source files, not that user failed to give a filename. */
|
||
if (*arg == '*')
|
||
{
|
||
if (sal.symtab == 0)
|
||
/* FIXME-32x64--assumes sal.pc fits in long. */
|
||
error ("No source file for address %s.",
|
||
local_hex_string ((unsigned long) sal.pc));
|
||
sym = find_pc_function (sal.pc);
|
||
if (sym)
|
||
{
|
||
print_address_numeric (sal.pc, 1, gdb_stdout);
|
||
printf_filtered (" is in ");
|
||
fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout);
|
||
printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line);
|
||
}
|
||
else
|
||
{
|
||
print_address_numeric (sal.pc, 1, gdb_stdout);
|
||
printf_filtered (" is at %s:%d.\n",
|
||
sal.symtab->filename, sal.line);
|
||
}
|
||
}
|
||
|
||
/* If line was not specified by just a line number,
|
||
and it does not imply a symtab, it must be an undebuggable symbol
|
||
which means no source code. */
|
||
|
||
if (!linenum_beg && sal.symtab == 0)
|
||
error ("No line number known for %s.", arg);
|
||
|
||
/* If this command is repeated with RET,
|
||
turn it into the no-arg variant. */
|
||
|
||
if (from_tty)
|
||
*arg = 0;
|
||
|
||
if (dummy_beg && sal_end.symtab == 0)
|
||
error ("No default source file yet. Do \"help list\".");
|
||
if (dummy_beg)
|
||
print_source_lines (sal_end.symtab,
|
||
max (sal_end.line - (get_lines_to_list () - 1), 1),
|
||
sal_end.line + 1, 0);
|
||
else if (sal.symtab == 0)
|
||
error ("No default source file yet. Do \"help list\".");
|
||
else if (no_end)
|
||
{
|
||
int first_line = sal.line - get_lines_to_list () / 2;
|
||
|
||
if (first_line < 1) first_line = 1;
|
||
|
||
print_source_lines (sal.symtab,
|
||
first_line,
|
||
first_line + get_lines_to_list (),
|
||
0);
|
||
}
|
||
else
|
||
print_source_lines (sal.symtab, sal.line,
|
||
(dummy_end
|
||
? sal.line + get_lines_to_list ()
|
||
: sal_end.line + 1),
|
||
0);
|
||
}
|
||
|
||
/* Dump a specified section of assembly code. With no command line
|
||
arguments, this command will dump the assembly code for the
|
||
function surrounding the pc value in the selected frame. With one
|
||
argument, it will dump the assembly code surrounding that pc value.
|
||
Two arguments are interpeted as bounds within which to dump
|
||
assembly. */
|
||
|
||
/* ARGSUSED */
|
||
static void
|
||
disassemble_command (char *arg, int from_tty)
|
||
{
|
||
CORE_ADDR low, high;
|
||
char *name;
|
||
CORE_ADDR pc, pc_masked;
|
||
char *space_index;
|
||
#if 0
|
||
asection *section;
|
||
#endif
|
||
|
||
name = NULL;
|
||
if (!arg)
|
||
{
|
||
if (!deprecated_selected_frame)
|
||
error ("No frame selected.\n");
|
||
|
||
pc = get_frame_pc (deprecated_selected_frame);
|
||
if (find_pc_partial_function (pc, &name, &low, &high) == 0)
|
||
error ("No function contains program counter for selected frame.\n");
|
||
#if defined(TUI)
|
||
/* NOTE: cagney/2003-02-13 The `tui_active' was previously
|
||
`tui_version'. */
|
||
else if (tui_active)
|
||
low = tuiGetLowDisassemblyAddress (low, pc);
|
||
#endif
|
||
low += FUNCTION_START_OFFSET;
|
||
}
|
||
else if (!(space_index = (char *) strchr (arg, ' ')))
|
||
{
|
||
/* One argument. */
|
||
pc = parse_and_eval_address (arg);
|
||
if (find_pc_partial_function (pc, &name, &low, &high) == 0)
|
||
error ("No function contains specified address.\n");
|
||
#if defined(TUI)
|
||
/* NOTE: cagney/2003-02-13 The `tui_active' was previously
|
||
`tui_version'. */
|
||
else if (tui_active)
|
||
low = tuiGetLowDisassemblyAddress (low, pc);
|
||
#endif
|
||
low += FUNCTION_START_OFFSET;
|
||
}
|
||
else
|
||
{
|
||
/* Two arguments. */
|
||
*space_index = '\0';
|
||
low = parse_and_eval_address (arg);
|
||
high = parse_and_eval_address (space_index + 1);
|
||
}
|
||
|
||
#if defined(TUI)
|
||
if (!tui_is_window_visible (DISASSEM_WIN))
|
||
#endif
|
||
{
|
||
printf_filtered ("Dump of assembler code ");
|
||
if (name != NULL)
|
||
{
|
||
printf_filtered ("for function %s:\n", name);
