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/* Top level stuff for GDB, the GNU debugger.
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Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
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1996, 1997, 1998, 1999, 2000, 2001 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 "gdbcmd.h"
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#include "call-cmds.h"
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#include "symtab.h"
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#include "inferior.h"
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#include <signal.h>
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#include "target.h"
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#include "breakpoint.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "value.h"
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#include "language.h"
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#include "terminal.h" /* For job_control. */
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#include "annotate.h"
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#include "completer.h"
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#include "top.h"
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#include "version.h"
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/* readline include files */
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#include <readline/readline.h>
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#include <readline/history.h>
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/* readline defines this. */
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#undef savestring
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#include <sys/types.h>
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#include <setjmp.h>
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#include "event-top.h"
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#include "gdb_string.h"
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#include "gdb_stat.h"
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#include <ctype.h>
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#ifdef UI_OUT
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#include "ui-out.h"
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#include "cli-out.h"
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#endif
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/* From completer.c */
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extern int is_complete_command (void (*func) (char *args, int from_tty));
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/* From cli/cli-cmds.c */
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extern void init_cmd_lists (void);
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extern void init_cli_cmds (void);
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extern void execute_user_command (struct cmd_list_element *c, char *args);
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/* From cli/cli-setshow.c */
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extern void do_setshow_command (char *, int, struct cmd_list_element *);
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/* Exported to CLI cli/cli-cmds.c. */
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void set_verbose (char *, int, struct cmd_list_element *);
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void show_history (char *, int);
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void set_history (char *, int);
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void show_commands (char *, int);
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void do_restore_instream_cleanup (void *stream);
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/* Prototypes for local functions */
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static void dont_repeat_command (char *, int);
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static void init_signals (void);
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#ifdef STOP_SIGNAL
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static void stop_sig (int);
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#endif
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static char *readline_line_completion_function (char *, int);
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static void init_main (void);
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static void float_handler (int);
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static void init_signals (void);
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static void set_history_size_command (char *, int, struct cmd_list_element *);
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static void do_nothing (int);
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#ifdef SIGHUP
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/* NOTE 1999-04-29: This function will be static again, once we modify
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gdb to use the event loop as the default command loop and we merge
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event-top.c into this file, top.c */
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/* static */ int quit_cover (PTR);
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static void disconnect (int);
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#endif
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/* Default command line prompt. This is overriden in some configs. */
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#ifndef DEFAULT_PROMPT
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#define DEFAULT_PROMPT "(gdb) "
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#endif
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/* Initialization file name for gdb. This is overridden in some configs. */
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#ifndef GDBINIT_FILENAME
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#define GDBINIT_FILENAME ".gdbinit"
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#endif
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char gdbinit[] = GDBINIT_FILENAME;
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int inhibit_gdbinit = 0;
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/* If nonzero, and GDB has been configured to be able to use windows,
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attempt to open them upon startup. */
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int use_windows = 1;
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extern char lang_frame_mismatch_warn[]; /* language.c */
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/* Flag for whether we want all the "from_tty" gubbish printed. */
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int caution = 1; /* Default is yes, sigh. */
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/* stdio stream that command input is being read from. Set to stdin normally.
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Set by source_command to the file we are sourcing. Set to NULL if we are
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executing a user-defined command or interacting via a GUI. */
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FILE *instream;
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/* Current working directory. */
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char *current_directory;
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/* The directory name is actually stored here (usually). */
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char gdb_dirbuf[1024];
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/* Function to call before reading a command, if nonzero.
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The function receives two args: an input stream,
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and a prompt string. */
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void (*window_hook) (FILE *, char *);
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int epoch_interface;
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int xgdb_verbose;
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/* gdb prints this when reading a command interactively */
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static char *gdb_prompt_string; /* the global prompt string */
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extern char *get_prompt (void); /* access function for prompt string */
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/* Buffer used for reading command lines, and the size
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allocated for it so far. */
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char *line;
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int linesize = 100;
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/* Nonzero if the current command is modified by "server ". This
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affects things like recording into the command history, commands
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repeating on RETURN, etc. This is so a user interface (emacs, GUI,
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whatever) can issue its own commands and also send along commands
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from the user, and have the user not notice that the user interface
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is issuing commands too. */
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int server_command;
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/* Baud rate specified for talking to serial target systems. Default
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is left as -1, so targets can choose their own defaults. */
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/* FIXME: This means that "show remotebaud" and gr_files_info can print -1
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or (unsigned int)-1. This is a Bad User Interface. */
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int baud_rate = -1;
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/* Timeout limit for response from target. */
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/* The default value has been changed many times over the years. It
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was originally 5 seconds. But that was thought to be a long time
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to sit and wait, so it was changed to 2 seconds. That was thought
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to be plenty unless the connection was going through some terminal
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server or multiplexer or other form of hairy serial connection.
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In mid-1996, remote_timeout was moved from remote.c to top.c and
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it began being used in other remote-* targets. It appears that the
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default was changed to 20 seconds at that time, perhaps because the
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Hitachi E7000 ICE didn't always respond in a timely manner.
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But if 5 seconds is a long time to sit and wait for retransmissions,
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20 seconds is far worse. This demonstrates the difficulty of using
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a single variable for all protocol timeouts.
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As remote.c is used much more than remote-e7000.c, it was changed
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back to 2 seconds in 1999. */
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int remote_timeout = 2;
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/* Non-zero tells remote* modules to output debugging info. */
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int remote_debug = 0;
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/* Non-zero means the target is running. Note: this is different from
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saying that there is an active target and we are stopped at a
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breakpoint, for instance. This is a real indicator whether the
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target is off and running, which gdb is doing something else. */
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int target_executing = 0;
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/* Level of control structure. */
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static int control_level;
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/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
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#ifndef STOP_SIGNAL
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#ifdef SIGTSTP
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#define STOP_SIGNAL SIGTSTP
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static void stop_sig (int);
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#endif
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#endif
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/* Some System V have job control but not sigsetmask(). */
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#if !defined (HAVE_SIGSETMASK)
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#if !defined (USG)
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#define HAVE_SIGSETMASK 1
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#else
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#define HAVE_SIGSETMASK 0
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#endif
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#endif
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#if 0 == (HAVE_SIGSETMASK)
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#define sigsetmask(n)
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#endif
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/* Hooks for alternate command interfaces. */
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/* Called after most modules have been initialized, but before taking users
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command file. */
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void (*init_ui_hook) (char *argv0);
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/* This hook is called from within gdb's many mini-event loops which could
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steal control from a real user interface's event loop. It returns
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non-zero if the user is requesting a detach, zero otherwise. */
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int (*ui_loop_hook) (int);
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/* Called instead of command_loop at top level. Can be invoked via
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return_to_top_level. */
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void (*command_loop_hook) (void);
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/* Called from print_frame_info to list the line we stopped in. */
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void (*print_frame_info_listing_hook) (struct symtab * s, int line,
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int stopline, int noerror);
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/* Replaces most of query. */
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int (*query_hook) (const char *, va_list);
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/* Replaces most of warning. */
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void (*warning_hook) (const char *, va_list);
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/* These three functions support getting lines of text from the user. They
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are used in sequence. First readline_begin_hook is called with a text
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string that might be (for example) a message for the user to type in a
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sequence of commands to be executed at a breakpoint. If this function
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calls back to a GUI, it might take this opportunity to pop up a text
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interaction window with this message. Next, readline_hook is called
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with a prompt that is emitted prior to collecting the user input.
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It can be called multiple times. Finally, readline_end_hook is called
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to notify the GUI that we are done with the interaction window and it
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can close it. */
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void (*readline_begin_hook) (char *, ...);
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char *(*readline_hook) (char *);
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void (*readline_end_hook) (void);
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/* Called as appropriate to notify the interface of the specified breakpoint
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conditions. */
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void (*create_breakpoint_hook) (struct breakpoint * bpt);
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void (*delete_breakpoint_hook) (struct breakpoint * bpt);
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void (*modify_breakpoint_hook) (struct breakpoint * bpt);
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/* Called as appropriate to notify the interface that we have attached
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to or detached from an already running process. */
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void (*attach_hook) (void);
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void (*detach_hook) (void);
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/* Called during long calculations to allow GUI to repair window damage, and to
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check for stop buttons, etc... */
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void (*interactive_hook) (void);
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/* Called when the registers have changed, as a hint to a GUI
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to minimize window update. */
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void (*registers_changed_hook) (void);
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/* Tell the GUI someone changed the register REGNO. -1 means
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that the caller does not know which register changed or
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that several registers have changed (see value_assign). */
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void (*register_changed_hook) (int regno);
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/* Tell the GUI someone changed LEN bytes of memory at ADDR */
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void (*memory_changed_hook) (CORE_ADDR addr, int len);
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/* Called when going to wait for the target. Usually allows the GUI to run
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while waiting for target events. */
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ptid_t (*target_wait_hook) (ptid_t ptid,
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struct target_waitstatus * status);
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/* Used by UI as a wrapper around command execution. May do various things
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like enabling/disabling buttons, etc... */
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void (*call_command_hook) (struct cmd_list_element * c, char *cmd,
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int from_tty);
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/* Called after a `set' command has finished. Is only run if the
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`set' command succeeded. */
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void (*set_hook) (struct cmd_list_element * c);
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/* Called when the current thread changes. Argument is thread id. */
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void (*context_hook) (int id);
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/* Takes control from error (). Typically used to prevent longjmps out of the
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middle of the GUI. Usually used in conjunction with a catch routine. */
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NORETURN void (*error_hook) (void) ATTR_NORETURN;
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/* One should use catch_errors rather than manipulating these
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directly. */
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#if defined(HAVE_SIGSETJMP)
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#define SIGJMP_BUF sigjmp_buf
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#define SIGSETJMP(buf) sigsetjmp(buf, 1)
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#define SIGLONGJMP(buf,val) siglongjmp(buf,val)
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#else
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#define SIGJMP_BUF jmp_buf
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#define SIGSETJMP(buf) setjmp(buf)
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#define SIGLONGJMP(buf,val) longjmp(buf,val)
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#endif
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/* Where to go for return_to_top_level. */
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static SIGJMP_BUF *catch_return;
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/* Return for reason REASON to the nearest containing catch_errors(). */
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|
|
NORETURN void
|
371 |
|
|
return_to_top_level (enum return_reason reason)
|
372 |
|
|
{
|
373 |
|
|
quit_flag = 0;
|
374 |
|
|
immediate_quit = 0;
|
375 |
|
|
|
376 |
|
|
/* Perhaps it would be cleaner to do this via the cleanup chain (not sure
|
377 |
|
|
I can think of a reason why that is vital, though). */
|
378 |
|
|
bpstat_clear_actions (stop_bpstat); /* Clear queued breakpoint commands */
|
379 |
|
|
|
380 |
|
|
disable_current_display ();
|
381 |
|
|
do_cleanups (ALL_CLEANUPS);
|
382 |
|
|
if (event_loop_p && target_can_async_p () && !target_executing)
|
383 |
|
|
do_exec_cleanups (ALL_CLEANUPS);
|
384 |
|
|
if (event_loop_p && sync_execution)
|
385 |
|
|
do_exec_error_cleanups (ALL_CLEANUPS);
|
386 |
|
|
|
387 |
|
|
if (annotation_level > 1)
|
388 |
|
|
switch (reason)
|
389 |
|
|
{
|
390 |
|
|
case RETURN_QUIT:
|
391 |
|
|
annotate_quit ();
|
392 |
|
|
break;
|
393 |
|
|
case RETURN_ERROR:
|
394 |
|
|
annotate_error ();
|
395 |
|
|
break;
|
396 |
|
|
}
|
397 |
|
|
|
398 |
|
|
/* Jump to the containing catch_errors() call, communicating REASON
|
399 |
|
|
to that call via setjmp's return value. Note that REASON can't
|
400 |
|
|
be zero, by definition in defs.h. */
|
401 |
|
|
|
402 |
|
|
(NORETURN void) SIGLONGJMP (*catch_return, (int) reason);
|
403 |
|
|
}
|
404 |
|
|
|
405 |
|
|
/* Call FUNC with arg ARGS, catching any errors. If there is no
|
406 |
|
|
error, return the value returned by FUNC. If there is an error,
|
407 |
|
|
print ERRSTRING, print the specific error message, then return
|
408 |
|
|
zero.
|
409 |
|
|
|
410 |
|
|
Must not be called with immediate_quit in effect (bad things might
|
411 |
|
|
happen, say we got a signal in the middle of a memcpy to quit_return).
|
412 |
|
|
This is an OK restriction; with very few exceptions immediate_quit can
|
413 |
|
|
be replaced by judicious use of QUIT.
