/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
- Free Software Foundation, Inc.
+ Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+ 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcmd.h"
#include "doublest.h"
#include "gdb_assert.h"
#include "main.h"
+#include "event-loop.h"
+#include "gdbthread.h"
+#include "python/python.h"
-/* readline include files */
+/* readline include files. */
#include "readline/readline.h"
#include "readline/history.h"
#include "ui-out.h"
#include "cli-out.h"
-/* Default command line prompt. This is overriden in some configs. */
+/* Default command line prompt. This is overriden in some configs. */
#ifndef DEFAULT_PROMPT
#define DEFAULT_PROMPT "(gdb) "
/* Flag for whether we want all the "from_tty" gubbish printed. */
-int caution = 1; /* Default is yes, sigh. */
+int caution = 1; /* Default is yes, sigh. */
static void
show_caution (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Whether to confirm potentially dangerous operations is %s.\n"),
+ fprintf_filtered (file, _("Whether to confirm potentially "
+ "dangerous operations is %s.\n"),
value);
}
-/* stdio stream that command input is being read from. Set to stdin normally.
- Set by source_command to the file we are sourcing. Set to NULL if we are
- executing a user-defined command or interacting via a GUI. */
+/* stdio stream that command input is being read from. Set to stdin
+ normally. Set by source_command to the file we are sourcing. Set
+ to NULL if we are executing a user-defined command or interacting
+ via a GUI. */
FILE *instream;
int epoch_interface;
int xgdb_verbose;
-/* gdb prints this when reading a command interactively */
-static char *gdb_prompt_string; /* the global prompt string */
-
/* Buffer used for reading command lines, and the size
allocated for it so far. */
/* Baud rate specified for talking to serial target systems. Default
is left as -1, so targets can choose their own defaults. */
-/* FIXME: This means that "show remotebaud" and gr_files_info can print -1
- or (unsigned int)-1. This is a Bad User Interface. */
+/* FIXME: This means that "show remotebaud" and gr_files_info can
+ print -1 or (unsigned int)-1. This is a Bad User Interface. */
int baud_rate = -1;
-/* Timeout limit for response from target. */
+/* Timeout limit for response from target. */
/* The default value has been changed many times over the years. It
was originally 5 seconds. But that was thought to be a long time
a single variable for all protocol timeouts.
As remote.c is used much more than remote-e7000.c, it was changed
- back to 2 seconds in 1999. */
+ back to 2 seconds in 1999. */
int remote_timeout = 2;
int remote_debug = 0;
-/* Non-zero means the target is running. Note: this is different from
- saying that there is an active target and we are stopped at a
- breakpoint, for instance. This is a real indicator whether the
- target is off and running, which gdb is doing something else. */
-int target_executing = 0;
-
/* Sbrk location on entry to main. Used for statistics only. */
#ifdef HAVE_SBRK
char *lim_at_start;
#endif
-/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
-
-#ifndef STOP_SIGNAL
-#ifdef SIGTSTP
-#define STOP_SIGNAL SIGTSTP
-static void stop_sig (int);
-#endif
-#endif
-
/* Hooks for alternate command interfaces. */
-/* Called after most modules have been initialized, but before taking users
- command file.
+/* Called after most modules have been initialized, but before taking
+ users command file.