|
||
}
|
||
else
|
||
{
|
||
printf_filtered ("from ");
|
||
print_address_numeric (low, 1, gdb_stdout);
|
||
printf_filtered (" to ");
|
||
print_address_numeric (high, 1, gdb_stdout);
|
||
printf_filtered (":\n");
|
||
}
|
||
|
||
/* Dump the specified range. */
|
||
gdb_disassembly (uiout, 0, 0, 0, -1, low, high);
|
||
|
||
printf_filtered ("End of assembler dump.\n");
|
||
gdb_flush (gdb_stdout);
|
||
}
|
||
#if defined(TUI)
|
||
else
|
||
{
|
||
tui_show_assembly (low);
|
||
}
|
||
#endif
|
||
}
|
||
|
||
static void
|
||
make_command (char *arg, int from_tty)
|
||
{
|
||
char *p;
|
||
|
||
if (arg == 0)
|
||
p = "make";
|
||
else
|
||
{
|
||
p = xmalloc (sizeof ("make ") + strlen (arg));
|
||
strcpy (p, "make ");
|
||
strcpy (p + sizeof ("make ") - 1, arg);
|
||
}
|
||
|
||
shell_escape (p, from_tty);
|
||
}
|
||
|
||
/* ARGSUSED */
|
||
static void
|
||
show_user (char *args, int from_tty)
|
||
{
|
||
struct cmd_list_element *c;
|
||
extern struct cmd_list_element *cmdlist;
|
||
|
||
if (args)
|
||
{
|
||
c = lookup_cmd (&args, cmdlist, "", 0, 1);
|
||
if (c->class != class_user)
|
||
error ("Not a user command.");
|
||
show_user_1 (c, gdb_stdout);
|
||
}
|
||
else
|
||
{
|
||
for (c = cmdlist; c; c = c->next)
|
||
{
|
||
if (c->class == class_user)
|
||
show_user_1 (c, gdb_stdout);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Search through names of commands and documentations for a certain
|
||
regular expression.
|
||
*/
|
||
void
|
||
apropos_command (char *searchstr, int from_tty)
|
||
{
|
||
extern struct cmd_list_element *cmdlist; /*This is the main command list*/
|
||
regex_t pattern;
|
||
char *pattern_fastmap;
|
||
char errorbuffer[512];
|
||
pattern_fastmap = xcalloc (256, sizeof (char));
|
||
if (searchstr == NULL)
|
||
error("REGEXP string is empty");
|
||
|
||
if (regcomp(&pattern,searchstr,REG_ICASE) == 0)
|
||
{
|
||
pattern.fastmap=pattern_fastmap;
|
||
re_compile_fastmap(&pattern);
|
||
apropos_cmd (gdb_stdout,cmdlist,&pattern,"");
|
||
}
|
||
else
|
||
{
|
||
regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512);
|
||
error("Error in regular expression:%s",errorbuffer);
|
||
}
|
||
xfree (pattern_fastmap);
|
||
}
|
||
|
||
/* Print a list of files and line numbers which a user may choose from
|
||
in order to list a function which was specified ambiguously (as with
|
||
`list classname::overloadedfuncname', for example). The vector in
|
||
SALS provides the filenames and line numbers. */
|
||
|
||
static void
|
||
ambiguous_line_spec (struct symtabs_and_lines *sals)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < sals->nelts; ++i)
|
||
printf_filtered ("file: \"%s\", line number: %d\n",
|
||
sals->sals[i].symtab->filename, sals->sals[i].line);
|
||
}
|
||
|
||
static void
|
||
set_debug (char *arg, int from_tty)
|
||
{
|
||
printf_unfiltered ("\"set debug\" must be followed by the name of a print subcommand.\n");
|
||
help_list (setdebuglist, "set debug ", -1, gdb_stdout);
|
||
}
|
||
|
||
static void
|
||
show_debug (char *args, int from_tty)
|
||
{
|
||
cmd_show_list (showdebuglist, from_tty, "");
|
||
}
|
||
|
||
void
|
||
init_cmd_lists (void)
|
||
{
|
||
max_user_call_depth = 1024;
|
||
|
||
cmdlist = NULL;
|
||
infolist = NULL;
|
||
enablelist = NULL;
|
||
disablelist = NULL;
|
||
togglelist = NULL;
|
||
stoplist = NULL;
|
||
deletelist = NULL;
|
||
enablebreaklist = NULL;
|
||
setlist = NULL;
|
||
unsetlist = NULL;
|
||
showlist = NULL;
|
||
sethistlist = NULL;
|
||
showhistlist = NULL;
|
||
unsethistlist = NULL;
|
||
maintenancelist = NULL;
|
||
maintenanceinfolist = NULL;
|
||
maintenanceprintlist = NULL;
|
||
setprintlist = NULL;
|
||
showprintlist = NULL;
|
||
setchecklist = NULL;
|
||
showchecklist = NULL;
|
||
}
|
||
|
||
|
||
void
|
||
init_cli_cmds (void)
|
||
{
|
||
struct cmd_list_element *c;
|
||
|
||
/* Define the classes of commands.