|
414 |
|
|
|
415 |
|
|
MASK specifies what to catch; it is normally set to
|
416 |
|
|
RETURN_MASK_ALL, if for no other reason than that the code which
|
417 |
|
|
calls catch_errors might not be set up to deal with a quit which
|
418 |
|
|
isn't caught. But if the code can deal with it, it generally
|
419 |
|
|
should be RETURN_MASK_ERROR, unless for some reason it is more
|
420 |
|
|
useful to abort only the portion of the operation inside the
|
421 |
|
|
catch_errors. Note that quit should return to the command line
|
422 |
|
|
fairly quickly, even if some further processing is being done. */
|
423 |
|
|
|
424 |
|
|
/* MAYBE: cagney/1999-11-05: catch_errors() in conjunction with
|
425 |
|
|
error() et.al. could maintain a set of flags that indicate the the
|
426 |
|
|
current state of each of the longjmp buffers. This would give the
|
427 |
|
|
longjmp code the chance to detect a longjmp botch (before it gets
|
428 |
|
|
to longjmperror()). Prior to 1999-11-05 this wasn't possible as
|
429 |
|
|
code also randomly used a SET_TOP_LEVEL macro that directly
|
430 |
|
|
initialize the longjmp buffers. */
|
431 |
|
|
|
432 |
|
|
/* MAYBE: cagney/1999-11-05: Should the catch_errors and cleanups code
|
433 |
|
|
be consolidated into a single file instead of being distributed
|
434 |
|
|
between utils.c and top.c? */
|
435 |
|
|
|
436 |
|
|
int
|
437 |
|
|
catch_errors (catch_errors_ftype *func, PTR args, char *errstring,
|
438 |
|
|
return_mask mask)
|
439 |
|
|
{
|
440 |
|
|
SIGJMP_BUF *saved_catch;
|
441 |
|
|
SIGJMP_BUF catch;
|
442 |
|
|
int val;
|
443 |
|
|
struct cleanup *saved_cleanup_chain;
|
444 |
|
|
char *saved_error_pre_print;
|
445 |
|
|
char *saved_quit_pre_print;
|
446 |
|
|
|
447 |
|
|
/* Return value from SIGSETJMP(): enum return_reason if error or
|
448 |
|
|
quit caught, 0 otherwise. */
|
449 |
|
|
int caught;
|
450 |
|
|
|
451 |
|
|
/* Override error/quit messages during FUNC. */
|
452 |
|
|
|
453 |
|
|
saved_error_pre_print = error_pre_print;
|
454 |
|
|
saved_quit_pre_print = quit_pre_print;
|
455 |
|
|
|
456 |
|
|
if (mask & RETURN_MASK_ERROR)
|
457 |
|
|
error_pre_print = errstring;
|
458 |
|
|
if (mask & RETURN_MASK_QUIT)
|
459 |
|
|
quit_pre_print = errstring;
|
460 |
|
|
|
461 |
|
|
/* Prevent error/quit during FUNC from calling cleanups established
|
462 |
|
|
prior to here. */
|
463 |
|
|
|
464 |
|
|
saved_cleanup_chain = save_cleanups ();
|
465 |
|
|
|
466 |
|
|
/* Call FUNC, catching error/quit events. */
|
467 |
|
|
|
468 |
|
|
saved_catch = catch_return;
|
469 |
|
|
catch_return = &catch;
|
470 |
|
|
caught = SIGSETJMP (catch);
|
471 |
|
|
if (!caught)
|
472 |
|
|
val = (*func) (args);
|
473 |
|
|
else
|
474 |
|
|
val = 0;
|
475 |
|
|
catch_return = saved_catch;
|
476 |
|
|
|
477 |
|
|
/* FIXME: cagney/1999-11-05: A correct FUNC implementation will
|
478 |
|
|
clean things up (restoring the cleanup chain) to the state they
|
479 |
|
|
were just prior to the call. Unfortunately, many FUNC's are not
|
480 |
|
|
that well behaved. This could be fixed by adding either a
|
481 |
|
|
do_cleanups call (to cover the problem) or an assertion check to
|
482 |
|
|
detect bad FUNCs code. */
|
483 |
|
|
|
484 |
|
|
/* Restore the cleanup chain and error/quit messages to their
|
485 |
|
|
original states. */
|
486 |
|
|
|
487 |
|
|
restore_cleanups (saved_cleanup_chain);
|
488 |
|
|
|
489 |
|
|
if (mask & RETURN_MASK_QUIT)
|
490 |
|
|
quit_pre_print = saved_quit_pre_print;
|
491 |
|
|
if (mask & RETURN_MASK_ERROR)
|
492 |
|
|
error_pre_print = saved_error_pre_print;
|
493 |
|
|
|
494 |
|
|
/* Return normally if no error/quit event occurred. */
|
495 |
|
|
|
496 |
|
|
if (!caught)
|
497 |
|
|
return val;
|
498 |
|
|
|
499 |
|
|
/* If the caller didn't request that the event be caught, relay the
|
500 |
|
|
event to the next containing catch_errors(). */
|
501 |
|
|
|
502 |
|
|
if (!(mask & RETURN_MASK (caught)))
|
503 |
|
|
return_to_top_level (caught);
|
504 |
|
|
|
505 |
|
|
/* Tell the caller that an event was caught.
|
506 |
|
|
|
507 |
|
|
FIXME: nsd/2000-02-22: When MASK is RETURN_MASK_ALL, the caller
|
508 |
|
|
can't tell what type of event occurred.
|
509 |
|
|
|
510 |
|
|
A possible fix is to add a new interface, catch_event(), that
|
511 |
|
|
returns enum return_reason after catching an error or a quit.
|
512 |
|
|
|
513 |
|
|
When returning normally, i.e. without catching an error or a
|
514 |
|
|
quit, catch_event() could return RETURN_NORMAL, which would be
|
515 |
|
|
added to enum return_reason. FUNC would return information
|
516 |
|
|
exclusively via ARGS.
|
517 |
|
|
|
518 |
|
|
Alternatively, normal catch_event() could return FUNC's return
|
519 |
|
|
value. The caller would need to be aware of potential overlap
|
520 |
|
|
with enum return_reason, which could be publicly restricted to
|
521 |
|
|
negative values to simplify return value processing in FUNC and
|
522 |
|
|
in the caller. */
|
523 |
|
|
|
524 |
|
|
return 0;
|
525 |
|
|
}
|
526 |
|
|
|
527 |
|
|
struct captured_command_args
|
528 |
|
|
{
|
529 |
|
|
catch_command_errors_ftype *command;
|
530 |
|
|
char *arg;
|
531 |
|
|
int from_tty;
|
532 |
|
|
};
|
533 |
|
|
|
534 |
|
|
static int
|
535 |
|
|
do_captured_command (void *data)
|
536 |
|
|
{
|
537 |
|
|
struct captured_command_args *context = data;
|
538 |
|
|
context->command (context->arg, context->from_tty);
|
539 |
|
|
/* FIXME: cagney/1999-11-07: Technically this do_cleanups() call
|
540 |
|
|
isn't needed. Instead an assertion check could be made that
|
541 |
|
|
simply confirmed that the called function correctly cleaned up
|
542 |
|
|
after itself. Unfortunately, old code (prior to 1999-11-04) in
|
543 |
|
|
main.c was calling SET_TOP_LEVEL(), calling the command function,
|
544 |
|
|
and then *always* calling do_cleanups(). For the moment we
|
545 |
|
|
remain ``bug compatible'' with that old code.. */
|
546 |
|
|
do_cleanups (ALL_CLEANUPS);
|
547 |
|
|
return 1;
|
548 |
|
|
}
|
549 |
|
|
|
550 |
|
|
int
|
551 |
|
|
catch_command_errors (catch_command_errors_ftype * command,
|
552 |
|
|
char *arg, int from_tty, return_mask mask)
|
553 |
|
|
{
|
554 |
|
|
struct captured_command_args args;
|
555 |
|
|
args.command = command;
|
556 |
|
|
args.arg = arg;
|
557 |
|
|
args.from_tty = from_tty;
|
558 |
|
|
return catch_errors (do_captured_command, &args, "", mask);
|
559 |
|
|
}
|
560 |
|
|
|
561 |
|
|
|
562 |
|
|
/* Handler for SIGHUP. */
|
563 |
|
|
|
564 |
|
|
#ifdef SIGHUP
|
565 |
|
|
static void
|
566 |
|
|
disconnect (int signo)
|
567 |
|
|
{
|
568 |
|
|
catch_errors (quit_cover, NULL,
|
569 |
|
|
"Could not kill the program being debugged", RETURN_MASK_ALL);
|
570 |
|
|
signal (SIGHUP, SIG_DFL);
|
571 |
|
|
kill (getpid (), SIGHUP);
|
572 |
|
|
}
|
573 |
|
|
|
574 |
|
|
/* Just a little helper function for disconnect(). */
|
575 |
|
|
|
576 |
|
|
/* NOTE 1999-04-29: This function will be static again, once we modify
|
577 |
|
|
gdb to use the event loop as the default command loop and we merge
|
578 |
|
|
event-top.c into this file, top.c */
|
579 |
|
|
/* static */ int
|
580 |
|
|
quit_cover (PTR s)
|
581 |
|
|
{
|
582 |
|
|
caution = 0; /* Throw caution to the wind -- we're exiting.
|
583 |
|
|
This prevents asking the user dumb questions. */
|
584 |
|
|
quit_command ((char *) 0, 0);
|
585 |
|
|
return 0;
|
586 |
|
|
}
|
587 |
|
|
#endif /* defined SIGHUP */
|
588 |
|
|
|
589 |
|
|
/* Line number we are currently in in a file which is being sourced. */
|
590 |
|
|
/* NOTE 1999-04-29: This variable will be static again, once we modify
|
591 |
|
|
gdb to use the event loop as the default command loop and we merge
|
592 |
|
|
event-top.c into this file, top.c */
|
593 |
|
|
/* static */ int source_line_number;
|
594 |
|
|
|
595 |
|
|
/* Name of the file we are sourcing. */
|
596 |
|
|
/* NOTE 1999-04-29: This variable will be static again, once we modify
|
597 |
|
|
gdb to use the event loop as the default command loop and we merge
|
598 |
|
|
event-top.c into this file, top.c */
|
599 |
|
|
/* static */ char *source_file_name;
|
600 |
|
|
|
601 |
|
|
/* Buffer containing the error_pre_print used by the source stuff.
|
602 |
|
|
Malloc'd. */
|
603 |
|
|
/* NOTE 1999-04-29: This variable will be static again, once we modify
|
604 |
|
|
gdb to use the event loop as the default command loop and we merge
|
605 |
|
|
event-top.c into this file, top.c */
|
606 |
|
|
/* static */ char *source_error;
|
607 |
|
|
static int source_error_allocated;
|
608 |
|
|
|
609 |
|
|
/* Something to glom on to the start of error_pre_print if source_file_name
|
610 |
|
|
is set. */
|
611 |
|
|
/* NOTE 1999-04-29: This variable will be static again, once we modify
|
612 |
|
|
gdb to use the event loop as the default command loop and we merge
|
613 |
|
|
event-top.c into this file, top.c */
|
614 |
|
|
/* static */ char *source_pre_error;
|
615 |
|
|
|
616 |
|
|
/* Clean up on error during a "source" command (or execution of a
|
617 |
|
|
user-defined command). */
|
618 |
|
|
|
619 |
|
|
void
|
620 |
|
|
do_restore_instream_cleanup (void *stream)
|
621 |
|
|
{
|
622 |
|
|
/* Restore the previous input stream. */
|
623 |
|
|
instream = stream;
|
624 |
|
|
}
|
625 |
|
|
|
626 |
|
|
/* Read commands from STREAM. */
|
627 |
|
|
void
|
628 |
|
|
read_command_file (FILE *stream)
|
629 |
|
|
{
|
630 |
|
|
struct cleanup *cleanups;
|
631 |
|
|
|
632 |
|
|
cleanups = make_cleanup (do_restore_instream_cleanup, instream);
|
633 |
|
|
instream = stream;
|
634 |
|
|
command_loop ();
|
635 |
|
|
do_cleanups (cleanups);
|
636 |
|
|
}
|
637 |
|
|
|
638 |
|
|
extern void init_proc (void);
|
639 |
|
|
|
640 |
|
|
void (*pre_init_ui_hook) (void);
|
641 |
|
|
|
642 |
|
|
#ifdef __MSDOS__
|
643 |
|
|
void
|
644 |
|
|
do_chdir_cleanup (void *old_dir)
|
645 |
|
|
{
|
646 |
|
|
chdir (old_dir);
|
647 |
|
|
xfree (old_dir);
|
648 |
|
|
}
|
649 |
|
|
#endif
|
650 |
|
|
|
651 |
|
|
void
|
652 |
|
|
gdb_init (char *argv0)
|
653 |
|
|
{
|
654 |
|
|
if (pre_init_ui_hook)
|
655 |
|
|
pre_init_ui_hook ();
|
656 |
|
|
|
657 |
|
|
/* Run the init function of each source file */
|
658 |
|
|
|
659 |
|
|
getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
|
660 |
|
|
current_directory = gdb_dirbuf;
|
661 |
|
|
|
662 |
|
|
#ifdef __MSDOS__
|
663 |
|
|
/* Make sure we return to the original directory upon exit, come
|
664 |
|
|
what may, since the OS doesn't do that for us. */
|
665 |
|
|
make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory));
|
666 |
|
|
#endif
|
667 |
|
|
|
668 |
|
|
init_cmd_lists (); /* This needs to be done first */
|
669 |
|
|
initialize_targets (); /* Setup target_terminal macros for utils.c */
|
670 |
|
|
initialize_utils (); /* Make errors and warnings possible */
|
671 |
|
|
initialize_all_files ();
|
672 |
|
|
initialize_current_architecture ();
|
673 |
|
|
init_cli_cmds();
|
674 |
|
|
init_main (); /* But that omits this file! Do it now */
|
675 |
|
|
|
676 |
|
|
/* The signal handling mechanism is different depending whether or
|
677 |
|
|
not the async version is run. NOTE: in the future we plan to make
|
678 |
|
|
the event loop be the default engine of gdb, and this difference
|
679 |
|
|
will disappear. */
|
680 |
|
|
if (event_loop_p)
|
681 |
|
|
async_init_signals ();
|
682 |
|
|
else
|
683 |
|
|
init_signals ();
|
684 |
|
|
|
685 |
|
|
/* We need a default language for parsing expressions, so simple things like
|
686 |
|
|
"set width 0" won't fail if no language is explicitly set in a config file
|
687 |
|
|
or implicitly set by reading an executable during startup. */
|
688 |
|
|
set_language (language_c);
|
689 |
|
|
expected_language = current_language; /* don't warn about the change. */
|
690 |
|
|
|
691 |
|
|
#ifdef UI_OUT
|
692 |
|
|
/* Install the default UI */
|
693 |
|
|
if (!init_ui_hook)
|
694 |
|
|
{
|
695 |
|
|
uiout = cli_out_new (gdb_stdout);
|
696 |
|
|
|
697 |
|
|
/* All the interpreters should have had a look at things by now.