- If the UI fails to initialize and it wants GDB to continue
- using the default UI, then it should clear this hook before returning. */
+ If the UI fails to initialize and it wants GDB to continue using
+ the default UI, then it should clear this hook before returning. */
void (*deprecated_init_ui_hook) (char *argv0);
-/* This hook is called from within gdb's many mini-event loops which could
- steal control from a real user interface's event loop. It returns
- non-zero if the user is requesting a detach, zero otherwise. */
+/* This hook is called from within gdb's many mini-event loops which
+ could steal control from a real user interface's event loop. It
+ returns non-zero if the user is requesting a detach, zero
+ otherwise. */
int (*deprecated_ui_loop_hook) (int);
/* Called from print_frame_info to list the line we stopped in. */
-void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line,
- int stopline, int noerror);
+void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
+ int line,
+ int stopline,
+ int noerror);
/* Replaces most of query. */
int (*deprecated_query_hook) (const char *, va_list);
char *(*deprecated_readline_hook) (char *);
void (*deprecated_readline_end_hook) (void);
-/* Called as appropriate to notify the interface of the specified breakpoint
- conditions. */
-
-void (*deprecated_create_breakpoint_hook) (struct breakpoint * bpt);
-void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
-void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
-
/* Called as appropriate to notify the interface that we have attached
- to or detached from an already running process. */
+ to or detached from an already running process. */
void (*deprecated_attach_hook) (void);
void (*deprecated_detach_hook) (void);
-/* Called during long calculations to allow GUI to repair window damage, and to
- check for stop buttons, etc... */
+/* Called during long calculations to allow GUI to repair window
+ damage, and to check for stop buttons, etc... */
void (*deprecated_interactive_hook) (void);
-/* Called when the registers have changed, as a hint to a GUI
- to minimize window update. */
-
-void (*deprecated_registers_changed_hook) (void);
-
-/* Tell the GUI someone changed the register REGNO. -1 means
+/* Tell the GUI someone changed the register REGNO. -1 means
that the caller does not know which register changed or
- that several registers have changed (see value_assign). */
+ that several registers have changed (see value_assign). */
void (*deprecated_register_changed_hook) (int regno);
-/* Tell the GUI someone changed LEN bytes of memory at ADDR */
-void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
-
-/* Called when going to wait for the target. Usually allows the GUI to run
- while waiting for target events. */
+/* Called when going to wait for the target. Usually allows the GUI
+ to run while waiting for target events. */
ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
- struct target_waitstatus * status);
+ struct target_waitstatus *status,
+ int options);
-/* Used by UI as a wrapper around command execution. May do various things
- like enabling/disabling buttons, etc... */
+/* Used by UI as a wrapper around command execution. May do various
+ things like enabling/disabling buttons, etc... */
-void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd,
- int from_tty);
+void (*deprecated_call_command_hook) (struct cmd_list_element * c,
+ char *cmd, int from_tty);
/* Called after a `set' command has finished. Is only run if the
`set' command succeeded. */
void (*deprecated_context_hook) (int id);
-/* Takes control from error (). Typically used to prevent longjmps out of the
- middle of the GUI. Usually used in conjunction with a catch routine. */
-
-void (*deprecated_error_hook) (void);
-
/* Handler for SIGHUP. */
#ifdef SIGHUP
/* NOTE 1999-04-29: This function will be static again, once we modify
gdb to use the event loop as the default command loop and we merge
- event-top.c into this file, top.c */
+ event-top.c into this file, top.c. */
/* static */ int
quit_cover (void *s)
{
caution = 0; /* Throw caution to the wind -- we're exiting.
- This prevents asking the user dumb questions. */
+ This prevents asking the user dumb
+ questions. */
quit_command ((char *) 0, 0);
return 0;
}
#endif /* defined SIGHUP */
\f
-/* Line number we are currently in in a file which is being sourced. */
+/* Line number we are currently in, in a file which is being sourced. */
/* NOTE 1999-04-29: This variable will be static again, once we modify
gdb to use the event loop as the default command loop and we merge
- event-top.c into this file, top.c */
+ event-top.c into this file, top.c. */
/* static */ int source_line_number;
/* Name of the file we are sourcing. */
/* NOTE 1999-04-29: This variable will be static again, once we modify
gdb to use the event loop as the default command loop and we merge
- event-top.c into this file, top.c */
-/* static */ char *source_file_name;
+ event-top.c into this file, top.c. */
+/* static */ const char *source_file_name;
/* Clean up on error during a "source" command (or execution of a
user-defined command). */
}
#endif
-/* Execute the line P as a command.
+struct cleanup *
+prepare_execute_command (void)
+{
+ struct value *mark;
+ struct cleanup *cleanup;
+
+ mark = value_mark ();
+ cleanup = make_cleanup_value_free_to_mark (mark);
+
+ /* With multiple threads running while the one we're examining is
+ stopped, the dcache can get stale without us being able to detect
+ it. For the duration of the command, though, use the dcache to
+ help things like backtrace. */
+ if (non_stop)
+ target_dcache_invalidate ();
+
+ return cleanup;
+}
+
+/* Execute the line P as a command, in the current user context.