|
||
They will appear in the help list in the reverse of this order. */
|
||
|
||
add_cmd ("internals", class_maintenance, NULL,
|
||
"Maintenance commands.\n\
|
||
Some gdb commands are provided just for use by gdb maintainers.\n\
|
||
These commands are subject to frequent change, and may not be as\n\
|
||
well documented as user commands.",
|
||
&cmdlist);
|
||
add_cmd ("obscure", class_obscure, NULL, "Obscure features.", &cmdlist);
|
||
add_cmd ("aliases", class_alias, NULL, "Aliases of other commands.", &cmdlist);
|
||
add_cmd ("user-defined", class_user, NULL, "User-defined commands.\n\
|
||
The commands in this class are those defined by the user.\n\
|
||
Use the \"define\" command to define a command.", &cmdlist);
|
||
add_cmd ("support", class_support, NULL, "Support facilities.", &cmdlist);
|
||
if (!dbx_commands)
|
||
add_cmd ("status", class_info, NULL, "Status inquiries.", &cmdlist);
|
||
add_cmd ("files", class_files, NULL, "Specifying and examining files.", &cmdlist);
|
||
add_cmd ("breakpoints", class_breakpoint, NULL, "Making program stop at certain points.", &cmdlist);
|
||
add_cmd ("data", class_vars, NULL, "Examining data.", &cmdlist);
|
||
add_cmd ("stack", class_stack, NULL, "Examining the stack.\n\
|
||
The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
|
||
counting from zero for the innermost (currently executing) frame.\n\n\
|
||
At any time gdb identifies one frame as the \"selected\" frame.\n\
|
||
Variable lookups are done with respect to the selected frame.\n\
|
||
When the program being debugged stops, gdb selects the innermost frame.\n\
|
||
The commands below can be used to select other frames by number or address.",
|
||
&cmdlist);
|
||
add_cmd ("running", class_run, NULL, "Running the program.", &cmdlist);
|
||
|
||
/* Define general commands. */
|
||
|
||
add_com ("pwd", class_files, pwd_command,
|
||
"Print working directory. This is used for your program as well.");
|
||
c = add_cmd ("cd", class_files, cd_command,
|
||
"Set working directory to DIR for debugger and program being debugged.\n\
|
||
The change does not take effect for the program being debugged\n\
|
||
until the next time it is started.", &cmdlist);
|
||
set_cmd_completer (c, filename_completer);
|
||
|
||
add_com ("echo", class_support, echo_command,
|
||
"Print a constant string. Give string as argument.\n\
|
||
C escape sequences may be used in the argument.\n\
|
||
No newline is added at the end of the argument;\n\
|
||
use \"\\n\" if you want a newline to be printed.\n\
|
||
Since leading and trailing whitespace are ignored in command arguments,\n\
|
||
if you want to print some you must use \"\\\" before leading whitespace\n\
|
||
to be printed or after trailing whitespace.");
|
||
add_com ("document", class_support, document_command,
|
||
"Document a user-defined command.\n\
|
||
Give command name as argument. Give documentation on following lines.\n\
|
||
End with a line of just \"end\".");
|
||
add_com ("define", class_support, define_command,
|
||
"Define a new command name. Command name is argument.\n\
|
||
Definition appears on following lines, one command per line.\n\
|
||
End with a line of just \"end\".\n\
|
||
Use the \"document\" command to give documentation for the new command.\n\
|
||
Commands defined in this way may have up to ten arguments.");
|
||
|
||
c = add_cmd ("source", class_support, source_command,
|
||
"Read commands from a file named FILE.\n\
|
||
Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\
|
||
when gdb is started.", &cmdlist);
|
||
set_cmd_completer (c, filename_completer);
|
||
|
||
add_com ("quit", class_support, quit_command, "Exit gdb.");
|
||
c = add_com ("help", class_support, help_command, "Print list of commands.");
|
||
set_cmd_completer (c, command_completer);
|
||
add_com_alias ("q", "quit", class_support, 1);
|
||
add_com_alias ("h", "help", class_support, 1);
|
||
|
||
c = add_set_cmd ("verbose", class_support, var_boolean, (char *) &info_verbose,