|
698 |
|
|
Initialize the selected interpreter. */
|
699 |
|
|
if (interpreter_p)
|
700 |
|
|
{
|
701 |
|
|
fprintf_unfiltered (gdb_stderr, "Interpreter `%s' unrecognized.\n",
|
702 |
|
|
interpreter_p);
|
703 |
|
|
exit (1);
|
704 |
|
|
}
|
705 |
|
|
}
|
706 |
|
|
#endif
|
707 |
|
|
|
708 |
|
|
if (init_ui_hook)
|
709 |
|
|
init_ui_hook (argv0);
|
710 |
|
|
}
|
711 |
|
|
|
712 |
|
|
/* Execute the line P as a command.
|
713 |
|
|
Pass FROM_TTY as second argument to the defining function. */
|
714 |
|
|
|
715 |
|
|
void
|
716 |
|
|
execute_command (char *p, int from_tty)
|
717 |
|
|
{
|
718 |
|
|
register struct cmd_list_element *c;
|
719 |
|
|
register enum language flang;
|
720 |
|
|
static int warned = 0;
|
721 |
|
|
char *line;
|
722 |
|
|
/* FIXME: These should really be in an appropriate header file */
|
723 |
|
|
extern void serial_log_command (const char *);
|
724 |
|
|
|
725 |
|
|
free_all_values ();
|
726 |
|
|
|
727 |
|
|
/* Force cleanup of any alloca areas if using C alloca instead of
|
728 |
|
|
a builtin alloca. */
|
729 |
|
|
alloca (0);
|
730 |
|
|
|
731 |
|
|
/* This can happen when command_line_input hits end of file. */
|
732 |
|
|
if (p == NULL)
|
733 |
|
|
return;
|
734 |
|
|
|
735 |
|
|
serial_log_command (p);
|
736 |
|
|
|
737 |
|
|
while (*p == ' ' || *p == '\t')
|
738 |
|
|
p++;
|
739 |
|
|
if (*p)
|
740 |
|
|
{
|
741 |
|
|
char *arg;
|
742 |
|
|
line = p;
|
743 |
|
|
|
744 |
|
|
c = lookup_cmd (&p, cmdlist, "", 0, 1);
|
745 |
|
|
|
746 |
|
|
/* If the target is running, we allow only a limited set of
|
747 |
|
|
commands. */
|
748 |
|
|
if (event_loop_p && target_can_async_p () && target_executing)
|
749 |
|
|
if (!strcmp (c->name, "help")
|
750 |
|
|
&& !strcmp (c->name, "pwd")
|
751 |
|
|
&& !strcmp (c->name, "show")
|
752 |
|
|
&& !strcmp (c->name, "stop"))
|
753 |
|
|
error ("Cannot execute this command while the target is running.");
|
754 |
|
|
|
755 |
|
|
/* Pass null arg rather than an empty one. */
|
756 |
|
|
arg = *p ? p : 0;
|
757 |
|
|
|
758 |
|
|
/* Clear off trailing whitespace, except for set and complete command. */
|
759 |
|
|
if (arg
|
760 |
|
|
&& c->type != set_cmd
|
761 |
|
|
&& !is_complete_command (c->function.cfunc))
|
762 |
|
|
{
|
763 |
|
|
p = arg + strlen (arg) - 1;
|
764 |
|
|
while (p >= arg && (*p == ' ' || *p == '\t'))
|
765 |
|
|
p--;
|
766 |
|
|
*(p + 1) = '\0';
|
767 |
|
|
}
|
768 |
|
|
|
769 |
|
|
/* If this command has been pre-hooked, run the hook first. */
|
770 |
|
|
if ((c->hook_pre) && (!c->hook_in))
|
771 |
|
|
{
|
772 |
|
|
c->hook_in = 1; /* Prevent recursive hooking */
|
773 |
|
|
execute_user_command (c->hook_pre, (char *) 0);
|
774 |
|
|
c->hook_in = 0; /* Allow hook to work again once it is complete */
|
775 |
|
|
}
|
776 |
|
|
|
777 |
|
|
if (c->flags & DEPRECATED_WARN_USER)
|
778 |
|
|
deprecated_cmd_warning (&line);
|
779 |
|
|
|
780 |
|
|
if (c->class == class_user)
|
781 |
|
|
execute_user_command (c, arg);
|
782 |
|
|
else if (c->type == set_cmd || c->type == show_cmd)
|
783 |
|
|
do_setshow_command (arg, from_tty & caution, c);
|
784 |
|
|
else if (c->function.cfunc == NO_FUNCTION)
|
785 |
|
|
error ("That is not a command, just a help topic.");
|
786 |
|
|
else if (call_command_hook)
|
787 |
|
|
call_command_hook (c, arg, from_tty & caution);
|
788 |
|
|
else
|
789 |
|
|
(*c->function.cfunc) (arg, from_tty & caution);
|
790 |
|
|
|
791 |
|
|
/* If this command has been post-hooked, run the hook last. */
|
792 |
|
|
if ((c->hook_post) && (!c->hook_in))
|
793 |
|
|
{
|
794 |
|
|
c->hook_in = 1; /* Prevent recursive hooking */
|
795 |
|
|
execute_user_command (c->hook_post, (char *) 0);
|
796 |
|
|
c->hook_in = 0; /* allow hook to work again once it is complete */
|
797 |
|
|
}
|
798 |
|
|
|
799 |
|
|
}
|
800 |
|
|
|
801 |
|
|
/* Tell the user if the language has changed (except first time). */
|
802 |
|
|
if (current_language != expected_language)
|
803 |
|
|
{
|
804 |
|
|
if (language_mode == language_mode_auto)
|
805 |
|
|
{
|
806 |
|
|
language_info (1); /* Print what changed. */
|
807 |
|
|
}
|
808 |
|
|
warned = 0;
|
809 |
|
|
}
|
810 |
|
|
|
811 |
|
|
/* Warn the user if the working language does not match the
|
812 |
|
|
language of the current frame. Only warn the user if we are
|
813 |
|
|
actually running the program, i.e. there is a stack. */
|
814 |
|
|
/* FIXME: This should be cacheing the frame and only running when
|
815 |
|
|
the frame changes. */
|
816 |
|
|
|
817 |
|
|
if (target_has_stack)
|
818 |
|
|
{
|
819 |
|
|
flang = get_frame_language ();
|
820 |
|
|
if (!warned
|
821 |
|
|
&& flang != language_unknown
|
822 |
|
|
&& flang != current_language->la_language)
|
823 |
|
|
{
|
824 |
|
|
printf_filtered ("%s\n", lang_frame_mismatch_warn);
|
825 |
|
|
warned = 1;
|
826 |
|
|
}
|
827 |
|
|
}
|
828 |
|
|
}
|
829 |
|
|
|
830 |
|
|
/* Read commands from `instream' and execute them
|
831 |
|
|
until end of file or error reading instream. */
|
832 |
|
|
|
833 |
|
|
void
|
834 |
|
|
command_loop (void)
|
835 |
|
|
{
|
836 |
|
|
struct cleanup *old_chain;
|
837 |
|
|
char *command;
|
838 |
|
|
int stdin_is_tty = ISATTY (stdin);
|
839 |
|
|
long time_at_cmd_start;
|
840 |
|
|
#ifdef HAVE_SBRK
|
841 |
|
|
long space_at_cmd_start = 0;
|
842 |
|
|
#endif
|
843 |
|
|
extern int display_time;
|
844 |
|
|
extern int display_space;
|
845 |
|
|
|
846 |
|
|
while (instream && !feof (instream))
|
847 |
|
|
{
|
848 |
|
|
#if defined(TUI)
|
849 |
|
|
extern int insert_mode;
|
850 |
|
|
#endif
|
851 |
|
|
if (window_hook && instream == stdin)
|
852 |
|
|
(*window_hook) (instream, get_prompt ());
|
853 |
|
|
|
854 |
|
|
quit_flag = 0;
|
855 |
|
|
if (instream == stdin && stdin_is_tty)
|
856 |
|
|
reinitialize_more_filter ();
|
857 |
|
|
old_chain = make_cleanup (null_cleanup, 0);
|
858 |
|
|
|
859 |
|
|
#if defined(TUI)
|
860 |
|
|
/* A bit of paranoia: I want to make sure the "insert_mode" global
|
861 |
|
|
* is clear except when it is being used for command-line editing
|
862 |
|
|
* (see tuiIO.c, utils.c); otherwise normal output will
|
863 |
|
|
* get messed up in the TUI. So clear it before/after
|
864 |
|
|
* the command-line-input call. - RT
|
865 |
|
|
*/
|
866 |
|
|
insert_mode = 0;
|
867 |
|
|
#endif
|
868 |
|
|
/* Get a command-line. This calls the readline package. */
|
869 |
|
|
command = command_line_input (instream == stdin ?
|
870 |
|
|
get_prompt () : (char *) NULL,
|
871 |
|
|
instream == stdin, "prompt");
|
872 |
|
|
#if defined(TUI)
|
873 |
|
|
insert_mode = 0;
|
874 |
|
|
#endif
|
875 |
|
|
if (command == 0)
|
876 |
|
|
return;
|
877 |
|
|
|
878 |
|
|
time_at_cmd_start = get_run_time ();
|
879 |
|
|
|
880 |
|
|
if (display_space)
|
881 |
|
|
{
|
882 |
|
|
#ifdef HAVE_SBRK
|
883 |
|
|
extern char **environ;
|
884 |
|
|
char *lim = (char *) sbrk (0);
|
885 |
|
|
|
886 |
|
|
space_at_cmd_start = (long) (lim - (char *) &environ);
|
887 |
|
|
#endif
|
888 |
|
|
}
|
889 |
|
|
|
890 |
|
|
execute_command (command, instream == stdin);
|
891 |
|
|
/* Do any commands attached to breakpoint we stopped at. */
|
892 |
|
|
bpstat_do_actions (&stop_bpstat);
|
893 |
|
|
do_cleanups (old_chain);
|
894 |
|
|
|
895 |
|
|
if (display_time)
|
896 |
|
|
{
|
897 |
|
|
long cmd_time = get_run_time () - time_at_cmd_start;
|
898 |
|
|
|
899 |
|
|
printf_unfiltered ("Command execution time: %ld.%06ld\n",
|
900 |
|
|
cmd_time / 1000000, cmd_time % 1000000);
|
901 |
|
|
}
|
902 |
|
|
|
903 |
|
|
if (display_space)
|
904 |
|
|
{
|
905 |
|
|
#ifdef HAVE_SBRK
|
906 |
|
|
extern char **environ;
|
907 |
|
|
char *lim = (char *) sbrk (0);
|
908 |
|
|
long space_now = lim - (char *) &environ;
|
909 |
|
|
long space_diff = space_now - space_at_cmd_start;
|
910 |
|
|
|
911 |
|
|
printf_unfiltered ("Space used: %ld (%c%ld for this command)\n",
|
912 |
|
|
space_now,
|
913 |
|
|
(space_diff >= 0 ? '+' : '-'),
|
914 |
|
|
space_diff);
|
915 |
|
|
#endif
|
916 |
|
|
}
|
917 |
|
|
}
|
918 |
|
|
}
|
919 |
|
|
|
920 |
|
|
/* Read commands from `instream' and execute them until end of file or
|
921 |
|
|
error reading instream. This command loop doesnt care about any
|
922 |
|
|
such things as displaying time and space usage. If the user asks
|
923 |
|
|
for those, they won't work. */
|
924 |
|
|
void
|
925 |
|
|
simplified_command_loop (char *(*read_input_func) (char *),
|
926 |
|
|
void (*execute_command_func) (char *, int))
|
927 |
|
|
{
|
928 |
|
|
struct cleanup *old_chain;
|
929 |
|
|
char *command;
|
930 |
|
|
int stdin_is_tty = ISATTY (stdin);
|
931 |
|
|
|
932 |
|
|
while (instream && !feof (instream))
|
933 |
|
|
{
|
934 |
|
|
quit_flag = 0;
|
935 |
|
|
if (instream == stdin && stdin_is_tty)
|
936 |
|
|
reinitialize_more_filter ();
|
937 |
|
|
old_chain = make_cleanup (null_cleanup, 0);
|
938 |
|
|
|
939 |
|
|
/* Get a command-line. */
|
940 |
|
|
command = (*read_input_func) (instream == stdin ?