Pass FROM_TTY as second argument to the defining function. */
void
execute_command (char *p, int from_tty)
{
+ struct cleanup *cleanup;
struct cmd_list_element *c;
enum language flang;
static int warned = 0;
char *line;
-
- free_all_values ();
+
+ cleanup = prepare_execute_command ();
/* Force cleanup of any alloca areas if using C alloca instead of
a builtin alloca. */
if (p == NULL)
return;
- serial_log_command (p);
+ target_log_command (p);
while (*p == ' ' || *p == '\t')
p++;
c = lookup_cmd (&p, cmdlist, "", 0, 1);
- /* If the target is running, we allow only a limited set of
- commands. */
- if (target_can_async_p () && target_executing)
- if (strcmp (c->name, "help") != 0
- && strcmp (c->name, "pwd") != 0
- && strcmp (c->name, "show") != 0
- && strcmp (c->name, "stop") != 0)
- error (_("Cannot execute this command while the target is running."));
-
/* Pass null arg rather than an empty one. */
arg = *p ? p : 0;
*(p + 1) = '\0';
}
- /* If this command has been pre-hooked, run the hook first. */
+ /* If this command has been pre-hooked, run the hook first. */
execute_cmd_pre_hook (c);
if (c->flags & DEPRECATED_WARN_USER)
else
cmd_func (c, arg, from_tty & caution);
- /* If this command has been post-hooked, run the hook last. */
+ /* If this command has been post-hooked, run the hook last. */
execute_cmd_post_hook (c);
}
- /* Tell the user if the language has changed (except first time). */
+ /* Tell the user if the language has changed (except first time).
+ First make sure that a new frame has been selected, in case this
+ command or the hooks changed the program state. */
+ deprecated_safe_get_selected_frame ();
if (current_language != expected_language)
{
- if (language_mode == language_mode_auto)
+ if (language_mode == language_mode_auto && info_verbose)
{
language_info (1); /* Print what changed. */
}
/* Warn the user if the working language does not match the
language of the current frame. Only warn the user if we are
- actually running the program, i.e. there is a stack. */
+ actually running the program, i.e. there is a stack. */
/* FIXME: This should be cacheing the frame and only running when
the frame changes. */
- if (target_has_stack)
+ if (has_stack_frames ())
{
flang = get_frame_language ();
if (!warned
warned = 1;
}
}
+
+ do_cleanups (cleanup);
}
-/* Read commands from `instream' and execute them
- until end of file or error reading instream. */
+/* Run execute_command for P and FROM_TTY. Capture its output into the
+ returned string, do not display it to the screen. BATCH_FLAG will be
+ temporarily set to true. */
-void
-command_loop (void)
+char *
+execute_command_to_string (char *p, int from_tty)
{
- struct cleanup *old_chain;
- char *command;
- int stdin_is_tty = ISATTY (stdin);
- long time_at_cmd_start;
-#ifdef HAVE_SBRK
- long space_at_cmd_start = 0;
-#endif
- extern int display_time;
- extern int display_space;
+ struct ui_file *str_file;
+ struct cleanup *cleanup;
+ char *retval;
- while (instream && !feof (instream))
- {
- if (window_hook && instream == stdin)
- (*window_hook) (instream, get_prompt ());
+ /* GDB_STDOUT should be better already restored during these
+ restoration callbacks. */
+ cleanup = set_batch_flag_and_make_cleanup_restore_page_info ();
- quit_flag = 0;
- if (instream == stdin && stdin_is_tty)
- reinitialize_more_filter ();
- old_chain = make_cleanup (null_cleanup, 0);
+ str_file = mem_fileopen ();
- /* Get a command-line. This calls the readline package. */
- command = command_line_input (instream == stdin ?