|
||
"Set ",
|
||
&setlist),
|
||
add_show_from_set (c, &showlist);
|
||
set_cmd_sfunc (c, set_verbose);
|
||
set_verbose (NULL, 0, c);
|
||
|
||
add_prefix_cmd ("history", class_support, set_history,
|
||
"Generic command for setting command history parameters.",
|
||
&sethistlist, "set history ", 0, &setlist);
|
||
add_prefix_cmd ("history", class_support, show_history,
|
||
"Generic command for showing command history parameters.",
|
||
&showhistlist, "show history ", 0, &showlist);
|
||
|
||
add_show_from_set
|
||
(add_set_cmd ("expansion", no_class, var_boolean, (char *) &history_expansion_p,
|
||
"Set history expansion on command input.\n\
|
||
Without an argument, history expansion is enabled.", &sethistlist),
|
||
&showhistlist);
|
||
|
||
add_prefix_cmd ("info", class_info, info_command,
|
||
"Generic command for showing things about the program being debugged.",
|
||
&infolist, "info ", 0, &cmdlist);
|
||
add_com_alias ("i", "info", class_info, 1);
|
||
|
||
add_com ("complete", class_obscure, complete_command,
|
||
"List the completions for the rest of the line as a command.");
|
||
|
||
add_prefix_cmd ("show", class_info, show_command,
|
||
"Generic command for showing things about the debugger.",
|
||
&showlist, "show ", 0, &cmdlist);
|
||
/* Another way to get at the same thing. */
|
||
add_info ("set", show_command, "Show all GDB settings.");
|
||
|
||
add_cmd ("commands", no_class, show_commands,
|
||
"Show the history of commands you typed.\n\
|
||
You can supply a command number to start with, or a `+' to start after\n\
|
||
the previous command number shown.",
|
||
&showlist);
|
||
|
||
add_cmd ("version", no_class, show_version,
|
||
"Show what version of GDB this is.", &showlist);
|
||
|
||
add_com ("while", class_support, while_command,
|
||
"Execute nested commands WHILE the conditional expression is non zero.\n\
|
||
The conditional expression must follow the word `while' and must in turn be\n\
|
||
followed by a new line. The nested commands must be entered one per line,\n\
|
||
and should be terminated by the word `end'.");
|
||
|
||
add_com ("if", class_support, if_command,
|
||
"Execute nested commands once IF the conditional expression is non zero.\n\
|
||
The conditional expression must follow the word `if' and must in turn be\n\
|
||
followed by a new line. The nested commands must be entered one per line,\n\
|
||
and should be terminated by the word 'else' or `end'. If an else clause\n\
|
||
is used, the same rules apply to its nested commands as to the first ones.");
|
||
|
||
/* If target is open when baud changes, it doesn't take effect until the
|
||
next open (I think, not sure). */
|
||
add_show_from_set (add_set_cmd ("remotebaud", no_class,
|
||
var_zinteger, (char *) &baud_rate,
|
||
"Set baud rate for remote serial I/O.\n\
|
||
This value is used to set the speed of the serial port when debugging\n\
|
||
using remote targets.", &setlist),
|
||
&showlist);
|
||
|
||
c = add_set_cmd ("remotedebug", no_class, var_zinteger,
|
||
(char *) &remote_debug,
|
||
"Set debugging of remote protocol.\n\
|
||
When enabled, each packet sent or received with the remote target\n\
|
||
is displayed.", &setlist);
|
||
deprecate_cmd (c, "set debug remote");
|
||
deprecate_cmd (add_show_from_set (c, &showlist), "show debug remote");
|
||
|
||
add_show_from_set (add_set_cmd ("remote", no_class, var_zinteger,
|
||
(char *) &remote_debug,
|
||
"Set debugging of remote protocol.\n\
|
||
When enabled, each packet sent or received with the remote target\n\
|
||
is displayed.", &setdebuglist),
|
||
&showdebuglist);
|
||
|
||
add_show_from_set (
|
||
add_set_cmd ("remotetimeout", no_class, var_integer, (char *) &remote_timeout,
|
||
"Set timeout limit to wait for target to respond.\n\
|
||
This value is used to set the time limit for gdb to wait for a response\n\
|
||
from the target.", &setlist),
|
||
&showlist);
|
||
|
||