|
941 |
|
|
get_prompt () : (char *) NULL);
|
942 |
|
|
|
943 |
|
|
if (command == 0)
|
944 |
|
|
return;
|
945 |
|
|
|
946 |
|
|
(*execute_command_func) (command, instream == stdin);
|
947 |
|
|
|
948 |
|
|
/* Do any commands attached to breakpoint we stopped at. */
|
949 |
|
|
bpstat_do_actions (&stop_bpstat);
|
950 |
|
|
|
951 |
|
|
do_cleanups (old_chain);
|
952 |
|
|
}
|
953 |
|
|
}
|
954 |
|
|
|
955 |
|
|
/* Commands call this if they do not want to be repeated by null lines. */
|
956 |
|
|
|
957 |
|
|
void
|
958 |
|
|
dont_repeat (void)
|
959 |
|
|
{
|
960 |
|
|
if (server_command)
|
961 |
|
|
return;
|
962 |
|
|
|
963 |
|
|
/* If we aren't reading from standard input, we are saving the last
|
964 |
|
|
thing read from stdin in line and don't want to delete it. Null lines
|
965 |
|
|
won't repeat here in any case. */
|
966 |
|
|
if (instream == stdin)
|
967 |
|
|
*line = 0;
|
968 |
|
|
}
|
969 |
|
|
|
970 |
|
|
/* Read a line from the stream "instream" without command line editing.
|
971 |
|
|
|
972 |
|
|
It prints PROMPT_ARG once at the start.
|
973 |
|
|
Action is compatible with "readline", e.g. space for the result is
|
974 |
|
|
malloc'd and should be freed by the caller.
|
975 |
|
|
|
976 |
|
|
A NULL return means end of file. */
|
977 |
|
|
char *
|
978 |
|
|
gdb_readline (char *prompt_arg)
|
979 |
|
|
{
|
980 |
|
|
int c;
|
981 |
|
|
char *result;
|
982 |
|
|
int input_index = 0;
|
983 |
|
|
int result_size = 80;
|
984 |
|
|
|
985 |
|
|
if (prompt_arg)
|
986 |
|
|
{
|
987 |
|
|
/* Don't use a _filtered function here. It causes the assumed
|
988 |
|
|
character position to be off, since the newline we read from
|
989 |
|
|
the user is not accounted for. */
|
990 |
|
|
fputs_unfiltered (prompt_arg, gdb_stdout);
|
991 |
|
|
/* OBSOLETE #ifdef MPW */
|
992 |
|
|
/* OBSOLETE Move to a new line so the entered line doesn't have a prompt */
|
993 |
|
|
/* OBSOLETE on the front of it. */
|
994 |
|
|
/* OBSOLETE fputs_unfiltered ("\n", gdb_stdout); */
|
995 |
|
|
/* OBSOLETE #endif *//* MPW */
|
996 |
|
|
gdb_flush (gdb_stdout);
|
997 |
|
|
}
|
998 |
|
|
|
999 |
|
|
result = (char *) xmalloc (result_size);
|
1000 |
|
|
|
1001 |
|
|
while (1)
|
1002 |
|
|
{
|
1003 |
|
|
/* Read from stdin if we are executing a user defined command.
|
1004 |
|
|
This is the right thing for prompt_for_continue, at least. */
|
1005 |
|
|
c = fgetc (instream ? instream : stdin);
|
1006 |
|
|
|
1007 |
|
|
if (c == EOF)
|
1008 |
|
|
{
|
1009 |
|
|
if (input_index > 0)
|
1010 |
|
|
/* The last line does not end with a newline. Return it, and
|
1011 |
|
|
if we are called again fgetc will still return EOF and
|
1012 |
|
|
we'll return NULL then. */
|
1013 |
|
|
break;
|
1014 |
|
|
xfree (result);
|
1015 |
|
|
return NULL;
|
1016 |
|
|
}
|
1017 |
|
|
|
1018 |
|
|
if (c == '\n')
|
1019 |
|
|
#ifndef CRLF_SOURCE_FILES
|
1020 |
|
|
break;
|
1021 |
|
|
#else
|
1022 |
|
|
{
|
1023 |
|
|
if (input_index > 0 && result[input_index - 1] == '\r')
|
1024 |
|
|
input_index--;
|
1025 |
|
|
break;
|
1026 |
|
|
}
|
1027 |
|
|
#endif
|
1028 |
|
|
|
1029 |
|
|
result[input_index++] = c;
|
1030 |
|
|
while (input_index >= result_size)
|
1031 |
|
|
{
|
1032 |
|
|
result_size *= 2;
|
1033 |
|
|
result = (char *) xrealloc (result, result_size);
|
1034 |
|
|
}
|
1035 |
|
|
}
|
1036 |
|
|
|
1037 |
|
|
result[input_index++] = '\0';
|
1038 |
|
|
return result;
|
1039 |
|
|
}
|
1040 |
|
|
|
1041 |
|
|
/* Variables which control command line editing and history
|
1042 |
|
|
substitution. These variables are given default values at the end
|
1043 |
|
|
of this file. */
|
1044 |
|
|
static int command_editing_p;
|
1045 |
|
|
/* NOTE 1999-04-29: This variable will be static again, once we modify
|
1046 |
|
|
gdb to use the event loop as the default command loop and we merge
|
1047 |
|
|
event-top.c into this file, top.c */
|
1048 |
|
|
/* static */ int history_expansion_p;
|
1049 |
|
|
static int write_history_p;
|
1050 |
|
|
static int history_size;
|
1051 |
|
|
static char *history_filename;
|
1052 |
|
|
|
1053 |
|
|
/* Functions that are used as part of the fancy command line editing. */
|
1054 |
|
|
|
1055 |
|
|
/* This can be used for functions which don't want to complete on symbols
|
1056 |
|
|
but don't want to complete on anything else either. */
|
1057 |
|
|
/* ARGSUSED */
|
1058 |
|
|
char **
|
1059 |
|
|
noop_completer (char *text, char *prefix)
|
1060 |
|
|
{
|
1061 |
|
|
return NULL;
|
1062 |
|
|
}
|
1063 |
|
|
|
1064 |
|
|
/* Line completion interface function for readline. */
|
1065 |
|
|
|
1066 |
|
|
static char *
|
1067 |
|
|
readline_line_completion_function (char *text, int matches)
|
1068 |
|
|
{
|
1069 |
|
|
return line_completion_function (text, matches, rl_line_buffer, rl_point);
|
1070 |
|
|
}
|
1071 |
|
|
|
1072 |
|
|
#ifdef STOP_SIGNAL
|
1073 |
|
|
static void
|
1074 |
|
|
stop_sig (int signo)
|
1075 |
|
|
{
|
1076 |
|
|
#if STOP_SIGNAL == SIGTSTP
|
1077 |
|
|
signal (SIGTSTP, SIG_DFL);
|
1078 |
|
|
sigsetmask (0);
|
1079 |
|
|
kill (getpid (), SIGTSTP);
|
1080 |
|
|
signal (SIGTSTP, stop_sig);
|
1081 |
|
|
#else
|
1082 |
|
|
signal (STOP_SIGNAL, stop_sig);
|
1083 |
|
|
#endif
|
1084 |
|
|
printf_unfiltered ("%s", get_prompt ());
|
1085 |
|
|
gdb_flush (gdb_stdout);
|
1086 |
|
|
|
1087 |
|
|
/* Forget about any previous command -- null line now will do nothing. */
|
1088 |
|
|
dont_repeat ();
|
1089 |
|
|
}
|
1090 |
|
|
#endif /* STOP_SIGNAL */
|
1091 |
|
|
|
1092 |
|
|
/* Initialize signal handlers. */
|
1093 |
|
|
static void
|
1094 |
|
|
do_nothing (int signo)
|
1095 |
|
|
{
|
1096 |
|
|
/* Under System V the default disposition of a signal is reinstated after
|
1097 |
|
|
the signal is caught and delivered to an application process. On such
|
1098 |
|
|
systems one must restore the replacement signal handler if one wishes
|
1099 |
|
|
to continue handling the signal in one's program. On BSD systems this
|
1100 |
|
|
is not needed but it is harmless, and it simplifies the code to just do
|
1101 |
|
|
it unconditionally. */
|
1102 |
|
|
signal (signo, do_nothing);
|
1103 |
|
|
}
|
1104 |
|
|
|
1105 |
|
|
static void
|
1106 |
|
|
init_signals (void)
|
1107 |
|
|
{
|
1108 |
|
|
signal (SIGINT, request_quit);
|
1109 |
|
|
|
1110 |
|
|
/* If SIGTRAP was set to SIG_IGN, then the SIG_IGN will get passed
|
1111 |
|
|
to the inferior and breakpoints will be ignored. */
|
1112 |
|
|
#ifdef SIGTRAP
|
1113 |
|
|
signal (SIGTRAP, SIG_DFL);
|
1114 |
|
|
#endif
|
1115 |
|
|
|
1116 |
|
|
/* If we initialize SIGQUIT to SIG_IGN, then the SIG_IGN will get
|
1117 |
|
|
passed to the inferior, which we don't want. It would be
|
1118 |
|
|
possible to do a "signal (SIGQUIT, SIG_DFL)" after we fork, but
|
1119 |
|
|
on BSD4.3 systems using vfork, that can affect the
|
1120 |
|
|
GDB process as well as the inferior (the signal handling tables
|
1121 |
|
|
might be in memory, shared between the two). Since we establish
|
1122 |
|
|
a handler for SIGQUIT, when we call exec it will set the signal
|
1123 |
|
|
to SIG_DFL for us. */
|
1124 |
|
|
signal (SIGQUIT, do_nothing);
|
1125 |
|
|
#ifdef SIGHUP
|
1126 |
|
|
if (signal (SIGHUP, do_nothing) != SIG_IGN)
|
1127 |
|
|
signal (SIGHUP, disconnect);
|
1128 |
|
|
#endif
|
1129 |
|
|
signal (SIGFPE, float_handler);
|
1130 |
|
|
|
1131 |
|
|
#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
|
1132 |
|
|
signal (SIGWINCH, SIGWINCH_HANDLER);
|
1133 |
|
|
#endif
|
1134 |
|
|
}
|
1135 |
|
|
|
1136 |
|
|
/* Read one line from the command input stream `instream'
|
1137 |
|
|
into the local static buffer `linebuffer' (whose current length
|
1138 |
|
|
is `linelength').
|
1139 |
|
|
The buffer is made bigger as necessary.
|
1140 |
|
|
Returns the address of the start of the line.
|
1141 |
|
|
|
1142 |
|
|
NULL is returned for end of file.
|
1143 |
|
|
|
1144 |
|
|
*If* the instream == stdin & stdin is a terminal, the line read
|
1145 |
|
|
is copied into the file line saver (global var char *line,
|
1146 |
|
|
length linesize) so that it can be duplicated.