- get_prompt () : (char *) NULL,
- instream == stdin, "prompt");
- if (command == 0)
- return;
+ make_cleanup_ui_file_delete (str_file);
+ make_cleanup_restore_ui_file (&gdb_stdout);
+ make_cleanup_restore_ui_file (&gdb_stderr);
+ make_cleanup_restore_ui_file (&gdb_stdlog);
+ make_cleanup_restore_ui_file (&gdb_stdtarg);
+ make_cleanup_restore_ui_file (&gdb_stdtargerr);
- time_at_cmd_start = get_run_time ();
+ if (ui_out_redirect (uiout, str_file) < 0)
+ warning (_("Current output protocol does not support redirection"));
+ else
+ make_cleanup_ui_out_redirect_pop (uiout);
- if (display_space)
- {
-#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
- space_at_cmd_start = lim - lim_at_start;
-#endif
- }
+ gdb_stdout = str_file;
+ gdb_stderr = str_file;
+ gdb_stdlog = str_file;
+ gdb_stdtarg = str_file;
+ gdb_stdtargerr = str_file;
- execute_command (command, instream == stdin);
- /* Do any commands attached to breakpoint we stopped at. */
- bpstat_do_actions (&stop_bpstat);
- do_cleanups (old_chain);
+ execute_command (p, from_tty);
- if (display_time)
- {
- long cmd_time = get_run_time () - time_at_cmd_start;
+ retval = ui_file_xstrdup (str_file, NULL);
- printf_unfiltered (_("Command execution time: %ld.%06ld\n"),
- cmd_time / 1000000, cmd_time % 1000000);
- }
+ do_cleanups (cleanup);
- if (display_space)
- {
-#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
- long space_now = lim - lim_at_start;
- long space_diff = space_now - space_at_cmd_start;
-
- printf_unfiltered (_("Space used: %ld (%c%ld for this command)\n"),
- space_now,
- (space_diff >= 0 ? '+' : '-'),
- space_diff);
-#endif
- }
- }
+ return retval;
}
-/* Read commands from `instream' and execute them until end of file or
- error reading instream. This command loop doesnt care about any
- such things as displaying time and space usage. If the user asks
- for those, they won't work. */
+/* Read commands from `instream' and execute them
+ until end of file or error reading instream. */
+
void
-simplified_command_loop (char *(*read_input_func) (char *),
- void (*execute_command_func) (char *, int))
+command_loop (void)
{
struct cleanup *old_chain;
char *command;
while (instream && !feof (instream))
{
+ if (window_hook && instream == stdin)
+ (*window_hook) (instream, get_prompt ());
+
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
old_chain = make_cleanup (null_cleanup, 0);
- /* Get a command-line. */
- command = (*read_input_func) (instream == stdin ?
- get_prompt () : (char *) NULL);
-
+ /* Get a command-line. This calls the readline package. */
+ command = command_line_input (instream == stdin ?
+ get_prompt () : (char *) NULL,
+ instream == stdin, "prompt");
if (command == 0)
return;
- (*execute_command_func) (command, instream == stdin);
+ make_command_stats_cleanup (1);
+
+ execute_command (command, instream == stdin);
- /* Do any commands attached to breakpoint we stopped at. */
- bpstat_do_actions (&stop_bpstat);
+ /* Do any commands attached to breakpoint we are stopped at. */
+ bpstat_do_actions ();
do_cleanups (old_chain);
}
}
\f
+/* When nonzero, cause dont_repeat to do nothing. This should only be
+ set via prevent_dont_repeat. */
+
+static int suppress_dont_repeat = 0;
+
/* Commands call this if they do not want to be repeated by null lines. */
void
dont_repeat (void)
{
- if (server_command)
+ if (suppress_dont_repeat || server_command)
return;
/* If we aren't reading from standard input, we are saving the last
- thing read from stdin in line and don't want to delete it. Null lines
- won't repeat here in any case. */
+ thing read from stdin in line and don't want to delete it. Null
+ lines won't repeat here in any case. */
if (instream == stdin)
*line = 0;
}
+
+/* Prevent dont_repeat from working, and return a cleanup that
+ restores the previous state. */
+
+struct cleanup *
+prevent_dont_repeat (void)
+{
+ struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat);
+
+ suppress_dont_repeat = 1;
+ return result;
+}
+
\f
/* Read a line from the stream "instream" without command line editing.