add_prefix_cmd ("debug", no_class, set_debug,
|
||
"Generic command for setting gdb debugging flags",
|
||
&setdebuglist, "set debug ", 0, &setlist);
|
||
|
||
add_prefix_cmd ("debug", no_class, show_debug,
|
||
"Generic command for showing gdb debugging flags",
|
||
&showdebuglist, "show debug ", 0, &showlist);
|
||
|
||
c = add_com ("shell", class_support, shell_escape,
|
||
"Execute the rest of the line as a shell command.\n\
|
||
With no arguments, run an inferior shell.");
|
||
set_cmd_completer (c, filename_completer);
|
||
|
||
c = add_com ("edit", class_files, edit_command,
|
||
concat ("Edit specified file or function.\n\
|
||
With no argument, edits file containing most recent line listed.\n\
|
||
", "\
|
||
Editing targets can be specified in these ways:\n\
|
||
FILE:LINENUM, to edit at that line in that file,\n\
|
||
FUNCTION, to edit at the beginning of that function,\n\
|
||
FILE:FUNCTION, to distinguish among like-named static functions.\n\
|
||
*ADDRESS, to edit at the line containing that address.\n\
|
||
Uses EDITOR environment variable contents as editor (or ex as default).",NULL));
|
||
|
||
c->completer = location_completer;
|
||
|
||
add_com ("list", class_files, list_command,
|
||
concat ("List specified function or line.\n\
|
||
With no argument, lists ten more lines after or around previous listing.\n\
|
||
\"list -\" lists the ten lines before a previous ten-line listing.\n\
|
||
One argument specifies a line, and ten lines are listed around that line.\n\
|
||
Two arguments with comma between specify starting and ending lines to list.\n\
|
||
", "\
|
||
Lines can be specified in these ways:\n\
|
||
LINENUM, to list around that line in current file,\n\
|
||
FILE:LINENUM, to list around that line in that file,\n\
|
||
FUNCTION, to list around beginning of that function,\n\
|
||
FILE:FUNCTION, to distinguish among like-named static functions.\n\
|
||
*ADDRESS, to list around the line containing that address.\n\
|
||
With two args if one is empty it stands for ten lines away from the other arg.", NULL));
|
||
|
||
if (!xdb_commands)
|
||
add_com_alias ("l", "list", class_files, 1);
|
||
else
|
||
add_com_alias ("v", "list", class_files, 1);
|
||
|
||
if (dbx_commands)
|
||
add_com_alias ("file", "list", class_files, 1);
|
||
|
||
c = add_com ("disassemble", class_vars, disassemble_command,
|
||
"Disassemble a specified section of memory.\n\
|
||
Default is the function surrounding the pc of the selected frame.\n\
|
||
With a single argument, the function surrounding that address is dumped.\n\
|
||
Two arguments are taken as a range of memory to dump.");
|
||
set_cmd_completer (c, location_completer);
|
||
if (xdb_commands)
|
||
add_com_alias ("va", "disassemble", class_xdb, 0);
|
||
|
||
/* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
|
||
be a really useful feature. Unfortunately, the below wont do
|
||
this. Instead it adds support for the form ``(gdb) ! ls''
|
||
(i.e. the space is required). If the ``!'' command below is
|
||
added the complains about no ``!'' command would be replaced by
|
||
complains about how the ``!'' command is broken :-) */
|
||
if (xdb_commands)
|
||
add_com_alias ("!", "shell", class_support, 0);
|
||
|
||
c = add_com ("make", class_support, make_command,
|
||
"Run the ``make'' program using the rest of the line as arguments.");
|
||
set_cmd_completer (c, filename_completer);
|
||
add_cmd ("user", no_class, show_user,
|
||
"Show definitions of user defined commands.\n\
|
||
Argument is the name of the user defined command.\n\
|
||
With no argument, show definitions of all user defined commands.", &showlist);
|
||
add_com ("apropos", class_support, apropos_command, "Search for commands matching a REGEXP");
|
||
|
||
add_show_from_set (
|
||
add_set_cmd ("max-user-call-depth", no_class, var_integer,
|
||
(char *) &max_user_call_depth,
|
||
"Set the max call depth for user-defined commands.\n",
|
||
&setlist),
|
||
&showlist);
|
||
}
|