|
1147 |
|
|
|
1148 |
|
|
This routine either uses fancy command line editing or
|
1149 |
|
|
simple input as the user has requested. */
|
1150 |
|
|
|
1151 |
|
|
char *
|
1152 |
|
|
command_line_input (char *prompt_arg, int repeat, char *annotation_suffix)
|
1153 |
|
|
{
|
1154 |
|
|
static char *linebuffer = 0;
|
1155 |
|
|
static unsigned linelength = 0;
|
1156 |
|
|
register char *p;
|
1157 |
|
|
char *p1;
|
1158 |
|
|
char *rl;
|
1159 |
|
|
char *local_prompt = prompt_arg;
|
1160 |
|
|
char *nline;
|
1161 |
|
|
char got_eof = 0;
|
1162 |
|
|
|
1163 |
|
|
/* The annotation suffix must be non-NULL. */
|
1164 |
|
|
if (annotation_suffix == NULL)
|
1165 |
|
|
annotation_suffix = "";
|
1166 |
|
|
|
1167 |
|
|
if (annotation_level > 1 && instream == stdin)
|
1168 |
|
|
{
|
1169 |
|
|
local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg))
|
1170 |
|
|
+ strlen (annotation_suffix) + 40);
|
1171 |
|
|
if (prompt_arg == NULL)
|
1172 |
|
|
local_prompt[0] = '\0';
|
1173 |
|
|
else
|
1174 |
|
|
strcpy (local_prompt, prompt_arg);
|
1175 |
|
|
strcat (local_prompt, "\n\032\032");
|
1176 |
|
|
strcat (local_prompt, annotation_suffix);
|
1177 |
|
|
strcat (local_prompt, "\n");
|
1178 |
|
|
}
|
1179 |
|
|
|
1180 |
|
|
if (linebuffer == 0)
|
1181 |
|
|
{
|
1182 |
|
|
linelength = 80;
|
1183 |
|
|
linebuffer = (char *) xmalloc (linelength);
|
1184 |
|
|
}
|
1185 |
|
|
|
1186 |
|
|
p = linebuffer;
|
1187 |
|
|
|
1188 |
|
|
/* Control-C quits instantly if typed while in this loop
|
1189 |
|
|
since it should not wait until the user types a newline. */
|
1190 |
|
|
immediate_quit++;
|
1191 |
|
|
#ifdef STOP_SIGNAL
|
1192 |
|
|
if (job_control)
|
1193 |
|
|
{
|
1194 |
|
|
if (event_loop_p)
|
1195 |
|
|
signal (STOP_SIGNAL, handle_stop_sig);
|
1196 |
|
|
else
|
1197 |
|
|
signal (STOP_SIGNAL, stop_sig);
|
1198 |
|
|
}
|
1199 |
|
|
#endif
|
1200 |
|
|
|
1201 |
|
|
while (1)
|
1202 |
|
|
{
|
1203 |
|
|
/* Make sure that all output has been output. Some machines may let
|
1204 |
|
|
you get away with leaving out some of the gdb_flush, but not all. */
|
1205 |
|
|
wrap_here ("");
|
1206 |
|
|
gdb_flush (gdb_stdout);
|
1207 |
|
|
gdb_flush (gdb_stderr);
|
1208 |
|
|
|
1209 |
|
|
if (source_file_name != NULL)
|
1210 |
|
|
{
|
1211 |
|
|
++source_line_number;
|
1212 |
|
|
sprintf (source_error,
|
1213 |
|
|
"%s%s:%d: Error in sourced command file:\n",
|
1214 |
|
|
source_pre_error,
|
1215 |
|
|
source_file_name,
|
1216 |
|
|
source_line_number);
|
1217 |
|
|
error_pre_print = source_error;
|
1218 |
|
|
}
|
1219 |
|
|
|
1220 |
|
|
if (annotation_level > 1 && instream == stdin)
|
1221 |
|
|
{
|
1222 |
|
|
printf_unfiltered ("\n\032\032pre-");
|
1223 |
|
|
printf_unfiltered (annotation_suffix);
|
1224 |
|
|
printf_unfiltered ("\n");
|
1225 |
|
|
}
|
1226 |
|
|
|
1227 |
|
|
/* Don't use fancy stuff if not talking to stdin. */
|
1228 |
|
|
if (readline_hook && instream == NULL)
|
1229 |
|
|
{
|
1230 |
|
|
rl = (*readline_hook) (local_prompt);
|
1231 |
|
|
}
|
1232 |
|
|
else if (command_editing_p && instream == stdin && ISATTY (instream))
|
1233 |
|
|
{
|
1234 |
|
|
rl = readline (local_prompt);
|
1235 |
|
|
}
|
1236 |
|
|
else
|
1237 |
|
|
{
|
1238 |
|
|
rl = gdb_readline (local_prompt);
|
1239 |
|
|
}
|
1240 |
|
|
|
1241 |
|
|
if (annotation_level > 1 && instream == stdin)
|
1242 |
|
|
{
|
1243 |
|
|
printf_unfiltered ("\n\032\032post-");
|
1244 |
|
|
printf_unfiltered (annotation_suffix);
|
1245 |
|
|
printf_unfiltered ("\n");
|
1246 |
|
|
}
|
1247 |
|
|
|
1248 |
|
|
if (!rl || rl == (char *) EOF)
|
1249 |
|
|
{
|
1250 |
|
|
got_eof = 1;
|
1251 |
|
|
break;
|
1252 |
|
|
}
|
1253 |
|
|
if (strlen (rl) + 1 + (p - linebuffer) > linelength)
|
1254 |
|
|
{
|
1255 |
|
|
linelength = strlen (rl) + 1 + (p - linebuffer);
|
1256 |
|
|
nline = (char *) xrealloc (linebuffer, linelength);
|
1257 |
|
|
p += nline - linebuffer;
|
1258 |
|
|
linebuffer = nline;
|
1259 |
|
|
}
|
1260 |
|
|
p1 = rl;
|
1261 |
|
|
/* Copy line. Don't copy null at end. (Leaves line alone
|
1262 |
|
|
if this was just a newline) */
|
1263 |
|
|
while (*p1)
|
1264 |
|
|
*p++ = *p1++;
|
1265 |
|
|
|
1266 |
|
|
xfree (rl); /* Allocated in readline. */
|
1267 |
|
|
|
1268 |
|
|
if (p == linebuffer || *(p - 1) != '\\')
|
1269 |
|
|
break;
|
1270 |
|
|
|
1271 |
|
|
p--; /* Put on top of '\'. */
|
1272 |
|
|
local_prompt = (char *) 0;
|
1273 |
|
|
}
|
1274 |
|
|
|
1275 |
|
|
#ifdef STOP_SIGNAL
|
1276 |
|
|
if (job_control)
|
1277 |
|
|
signal (STOP_SIGNAL, SIG_DFL);
|
1278 |
|
|
#endif
|
1279 |
|
|
immediate_quit--;
|
1280 |
|
|
|
1281 |
|
|
if (got_eof)
|
1282 |
|
|
return NULL;
|
1283 |
|
|
|
1284 |
|
|
#define SERVER_COMMAND_LENGTH 7
|
1285 |
|
|
server_command =
|
1286 |
|
|
(p - linebuffer > SERVER_COMMAND_LENGTH)
|
1287 |
|
|
&& STREQN (linebuffer, "server ", SERVER_COMMAND_LENGTH);
|
1288 |
|
|
if (server_command)
|
1289 |
|
|
{
|
1290 |
|
|
/* Note that we don't set `line'. Between this and the check in
|
1291 |
|
|
dont_repeat, this insures that repeating will still do the
|
1292 |
|
|
right thing. */
|
1293 |
|
|
*p = '\0';
|
1294 |
|
|
return linebuffer + SERVER_COMMAND_LENGTH;
|
1295 |
|
|
}
|
1296 |
|
|
|
1297 |
|
|
/* Do history expansion if that is wished. */
|
1298 |
|
|
if (history_expansion_p && instream == stdin
|
1299 |
|
|
&& ISATTY (instream))
|
1300 |
|
|
{
|
1301 |
|
|
char *history_value;
|
1302 |
|
|
int expanded;
|
1303 |
|
|
|
1304 |
|
|
*p = '\0'; /* Insert null now. */
|
1305 |
|
|
expanded = history_expand (linebuffer, &history_value);
|
1306 |
|
|
if (expanded)
|
1307 |
|
|
{
|
1308 |
|
|
/* Print the changes. */
|
1309 |
|
|
printf_unfiltered ("%s\n", history_value);
|
1310 |
|
|
|
1311 |
|
|
/* If there was an error, call this function again. */
|
1312 |
|
|
if (expanded < 0)
|
1313 |
|
|
{
|
1314 |
|
|
xfree (history_value);
|
1315 |
|
|
return command_line_input (prompt_arg, repeat, annotation_suffix);
|
1316 |
|
|
}
|
1317 |
|
|
if (strlen (history_value) > linelength)
|
1318 |
|
|
{
|
1319 |
|
|
linelength = strlen (history_value) + 1;
|
1320 |
|
|
linebuffer = (char *) xrealloc (linebuffer, linelength);
|
1321 |
|
|
}
|
1322 |
|
|
strcpy (linebuffer, history_value);
|
1323 |
|
|
p = linebuffer + strlen (linebuffer);
|
1324 |
|
|
xfree (history_value);
|
1325 |
|
|
}
|
1326 |
|
|
}
|
1327 |
|
|
|
1328 |
|
|
/* If we just got an empty line, and that is supposed
|
1329 |
|
|
to repeat the previous command, return the value in the
|
1330 |
|
|
global buffer. */
|
1331 |
|
|
if (repeat && p == linebuffer)
|
1332 |
|
|
return line;
|
1333 |
|
|
for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++);
|
1334 |
|
|
if (repeat && !*p1)
|
1335 |
|
|
return line;
|
1336 |
|
|
|
1337 |
|
|
*p = 0;
|
1338 |
|
|
|
1339 |
|
|
/* Add line to history if appropriate. */
|
1340 |
|
|
if (instream == stdin
|
1341 |
|
|
&& ISATTY (stdin) && *linebuffer)
|
1342 |
|
|
add_history (linebuffer);
|
1343 |
|
|
|
1344 |
|
|
/* Note: lines consisting solely of comments are added to the command
|
1345 |
|
|
history. This is useful when you type a command, and then
|
1346 |
|
|
realize you don't want to execute it quite yet. You can comment
|
1347 |
|
|
out the command and then later fetch it from the value history
|
1348 |
|
|
and remove the '#'. The kill ring is probably better, but some
|
1349 |
|
|
people are in the habit of commenting things out. */
|
1350 |
|
|
if (*p1 == '#')
|
1351 |
|
|
*p1 = '\0'; /* Found a comment. */
|
1352 |
|
|
|
1353 |
|
|
/* Save into global buffer if appropriate. */
|
1354 |
|
|
if (repeat)
|
1355 |
|
|
{
|
1356 |
|
|
if (linelength > linesize)
|
1357 |
|
|
{
|
1358 |
|
|
line = xrealloc (line, linelength);
|
1359 |
|
|
linesize = linelength;
|
1360 |
|
|
}
|
1361 |
|
|
strcpy (line, linebuffer);
|
1362 |
|
|
return line;
|
1363 |
|
|
}
|
1364 |
|
|
|
1365 |
|
|
return linebuffer;
|
1366 |
|
|
}
|
1367 |
|
|
|
1368 |
|
|
/* Print the GDB banner. */
|
1369 |
|
|
void
|
1370 |
|
|
print_gdb_version (struct ui_file *stream)
|
1371 |
|
|
{
|
1372 |
|
|
/* From GNU coding standards, first line is meant to be easy for a
|
1373 |
|
|
program to parse, and is just canonical program name and version
|
1374 |
|
|
number, which starts after last space. */
|
1375 |
|
|
|
1376 |
|
|
#ifdef MI_OUT
|
1377 |
|
|
/* Print it console style until a format is defined */
|
1378 |
|
|
fprintf_filtered (stream, "GNU gdb %s (MI_OUT)\n", version);
|
1379 |
|
|
#else
|
1380 |
|
|
fprintf_filtered (stream, "GNU gdb %s\n", version);
|
1381 |
|
|
#endif
|
1382 |
|
|
|
1383 |
|
|
/* Second line is a copyright notice. */
|
1384 |
|
|
|
1385 |
|
|
fprintf_filtered (stream, "Copyright 2001 Free Software Foundation, Inc.\n");
|
1386 |
|
|
|
1387 |
|
|
/* Following the copyright is a brief statement that the program is
|
1388 |
|
|
free software, that users are free to copy and change it on
|
1389 |
|
|
certain conditions, that it is covered by the GNU GPL, and that
|
1390 |
|
|
there is no warranty. */
|
1391 |
|
|
|
1392 |
|
|
fprintf_filtered (stream, "\
|
1393 |
|
|
GDB is free software, covered by the GNU General Public License, and you are\n\
|
1394 |
|
|
welcome to change it and/or distribute copies of it under certain conditions.\n\
|
1395 |
|
|
Type \"show copying\" to see the conditions.\n\
|
1396 |
|
|
There is absolutely no warranty for GDB. Type \"show warranty\" for details.\n");
|
1397 |
|
|
|
1398 |
|
|
/* After the required info we print the configuration information. */
|
1399 |
|
|
|
1400 |
|
|
fprintf_filtered (stream, "This GDB was configured as \"");
|
1401 |
|
|
if (!STREQ (host_name, target_name))
|
1402 |
|
|
{
|
1403 |
|
|
fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name);
|
1404 |
|
|
}
|
1405 |
|
|
else
|
1406 |
|
|
{
|
1407 |
|
|
fprintf_filtered (stream, "%s", host_name);
|
1408 |
|
|
}
|
1409 |
|
|
fprintf_filtered (stream, "\".");
|
1410 |
|
|
}
|
1411 |
|
|
|
1412 |
|
|
/* get_prompt: access method for the GDB prompt string. */
|
1413 |
|
|
|
1414 |
|
|
#define MAX_PROMPT_SIZE 256
|
1415 |
|
|
|
1416 |
|
|
/*
|
1417 |
|
|
* int get_prompt_1 (char * buf);
|
1418 |
|
|
*
|
1419 |
|
|
* Work-horse for get_prompt (called via catch_errors).