/* NOTE 1999-04-29: This variable will be static again, once we modify
gdb to use the event loop as the default command loop and we merge
- event-top.c into this file, top.c */
+ event-top.c into this file, top.c. */
/* static */ int history_expansion_p;
show_history_filename (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-The filename in which to record the command history is \"%s\".\n"),
+ fprintf_filtered (file, _("The filename in which to record "
+ "the command history is \"%s\".\n"),
value);
}
/* This is like readline(), but it has some gdb-specific behavior.
- gdb can use readline in both the synchronous and async modes during
+ gdb may want readline in both the synchronous and async modes during
a single gdb invocation. At the ordinary top-level prompt we might
be using the async readline. That means we can't use
rl_pre_input_hook, since it doesn't work properly in async mode.
However, for a secondary prompt (" >", such as occurs during a
- `define'), gdb just calls readline() directly, running it in
- synchronous mode. So for operate-and-get-next to work in this
- situation, we have to switch the hooks around. That is what
- gdb_readline_wrapper is for. */
-char *
-gdb_readline_wrapper (char *prompt)
-{
- /* Set the hook that works in this case. */
- if (after_char_processing_hook)
- {
- rl_pre_input_hook = (Function *) after_char_processing_hook;
- after_char_processing_hook = NULL;
- }
-
- return readline (prompt);
-}
+ `define'), gdb wants a synchronous response.
+
+ We used to call readline() directly, running it in synchronous
+ mode. But mixing modes this way is not supported, and as of
+ readline 5.x it no longer works; the arrow keys come unbound during
+ the synchronous call. So we make a nested call into the event
+ loop. That's what gdb_readline_wrapper is for. */
+
+/* A flag set as soon as gdb_readline_wrapper_line is called; we can't
+ rely on gdb_readline_wrapper_result, which might still be NULL if
+ the user types Control-D for EOF. */
+static int gdb_readline_wrapper_done;
+
+/* The result of the current call to gdb_readline_wrapper, once a newline
+ is seen. */
+static char *gdb_readline_wrapper_result;
+
+/* Any intercepted hook. Operate-and-get-next sets this, expecting it
+ to be called after the newline is processed (which will redisplay
+ the prompt). But in gdb_readline_wrapper we will not get a new
+ prompt until the next call, or until we return to the event loop.
+ So we disable this hook around the newline and restore it before we
+ return. */
+static void (*saved_after_char_processing_hook) (void);
+
+/* This function is called when readline has seen a complete line of
+ text. */
-\f
-#ifdef STOP_SIGNAL
static void
-stop_sig (int signo)
+gdb_readline_wrapper_line (char *line)
{
-#if STOP_SIGNAL == SIGTSTP
- signal (SIGTSTP, SIG_DFL);
-#if HAVE_SIGPROCMASK
- {
- sigset_t zero;
+ gdb_assert (!gdb_readline_wrapper_done);
+ gdb_readline_wrapper_result = line;
+ gdb_readline_wrapper_done = 1;
- sigemptyset (&zero);
- sigprocmask (SIG_SETMASK, &zero, 0);
- }
-#elif HAVE_SIGSETMASK
- sigsetmask (0);
-#endif
- kill (getpid (), SIGTSTP);
- signal (SIGTSTP, stop_sig);
-#else
- signal (STOP_SIGNAL, stop_sig);
-#endif
- printf_unfiltered ("%s", get_prompt ());
- gdb_flush (gdb_stdout);
+ /* Prevent operate-and-get-next from acting too early. */
+ saved_after_char_processing_hook = after_char_processing_hook;
+ after_char_processing_hook = NULL;
- /* Forget about any previous command -- null line now will do nothing. */
- dont_repeat ();
+ /* Prevent parts of the prompt from being redisplayed if annotations
+ are enabled, and readline's state getting out of sync. */
+ if (async_command_editing_p)
+ rl_callback_handler_remove ();
}
-#endif /* STOP_SIGNAL */
-/* Initialize signal handlers. */