|
1420 |
|
|
* Argument is buffer to hold the formatted prompt.
|
1421 |
|
|
*
|
1422 |
|
|
* Returns: 1 for success (use formatted prompt)
|
1423 |
|
|
* 0 for failure (use gdb_prompt_string).
|
1424 |
|
|
*/
|
1425 |
|
|
|
1426 |
|
|
static int gdb_prompt_escape;
|
1427 |
|
|
|
1428 |
|
|
static int
|
1429 |
|
|
get_prompt_1 (void *data)
|
1430 |
|
|
{
|
1431 |
|
|
char *formatted_prompt = data;
|
1432 |
|
|
char *local_prompt;
|
1433 |
|
|
|
1434 |
|
|
if (event_loop_p)
|
1435 |
|
|
local_prompt = PROMPT (0);
|
1436 |
|
|
else
|
1437 |
|
|
local_prompt = gdb_prompt_string;
|
1438 |
|
|
|
1439 |
|
|
|
1440 |
|
|
if (gdb_prompt_escape == 0)
|
1441 |
|
|
{
|
1442 |
|
|
return 0; /* do no formatting */
|
1443 |
|
|
}
|
1444 |
|
|
else
|
1445 |
|
|
/* formatted prompt */
|
1446 |
|
|
{
|
1447 |
|
|
char fmt[40], *promptp, *outp, *tmp;
|
1448 |
|
|
value_ptr arg_val;
|
1449 |
|
|
DOUBLEST doubleval;
|
1450 |
|
|
LONGEST longval;
|
1451 |
|
|
CORE_ADDR addrval;
|
1452 |
|
|
|
1453 |
|
|
int i, len;
|
1454 |
|
|
struct type *arg_type, *elt_type;
|
1455 |
|
|
|
1456 |
|
|
promptp = local_prompt;
|
1457 |
|
|
outp = formatted_prompt;
|
1458 |
|
|
|
1459 |
|
|
while (*promptp != '\0')
|
1460 |
|
|
{
|
1461 |
|
|
int available = MAX_PROMPT_SIZE - (outp - formatted_prompt) - 1;
|
1462 |
|
|
|
1463 |
|
|
if (*promptp != gdb_prompt_escape)
|
1464 |
|
|
{
|
1465 |
|
|
if (available >= 1) /* overflow protect */
|
1466 |
|
|
*outp++ = *promptp++;
|
1467 |
|
|
}
|
1468 |
|
|
else
|
1469 |
|
|
{
|
1470 |
|
|
/* GDB prompt string contains escape char. Parse for arg.
|
1471 |
|
|
Two consecutive escape chars followed by arg followed by
|
1472 |
|
|
a comma means to insert the arg using a default format.
|
1473 |
|
|
Otherwise a printf format string may be included between
|
1474 |
|
|
the two escape chars. eg:
|
1475 |
|
|
%%foo, insert foo using default format
|
1476 |
|
|
%2.2f%foo, insert foo using "%2.2f" format
|
1477 |
|
|
A mismatch between the format string and the data type
|
1478 |
|
|
of "foo" is an error (which we don't know how to protect
|
1479 |
|
|
against). */
|
1480 |
|
|
|
1481 |
|
|
fmt[0] = '\0'; /* assume null format string */
|
1482 |
|
|
if (promptp[1] == gdb_prompt_escape) /* double esc char */
|
1483 |
|
|
{
|
1484 |
|
|
promptp += 2; /* skip past two escape chars. */
|
1485 |
|
|
}
|
1486 |
|
|
else
|
1487 |
|
|
{
|
1488 |
|
|
/* extract format string from between two esc chars */
|
1489 |
|
|
i = 0;
|
1490 |
|
|
do
|
1491 |
|
|
{
|
1492 |
|
|
fmt[i++] = *promptp++; /* copy format string */
|
1493 |
|
|
}
|
1494 |
|
|
while (i < sizeof (fmt) - 1 &&
|
1495 |
|
|
*promptp != gdb_prompt_escape &&
|
1496 |
|
|
*promptp != '\0');
|
1497 |
|
|
|
1498 |
|
|
if (*promptp != gdb_prompt_escape)
|
1499 |
|
|
error ("Syntax error at prompt position %d",
|
1500 |
|
|
promptp - local_prompt);
|
1501 |
|
|
else
|
1502 |
|
|
{
|
1503 |
|
|
promptp++; /* skip second escape char */
|
1504 |
|
|
fmt[i++] = '\0'; /* terminate the format string */
|
1505 |
|
|
}
|
1506 |
|
|
}
|
1507 |
|
|
|
1508 |
|
|
arg_val = parse_to_comma_and_eval (&promptp);
|
1509 |
|
|
if (*promptp == ',')
|
1510 |
|
|
promptp++; /* skip past the comma */
|
1511 |
|
|
arg_type = check_typedef (VALUE_TYPE (arg_val));
|
1512 |
|
|
switch (TYPE_CODE (arg_type))
|
1513 |
|
|
{
|
1514 |
|
|
case TYPE_CODE_ARRAY:
|
1515 |
|
|
elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type));
|
1516 |
|
|
if (TYPE_LENGTH (arg_type) > 0 &&
|
1517 |
|
|
TYPE_LENGTH (elt_type) == 1 &&
|
1518 |
|
|
TYPE_CODE (elt_type) == TYPE_CODE_INT)
|
1519 |
|
|
{
|
1520 |
|
|
int len = TYPE_LENGTH (arg_type);
|
1521 |
|
|
|
1522 |
|
|
if (VALUE_LAZY (arg_val))
|
1523 |
|
|
value_fetch_lazy (arg_val);
|
1524 |
|
|
tmp = VALUE_CONTENTS (arg_val);
|
1525 |
|
|
|
1526 |
|
|
if (len > available)
|
1527 |
|
|
len = available; /* overflow protect */
|
1528 |
|
|
|
1529 |
|
|
/* FIXME: how to protect GDB from crashing
|
1530 |
|
|
from bad user-supplied format string? */
|
1531 |
|
|
if (fmt[0] != 0)
|
1532 |
|
|
sprintf (outp, fmt, tmp);
|
1533 |
|
|
else
|
1534 |
|
|
strncpy (outp, tmp, len);
|
1535 |
|
|
outp[len] = '\0';
|
1536 |
|
|
}
|
1537 |
|
|
break;
|
1538 |
|
|
case TYPE_CODE_PTR:
|
1539 |
|
|
elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type));
|
1540 |
|
|
addrval = value_as_pointer (arg_val);
|
1541 |
|
|
|
1542 |
|
|
if (TYPE_LENGTH (elt_type) == 1 &&
|
1543 |
|
|
TYPE_CODE (elt_type) == TYPE_CODE_INT &&
|
1544 |
|
|
addrval != 0)
|
1545 |
|
|
{
|
1546 |
|
|
/* display it as a string */
|
1547 |
|
|
char *default_fmt = "%s";
|
1548 |
|
|
char *tmp;
|
1549 |
|
|
int err = 0;
|
1550 |
|
|
|
1551 |
|
|
/* Limiting the number of bytes that the following call
|
1552 |
|
|
will read protects us from sprintf overflow later. */
|
1553 |
|
|
i = target_read_string (addrval, /* src */
|
1554 |
|
|
&tmp, /* dest */
|
1555 |
|
|
available, /* len */
|
1556 |
|
|
&err);
|
1557 |
|
|
if (err) /* read failed */
|
1558 |
|
|
error ("%s on target_read", safe_strerror (err));
|
1559 |
|
|
|
1560 |
|
|
tmp[i] = '\0'; /* force-terminate string */
|
1561 |
|
|
/* FIXME: how to protect GDB from crashing
|
1562 |
|
|
from bad user-supplied format string? */
|
1563 |
|
|
sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
|
1564 |
|
|
tmp);
|
1565 |
|
|
xfree (tmp);
|
1566 |
|
|
}
|
1567 |
|
|
else
|
1568 |
|
|
{
|
1569 |
|
|
/* display it as a pointer */
|
1570 |
|
|
char *default_fmt = "0x%x";
|
1571 |
|
|
|
1572 |
|
|
/* FIXME: how to protect GDB from crashing
|
1573 |
|
|
from bad user-supplied format string? */
|
1574 |
|
|
if (available >= 16 /*? */ ) /* overflow protect */
|
1575 |
|
|
sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
|
1576 |
|
|
(long) addrval);
|
1577 |
|
|
}
|
1578 |
|
|
break;
|
1579 |
|
|
case TYPE_CODE_FLT:
|
1580 |
|
|
{
|
1581 |
|
|
char *default_fmt = "%g";
|
1582 |
|
|
|
1583 |
|
|
doubleval = value_as_double (arg_val);
|
1584 |
|
|
/* FIXME: how to protect GDB from crashing
|
1585 |
|
|
from bad user-supplied format string? */
|
1586 |
|
|
if (available >= 16 /*? */ ) /* overflow protect */
|
1587 |
|
|
sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
|
1588 |
|
|
(double) doubleval);
|
1589 |
|
|
break;
|
1590 |
|
|
}
|
1591 |
|
|
case TYPE_CODE_INT:
|
1592 |
|
|
{
|
1593 |
|
|
char *default_fmt = "%d";
|
1594 |
|
|
|
1595 |
|
|
longval = value_as_long (arg_val);
|
1596 |
|
|
/* FIXME: how to protect GDB from crashing
|
1597 |
|
|
from bad user-supplied format string? */
|
1598 |
|
|
if (available >= 16 /*? */ ) /* overflow protect */
|
1599 |
|
|
sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
|
1600 |
|
|
(long) longval);
|
1601 |
|
|
break;
|
1602 |
|
|
}
|
1603 |
|
|
case TYPE_CODE_BOOL:
|
1604 |
|
|
{
|
1605 |
|
|
/* no default format for bool */
|
1606 |
|
|
longval = value_as_long (arg_val);
|
1607 |
|
|
if (available >= 8 /*? */ ) /* overflow protect */
|
1608 |
|
|
{
|
1609 |
|
|
if (longval)
|
1610 |
|
|
strcpy (outp, "<true>");
|
1611 |
|
|
else
|
1612 |
|
|
strcpy (outp, "<false>");
|
1613 |
|
|
}
|
1614 |
|
|
break;
|
1615 |
|
|
}
|
1616 |
|
|
case TYPE_CODE_ENUM:
|
1617 |
|
|
{
|
1618 |
|
|
/* no default format for enum */
|
1619 |
|
|
longval = value_as_long (arg_val);
|
1620 |
|
|
len = TYPE_NFIELDS (arg_type);
|
1621 |
|
|
/* find enum name if possible */
|
1622 |
|
|
for (i = 0; i < len; i++)
|
1623 |
|
|
if (TYPE_FIELD_BITPOS (arg_type, i) == longval)
|
1624 |
|
|
break; /* match -- end loop */
|
1625 |
|
|
|
1626 |
|
|
if (i < len) /* enum name found */
|
1627 |
|
|
{
|
1628 |
|
|
char *name = TYPE_FIELD_NAME (arg_type, i);
|
1629 |
|
|
|
1630 |
|
|
strncpy (outp, name, available);
|
1631 |
|
|
/* in casel available < strlen (name), */
|
1632 |
|
|
outp[available] = '\0';
|
1633 |
|
|
}
|
1634 |
|
|
else
|
1635 |
|
|
{
|
1636 |
|
|
if (available >= 16 /*? */ ) /* overflow protect */
|
1637 |
|
|
sprintf (outp, "%ld", (long) longval);
|
1638 |
|
|
}
|
1639 |
|
|
break;
|
1640 |
|
|
}
|
1641 |
|
|
case TYPE_CODE_VOID:
|
1642 |
|
|
*outp = '\0';
|
1643 |
|
|
break; /* void type -- no output */
|
1644 |
|
|
default:
|
1645 |
|
|
error ("bad data type at prompt position %d",
|
1646 |
|
|
promptp - local_prompt);
|
1647 |
|
|
break;
|
1648 |
|
|
}
|
1649 |
|
|
outp += strlen (outp);
|
1650 |
|
|
}
|
1651 |
|
|
}
|
1652 |
|
|
*outp++ = '\0'; /* terminate prompt string */
|
1653 |
|
|
return 1;
|
1654 |
|
|
}
|
1655 |
|
|
}
|
1656 |
|
|
|
1657 |
|
|
char *
|
1658 |
|
|
get_prompt (void)
|
1659 |
|
|
{
|
1660 |
|
|
static char buf[MAX_PROMPT_SIZE];
|
1661 |
|
|
|
1662 |
|
|
if (catch_errors (get_prompt_1, buf, "bad formatted prompt: ",
|
1663 |
|
|
RETURN_MASK_ALL))
|
1664 |
|
|
{
|
1665 |
|
|
return &buf[0]; /* successful formatted prompt */
|
1666 |
|
|
}
|
1667 |
|
|
else
|
1668 |
|
|
{
|
1669 |
|
|
/* Prompt could not be formatted. */
|
1670 |
|
|
if (event_loop_p)
|
1671 |
|
|
return PROMPT (0);
|
1672 |
|
|
else
|
1673 |
|
|
return gdb_prompt_string;
|
1674 |
|
|
}
|
1675 |
|
|
}
|
1676 |
|
|
|
1677 |
|
|
void
|
1678 |
|
|
set_prompt (char *s)
|
1679 |
|
|
{
|
1680 |
|
|
/* ??rehrauer: I don't know why this fails, since it looks as though
|
1681 |
|
|
assignments to prompt are wrapped in calls to savestring...
|
1682 |
|
|
if (prompt != NULL)
|
1683 |
|
|
xfree (prompt);
|
1684 |
|
|
*/
|
1685 |
|
|
if (event_loop_p)
|
1686 |
|
|
PROMPT (0) = savestring (s, strlen (s));
|
1687 |
|
|
else
|
1688 |
|
|
gdb_prompt_string = savestring (s, strlen (s));
|
1689 |
|
|
}
|
1690 |
|
|
|
1691 |
|
|
|
1692 |
|
|
/* If necessary, make the user confirm that we should quit. Return
|
1693 |
|
|
non-zero if we should quit, zero if we shouldn't. */
|
1694 |
|
|
|
1695 |
|
|
int
|
1696 |
|
|
quit_confirm (void)
|
1697 |
|
|
{
|
1698 |
|
|
if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
|
1699 |
|
|
{
|
1700 |
|
|
char *s;
|
1701 |
|
|
|
1702 |
|
|
/* This is something of a hack. But there's no reliable way to
|
1703 |
|
|
see if a GUI is running. The `use_windows' variable doesn't
|
1704 |
|
|
cut it. */
|
1705 |
|
|
if (init_ui_hook)
|
1706 |
|
|
s = "A debugging session is active.\nDo you still want to close the debugger?";
|
1707 |
|
|
else if (attach_flag)
|
1708 |
|
|
s = "The program is running. Quit anyway (and detach it)? ";
|
1709 |
|
|
else
|
1710 |
|
|
s = "The program is running. Exit anyway? ";
|
1711 |
|
|
|
1712 |
|
|
if (!query (s))
|
1713 |
|
|
return 0;
|
1714 |
|
|
}
|
1715 |
|
|
|
1716 |
|
|
return 1;
|
1717 |
|
|
}
|
1718 |
|
|
|
1719 |
|
|
/* Quit without asking for confirmation. */
|
1720 |
|
|
|
1721 |
|
|
void
|
1722 |
|
|
quit_force (char *args, int from_tty)
|
1723 |
|
|
{
|
1724 |
|
|
int exit_code = 0;
|
1725 |
|
|
|
1726 |
|
|
/* An optional expression may be used to cause gdb to terminate with the
|
1727 |
|
|
value of that expression. */
|
1728 |
|
|
if (args)
|
1729 |
|
|
{
|
1730 |
|
|
value_ptr val = parse_and_eval (args);
|
1731 |
|
|
|
1732 |
|
|
exit_code = (int) value_as_long (val);
|
1733 |
|
|
}
|
1734 |
|
|
|
1735 |
|
|
if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
|
1736 |
|
|
{
|
1737 |
|
|
if (attach_flag)
|
1738 |
|
|
target_detach (args, from_tty);
|
1739 |
|
|
else
|
1740 |
|
|
target_kill ();
|
1741 |
|
|
}
|
1742 |
|
|
|
1743 |
|
|
/* UDI wants this, to kill the TIP. */
|
1744 |
|
|
target_close (1);
|
1745 |
|
|
|
1746 |
|
|
/* Save the history information if it is appropriate to do so. */
|
1747 |
|
|
if (write_history_p && history_filename)
|
1748 |
|
|
write_history (history_filename);
|
1749 |
|
|
|
1750 |
|
|
do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */
|
1751 |
|
|
|
1752 |
|
|
#if defined(TUI)
|
1753 |
|
|
/* tuiDo((TuiOpaqueFuncPtr)tuiCleanUp); */
|
1754 |
|
|
/* The above does not need to be inside a tuiDo(), since
|
1755 |
|
|
* it is not manipulating the curses screen, but rather,
|
1756 |
|
|
* it is tearing it down.
|
1757 |
|
|
*/
|
1758 |
|
|
if (tui_version)
|
1759 |
|
|
tuiCleanUp ();
|
1760 |
|
|
#endif
|
1761 |
|
|
|
1762 |
|
|
exit (exit_code);
|
1763 |
|
|
}
|
1764 |
|
|
|
1765 |
|
|
/* Returns whether GDB is running on a terminal and whether the user
|
1766 |
|
|
desires that questions be asked of them on that terminal. */
|
1767 |
|
|
|
1768 |
|
|
int
|
1769 |
|
|
input_from_terminal_p (void)
|
1770 |
|
|
{
|
1771 |
|
|
return gdb_has_a_terminal () && (instream == stdin) & caution;
|
1772 |
|
|
}
|
1773 |
|
|
|
1774 |
|
|
/* ARGSUSED */
|
1775 |
|
|
static void
|
1776 |
|
|
dont_repeat_command (char *ignored, int from_tty)
|
1777 |
|
|
{
|
1778 |
|
|
*line = 0; /* Can't call dont_repeat here because we're not
|
1779 |
|
|
necessarily reading from stdin. */
|
1780 |
|
|
}
|
1781 |
|
|
|
1782 |
|
|
/* Functions to manipulate command line editing control variables. */
|
1783 |
|
|
|
1784 |
|
|
/* Number of commands to print in each call to show_commands. */
|
1785 |
|
|
#define Hist_print 10
|
1786 |
|
|
void
|
1787 |
|
|
show_commands (char *args, int from_tty)
|
1788 |
|
|
{
|
1789 |
|
|
/* Index for history commands. Relative to history_base. */
|
1790 |
|
|
int offset;
|
1791 |
|
|
|
1792 |
|
|
/* Number of the history entry which we are planning to display next.
|
1793 |
|
|
Relative to history_base. */
|
1794 |
|
|
static int num = 0;
|
1795 |
|
|
|
1796 |
|
|
/* The first command in the history which doesn't exist (i.e. one more
|
1797 |
|
|
than the number of the last command). Relative to history_base. */
|
1798 |
|
|
int hist_len;
|
1799 |
|
|
|
1800 |
|
|
extern HIST_ENTRY *history_get (int);
|
1801 |
|
|
|
1802 |
|
|
/* Print out some of the commands from the command history. */
|
1803 |
|
|
/* First determine the length of the history list. */
|
1804 |
|
|
hist_len = history_size;
|
1805 |
|
|
for (offset = 0; offset < history_size; offset++)
|
1806 |
|
|
{
|
1807 |
|
|
if (!history_get (history_base + offset))
|
1808 |
|
|
{
|
1809 |
|
|
hist_len = offset;
|
1810 |
|
|
break;
|
1811 |
|
|
}
|
1812 |
|
|
}
|
1813 |
|
|
|
1814 |
|
|
if (args)
|
1815 |
|
|
{
|
1816 |
|
|
if (args[0] == '+' && args[1] == '\0')
|
1817 |
|
|
/* "info editing +" should print from the stored position. */
|
1818 |
|
|
;
|
1819 |
|
|
else
|
1820 |
|
|
/* "info editing <exp>" should print around command number <exp>. */
|
1821 |
|
|
num = (parse_and_eval_long (args) - history_base) - Hist_print / 2;
|
1822 |
|
|
}
|
1823 |
|
|
/* "show commands" means print the last Hist_print commands. */
|
1824 |
|
|
else
|
1825 |
|
|
{
|
1826 |
|
|
num = hist_len - Hist_print;
|
1827 |
|
|
}
|
1828 |
|
|
|
1829 |
|
|
if (num < 0)
|
1830 |
|
|
num = 0;
|
1831 |
|
|
|
1832 |
|
|
/* If there are at least Hist_print commands, we want to display the last
|
1833 |
|
|
Hist_print rather than, say, the last 6. */
|
1834 |
|
|
if (hist_len - num < Hist_print)
|
1835 |
|
|
{
|
1836 |
|
|
num = hist_len - Hist_print;
|
1837 |
|
|
if (num < 0)
|
1838 |
|
|
num = 0;
|
1839 |
|
|
}
|
1840 |
|
|
|
1841 |
|
|
for (offset = num; offset < num + Hist_print && offset < hist_len; offset++)
|
1842 |
|
|
{
|
1843 |
|
|
printf_filtered ("%5d %s\n", history_base + offset,
|
1844 |
|
|
(history_get (history_base + offset))->line);
|
1845 |
|
|
}
|
1846 |
|
|
|
1847 |
|
|
/* The next command we want to display is the next one that we haven't
|
1848 |
|
|
displayed yet. */
|
1849 |
|
|
num += Hist_print;
|
1850 |
|
|
|
1851 |
|
|
/* If the user repeats this command with return, it should do what
|
1852 |
|
|
"show commands +" does. This is unnecessary if arg is null,
|
1853 |
|
|
because "show commands +" is not useful after "show commands". */
|
1854 |
|
|
if (from_tty && args)
|
1855 |
|
|
{
|
1856 |
|
|
args[0] = '+';
|
1857 |
|
|
args[1] = '\0';
|
1858 |
|
|
}
|
1859 |
|
|
}
|
1860 |
|
|
|
1861 |
|
|
/* Called by do_setshow_command. */
|
1862 |
|
|
/* ARGSUSED */
|
1863 |
|
|
static void
|
1864 |
|
|
set_history_size_command (char *args, int from_tty, struct cmd_list_element *c)
|
1865 |
|
|
{
|
1866 |
|
|
if (history_size == INT_MAX)
|
1867 |
|
|
unstifle_history ();
|
1868 |
|
|
else if (history_size >= 0)
|
1869 |
|
|
stifle_history (history_size);
|
1870 |
|
|
else
|
1871 |
|
|
{
|
1872 |
|
|
history_size = INT_MAX;
|
1873 |
|
|
error ("History size must be non-negative");
|
1874 |
|
|
}
|
1875 |
|
|
}
|
1876 |
|
|
|
1877 |
|
|
/* ARGSUSED */
|
1878 |
|
|
void
|
1879 |
|
|
set_history (char *args, int from_tty)
|
1880 |
|
|
{
|
1881 |
|
|
printf_unfiltered ("\"set history\" must be followed by the name of a history subcommand.\n");
|
1882 |
|
|
help_list (sethistlist, "set history ", -1, gdb_stdout);
|
1883 |
|
|
}
|
1884 |
|
|
|
1885 |
|
|
/* ARGSUSED */
|
1886 |
|
|
void
|
1887 |
|
|
show_history (char *args, int from_tty)
|
1888 |
|
|
{
|
1889 |
|
|
cmd_show_list (showhistlist, from_tty, "");
|
1890 |
|
|
}
|
1891 |
|
|
|
1892 |
|
|
int info_verbose = 0; /* Default verbose msgs off */
|
1893 |
|
|
|
1894 |
|
|
/* Called by do_setshow_command. An elaborate joke. */
|
1895 |
|
|
/* ARGSUSED */
|
1896 |
|
|
void
|
1897 |
|
|
set_verbose (char *args, int from_tty, struct cmd_list_element *c)
|
1898 |
|
|
{
|
1899 |
|
|
char *cmdname = "verbose";
|
1900 |
|
|
struct cmd_list_element *showcmd;
|
1901 |
|
|
|
1902 |
|
|
showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
|
1903 |
|
|
|
1904 |
|
|
if (info_verbose)
|
1905 |
|
|
{
|
1906 |
|
|
c->doc = "Set verbose printing of informational messages.";
|
1907 |
|
|
showcmd->doc = "Show verbose printing of informational messages.";
|
1908 |
|
|
}
|
1909 |
|
|
else
|
1910 |
|
|
{
|
1911 |
|
|
c->doc = "Set verbosity.";
|
1912 |
|
|
showcmd->doc = "Show verbosity.";
|
1913 |
|
|
}
|
1914 |
|
|
}
|
1915 |
|
|
|
1916 |
|
|
static void
|
1917 |
|
|
float_handler (int signo)
|
1918 |
|
|
{
|
1919 |
|
|
/* This message is based on ANSI C, section 4.7. Note that integer
|
1920 |
|
|
divide by zero causes this, so "float" is a misnomer. */
|
1921 |
|
|
signal (SIGFPE, float_handler);
|
1922 |
|
|
error ("Erroneous arithmetic operation.");
|
1923 |
|
|
}
|
1924 |
|
|
|
1925 |
|
|
/* Init the history buffer. Note that we are called after the init file(s)
|
1926 |
|
|
* have been read so that the user can change the history file via his
|
1927 |
|
|
* .gdbinit file (for instance). The GDBHISTFILE environment variable
|
1928 |
|
|
* overrides all of this.