+struct gdb_readline_wrapper_cleanup
+ {
+ void (*handler_orig) (char *);
+ int already_prompted_orig;
+ };
+
static void
-float_handler (int signo)
+gdb_readline_wrapper_cleanup (void *arg)
{
- /* This message is based on ANSI C, section 4.7. Note that integer
- divide by zero causes this, so "float" is a misnomer. */
- signal (SIGFPE, float_handler);
- error (_("Erroneous arithmetic operation."));
+ struct gdb_readline_wrapper_cleanup *cleanup = arg;
+
+ rl_already_prompted = cleanup->already_prompted_orig;
+
+ gdb_assert (input_handler == gdb_readline_wrapper_line);
+ input_handler = cleanup->handler_orig;
+ gdb_readline_wrapper_result = NULL;
+ gdb_readline_wrapper_done = 0;
+
+ after_char_processing_hook = saved_after_char_processing_hook;
+ saved_after_char_processing_hook = NULL;
+
+ xfree (cleanup);
}
-static void
-do_nothing (int signo)
+char *
+gdb_readline_wrapper (char *prompt)
{
- /* Under System V the default disposition of a signal is reinstated after
- the signal is caught and delivered to an application process. On such
- systems one must restore the replacement signal handler if one wishes
- to continue handling the signal in one's program. On BSD systems this
- is not needed but it is harmless, and it simplifies the code to just do
- it unconditionally. */
- signal (signo, do_nothing);
+ struct cleanup *back_to;
+ struct gdb_readline_wrapper_cleanup *cleanup;
+ char *retval;
+
+ cleanup = xmalloc (sizeof (*cleanup));
+ cleanup->handler_orig = input_handler;
+ input_handler = gdb_readline_wrapper_line;
+
+ cleanup->already_prompted_orig = rl_already_prompted;
+
+ back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup);
+
+ /* Display our prompt and prevent double prompt display. */
+ display_gdb_prompt (prompt);
+ rl_already_prompted = 1;
+
+ if (after_char_processing_hook)
+ (*after_char_processing_hook) ();
+ gdb_assert (after_char_processing_hook == NULL);
+
+ /* gdb_do_one_event argument is unused. */
+ while (gdb_do_one_event (NULL) >= 0)
+ if (gdb_readline_wrapper_done)
+ break;
+
+ retval = gdb_readline_wrapper_result;
+ do_cleanups (back_to);
+ return retval;
}
+\f
/* The current saved history number from operate-and-get-next.
This is -1 if not valid. */
static int operate_saved_history = -1;
gdb_rl_operate_and_get_next_completion (void)
{
int delta = where_history () - operate_saved_history;
+
/* The `key' argument to rl_get_previous_history is ignored. */
rl_get_previous_history (delta, 0);
operate_saved_history = -1;
while (1)
{
- /* Make sure that all output has been output. Some machines may let
- you get away with leaving out some of the gdb_flush, but not all. */
+ /* Make sure that all output has been output. Some machines may
+ let you get away with leaving out some of the gdb_flush, but
+ not all. */
wrap_here ("");
gdb_flush (gdb_stdout);
gdb_flush (gdb_stderr);
}
p1 = rl;
/* Copy line. Don't copy null at end. (Leaves line alone
- if this was just a newline) */
+ if this was just a newline). */
while (*p1)
*p++ = *p1++;
if (expanded < 0)
{
xfree (history_value);
- return command_line_input (prompt_arg, repeat, annotation_suffix);
+ return command_line_input (prompt_arg, repeat,
+ annotation_suffix);
}
if (strlen (history_value) > linelength)
{
}
strcpy (linebuffer, history_value);
p = linebuffer + strlen (linebuffer);
- xfree (history_value);
}
+ xfree (history_value);
}
- /* If we just got an empty line, and that is supposed
- to repeat the previous command, return the value in the
- global buffer. */
+ /* If we just got an empty line, and that is supposed to repeat the
+ previous command, return the value in the global buffer. */
if (repeat && p == linebuffer)
return line;
for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++);
and remove the '#'. The kill ring is probably better, but some