|
1929 |
|
|
*/
|
1930 |
|
|
|
1931 |
|
|
void
|
1932 |
|
|
init_history (void)
|
1933 |
|
|
{
|
1934 |
|
|
char *tmpenv;
|
1935 |
|
|
|
1936 |
|
|
tmpenv = getenv ("HISTSIZE");
|
1937 |
|
|
if (tmpenv)
|
1938 |
|
|
history_size = atoi (tmpenv);
|
1939 |
|
|
else if (!history_size)
|
1940 |
|
|
history_size = 256;
|
1941 |
|
|
|
1942 |
|
|
stifle_history (history_size);
|
1943 |
|
|
|
1944 |
|
|
tmpenv = getenv ("GDBHISTFILE");
|
1945 |
|
|
if (tmpenv)
|
1946 |
|
|
history_filename = savestring (tmpenv, strlen (tmpenv));
|
1947 |
|
|
else if (!history_filename)
|
1948 |
|
|
{
|
1949 |
|
|
/* We include the current directory so that if the user changes
|
1950 |
|
|
directories the file written will be the same as the one
|
1951 |
|
|
that was read. */
|
1952 |
|
|
#ifdef __MSDOS__
|
1953 |
|
|
/* No leading dots in file names are allowed on MSDOS. */
|
1954 |
|
|
history_filename = concat (current_directory, "/_gdb_history", NULL);
|
1955 |
|
|
#else
|
1956 |
|
|
history_filename = concat (current_directory, "/.gdb_history", NULL);
|
1957 |
|
|
#endif
|
1958 |
|
|
}
|
1959 |
|
|
read_history (history_filename);
|
1960 |
|
|
}
|
1961 |
|
|
|
1962 |
|
|
static void
|
1963 |
|
|
init_main (void)
|
1964 |
|
|
{
|
1965 |
|
|
struct cmd_list_element *c;
|
1966 |
|
|
|
1967 |
|
|
/* If we are running the asynchronous version,
|
1968 |
|
|
we initialize the prompts differently. */
|
1969 |
|
|
if (!event_loop_p)
|
1970 |
|
|
{
|
1971 |
|
|
gdb_prompt_string = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
|
1972 |
|
|
}
|
1973 |
|
|
else
|
1974 |
|
|
{
|
1975 |
|
|
/* initialize the prompt stack to a simple "(gdb) " prompt or to
|
1976 |
|
|
whatever the DEFAULT_PROMPT is. */
|
1977 |
|
|
the_prompts.top = 0;
|
1978 |
|
|
PREFIX (0) = "";
|
1979 |
|
|
PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
|
1980 |
|
|
SUFFIX (0) = "";
|
1981 |
|
|
/* Set things up for annotation_level > 1, if the user ever decides
|
1982 |
|
|
to use it. */
|
1983 |
|
|
async_annotation_suffix = "prompt";
|
1984 |
|
|
/* Set the variable associated with the setshow prompt command. */
|
1985 |
|
|
new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0)));
|
1986 |
|
|
|
1987 |
|
|
/* If gdb was started with --annotate=2, this is equivalent to
|
1988 |
|
|
the user entering the command 'set annotate 2' at the gdb
|
1989 |
|
|
prompt, so we need to do extra processing. */
|
1990 |
|
|
if (annotation_level > 1)
|
1991 |
|
|
set_async_annotation_level (NULL, 0, NULL);
|
1992 |
|
|
}
|
1993 |
|
|
gdb_prompt_escape = 0; /* default to none. */
|
1994 |
|
|
|
1995 |
|
|
/* Set the important stuff up for command editing. */
|
1996 |
|
|
command_editing_p = 1;
|
1997 |
|
|
history_expansion_p = 0;
|
1998 |
|
|
write_history_p = 0;
|
1999 |
|
|
|
2000 |
|
|
/* Setup important stuff for command line editing. */
|
2001 |
|
|
rl_completion_entry_function = (int (*)()) readline_line_completion_function;
|
2002 |
|
|
rl_completer_word_break_characters =
|
2003 |
|
|
get_gdb_completer_word_break_characters ();
|
2004 |
|
|
rl_completer_quote_characters = get_gdb_completer_quote_characters ();
|
2005 |
|
|
rl_readline_name = "gdb";
|
2006 |
|
|
|
2007 |
|
|
/* The set prompt command is different depending whether or not the
|
2008 |
|
|
async version is run. NOTE: this difference is going to
|
2009 |
|
|
disappear as we make the event loop be the default engine of
|
2010 |
|
|
gdb. */
|
2011 |
|
|
if (!event_loop_p)
|
2012 |
|
|
{
|
2013 |
|
|
add_show_from_set
|
2014 |
|
|
(add_set_cmd ("prompt", class_support, var_string,
|
2015 |
|
|
(char *) &gdb_prompt_string, "Set gdb's prompt",
|
2016 |
|
|
&setlist),
|
2017 |
|
|
&showlist);
|
2018 |
|
|
}
|
2019 |
|
|
else
|
2020 |
|
|
{
|
2021 |
|
|
c = add_set_cmd ("prompt", class_support, var_string,
|
2022 |
|
|
(char *) &new_async_prompt, "Set gdb's prompt",
|
2023 |
|
|
&setlist);
|
2024 |
|
|
add_show_from_set (c, &showlist);
|
2025 |
|
|
c->function.sfunc = set_async_prompt;
|
2026 |
|
|
}
|
2027 |
|
|
|
2028 |
|
|
add_show_from_set
|
2029 |
|
|
(add_set_cmd ("prompt-escape-char", class_support, var_zinteger,
|
2030 |
|
|
(char *) &gdb_prompt_escape,
|
2031 |
|
|
"Set escape character for formatting of gdb's prompt",
|
2032 |
|
|
&setlist),
|
2033 |
|
|
&showlist);
|
2034 |
|
|
|
2035 |
|
|
add_com ("dont-repeat", class_support, dont_repeat_command, "Don't repeat this command.\n\
|
2036 |
|
|
Primarily used inside of user-defined commands that should not be repeated when\n\
|
2037 |
|
|
hitting return.");
|
2038 |
|
|
|
2039 |
|
|
/* The set editing command is different depending whether or not the
|
2040 |
|
|
async version is run. NOTE: this difference is going to disappear
|
2041 |
|
|
as we make the event loop be the default engine of gdb. */
|
2042 |
|
|
if (!event_loop_p)
|
2043 |
|
|
{
|
2044 |
|
|
add_show_from_set
|
2045 |
|
|
(add_set_cmd ("editing", class_support, var_boolean, (char *) &command_editing_p,
|
2046 |
|
|
"Set editing of command lines as they are typed.\n\
|
2047 |
|
|
Use \"on\" to enable the editing, and \"off\" to disable it.\n\
|
2048 |
|
|
Without an argument, command line editing is enabled. To edit, use\n\
|
2049 |
|
|
EMACS-like or VI-like commands like control-P or ESC.", &setlist),
|
2050 |
|
|
&showlist);
|
2051 |
|
|
}
|
2052 |
|
|
else
|
2053 |
|
|
{
|
2054 |
|
|
c = add_set_cmd ("editing", class_support, var_boolean, (char *) &async_command_editing_p,
|
2055 |
|
|
"Set editing of command lines as they are typed.\n\
|
2056 |
|
|
Use \"on\" to enable the editing, and \"off\" to disable it.\n\
|
2057 |
|
|
Without an argument, command line editing is enabled. To edit, use\n\
|
2058 |
|
|
EMACS-like or VI-like commands like control-P or ESC.", &setlist);
|
2059 |
|
|
|
2060 |
|
|
add_show_from_set (c, &showlist);
|
2061 |
|
|
c->function.sfunc = set_async_editing_command;
|
2062 |
|
|
}
|
2063 |
|
|
|
2064 |
|
|
add_show_from_set
|
2065 |
|
|
(add_set_cmd ("save", no_class, var_boolean, (char *) &write_history_p,
|
2066 |
|
|
"Set saving of the history record on exit.\n\
|
2067 |
|
|
Use \"on\" to enable the saving, and \"off\" to disable it.\n\
|
2068 |
|
|
Without an argument, saving is enabled.", &sethistlist),
|
2069 |
|
|
&showhistlist);
|
2070 |
|
|
|
2071 |
|
|
c = add_set_cmd ("size", no_class, var_integer, (char *) &history_size,
|
2072 |
|
|
"Set the size of the command history, \n\
|
2073 |
|
|
ie. the number of previous commands to keep a record of.", &sethistlist);
|
2074 |
|
|
add_show_from_set (c, &showhistlist);
|
2075 |
|
|
c->function.sfunc = set_history_size_command;
|
2076 |
|
|
|
2077 |
|
|
c = add_set_cmd ("filename", no_class, var_filename,
|
2078 |
|
|
(char *) &history_filename,
|
2079 |
|
|
"Set the filename in which to record the command history\n\
|
2080 |
|
|
(the list of previous commands of which a record is kept).", &sethistlist);
|
2081 |
|
|
c->completer = filename_completer;
|
2082 |
|
|
add_show_from_set (c, &showhistlist);
|
2083 |
|
|
|
2084 |
|
|
add_show_from_set
|
2085 |
|
|
(add_set_cmd ("confirm", class_support, var_boolean,
|
2086 |
|
|
(char *) &caution,
|
2087 |
|
|
"Set whether to confirm potentially dangerous operations.",
|
2088 |
|
|
&setlist),
|
2089 |
|
|
&showlist);
|
2090 |
|
|
|
2091 |
|
|
/* The set annotate command is different depending whether or not
|
2092 |
|
|
the async version is run. NOTE: this difference is going to
|
2093 |
|
|
disappear as we make the event loop be the default engine of
|
2094 |
|
|
gdb. */
|
2095 |
|
|
if (!event_loop_p)
|
2096 |
|
|
{
|
2097 |
|
|
c = add_set_cmd ("annotate", class_obscure, var_zinteger,
|
2098 |
|
|
(char *) &annotation_level, "Set annotation_level.\n\
|
2099 |
|
|
|
2100 |
|
|
2 == output annotated suitably for use by programs that control GDB.",
|
2101 |
|
|
&setlist);
|
2102 |
|
|
c = add_show_from_set (c, &showlist);
|
2103 |
|
|
}
|
2104 |
|
|
else
|
2105 |
|
|
{
|
2106 |
|
|
c = add_set_cmd ("annotate", class_obscure, var_zinteger,
|
2107 |
|
|
(char *) &annotation_level, "Set annotation_level.\n\
|
2108 |
|
|
|
2109 |
|
|
2 == output annotated suitably for use by programs that control GDB.",
|
2110 |
|
|
&setlist);
|
2111 |
|
|
add_show_from_set (c, &showlist);
|
2112 |
|
|
c->function.sfunc = set_async_annotation_level;
|
2113 |
|
|
}
|
2114 |
|
|
if (event_loop_p)
|
2115 |
|
|
{
|
2116 |
|
|
add_show_from_set
|
2117 |
|
|
(add_set_cmd ("exec-done-display", class_support, var_boolean, (char *) &exec_done_display_p,
|
2118 |
|
|
"Set notification of completion for asynchronous execution commands.\n\
|
2119 |
|
|
Use \"on\" to enable the notification, and \"off\" to disable it.", &setlist),
|
2120 |
|
|
&showlist);
|
2121 |
|
|
}
|
2122 |
|
|
}
|