people are in the habit of commenting things out. */
if (*p1 == '#')
- *p1 = '\0'; /* Found a comment. */
+ *p1 = '\0'; /* Found a comment. */
/* Save into global buffer if appropriate. */
if (repeat)
return linebuffer;
}
\f
-/* Print the GDB banner. */
+/* Print the GDB banner. */
void
print_gdb_version (struct ui_file *stream)
{
/* From GNU coding standards, first line is meant to be easy for a
program to parse, and is just canonical program name and version
- number, which starts after last space. */
+ number, which starts after last space. */
- fprintf_filtered (stream, "GNU gdb %s\n", version);
+ fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version);
- /* Second line is a copyright notice. */
+ /* Second line is a copyright notice. */
- fprintf_filtered (stream, "Copyright (C) 2006 Free Software Foundation, Inc.\n");
+ fprintf_filtered (stream,
+ "Copyright (C) 2011 Free Software Foundation, Inc.\n");
/* Following the copyright is a brief statement that the program is
free software, that users are free to copy and change it on
certain conditions, that it is covered by the GNU GPL, and that
- there is no warranty. */
+ there is no warranty. */
fprintf_filtered (stream, "\
-GDB is free software, covered by the GNU General Public License, and you are\n\
-welcome to change it and/or distribute copies of it under certain conditions.\n\
-Type \"show copying\" to see the conditions.\n\
-There is absolutely no warranty for GDB. Type \"show warranty\" for details.\n");
+License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\
+\nThis is free software: you are free to change and redistribute it.\n\
+There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\
+and \"show warranty\" for details.\n");
- /* After the required info we print the configuration information. */
+ /* After the required info we print the configuration information. */
fprintf_filtered (stream, "This GDB was configured as \"");
if (strcmp (host_name, target_name) != 0)
{
- fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name);
+ fprintf_filtered (stream, "--host=%s --target=%s",
+ host_name, target_name);
}
else
{
fprintf_filtered (stream, "%s", host_name);
}
fprintf_filtered (stream, "\".");
+
+ if (REPORT_BUGS_TO[0])
+ {
+ fprintf_filtered (stream,
+ _("\nFor bug reporting instructions, please see:\n"));
+ fprintf_filtered (stream, "%s.", REPORT_BUGS_TO);
+ }
}
\f
/* get_prompt: access method for the GDB prompt string. */
set_prompt (char *s)
{
/* ??rehrauer: I don't know why this fails, since it looks as though
- assignments to prompt are wrapped in calls to savestring...
+ assignments to prompt are wrapped in calls to xstrdup...
if (prompt != NULL)
- xfree (prompt);
+ xfree (prompt);
*/
- PROMPT (0) = savestring (s, strlen (s));
+ PROMPT (0) = xstrdup (s);
}
\f
+struct qt_args
+{
+ char *args;
+ int from_tty;
+};
+
+/* Callback for iterate_over_inferiors. Kills or detaches the given
+ inferior, depending on how we originally gained control of it. */
+
+static int
+kill_or_detach (struct inferior *inf, void *args)
+{
+ struct qt_args *qt = args;
+ struct thread_info *thread;
+
+ if (inf->pid == 0)
+ return 0;
+
+ thread = any_thread_of_process (inf->pid);
+ if (thread != NULL)
+ {
+ switch_to_thread (thread->ptid);
+
+ /* Leave core files alone. */
+ if (target_has_execution)
+ {
+ if (inf->attach_flag)
+ target_detach (qt->args, qt->from_tty);
+ else
+ target_kill ();
+ }
+ }
+
+ return 0;
+}
+
+/* Callback for iterate_over_inferiors. Prints info about what GDB
+ will do to each inferior on a "quit". ARG points to a struct
+ ui_out where output is to be collected. */
+
+static int
+print_inferior_quit_action (struct inferior *inf, void *arg)
+{
+ struct ui_file *stb = arg;
+
+ if (inf->pid == 0)
+ return 0;
+
+ if (inf->attach_flag)
+ fprintf_filtered (stb,
+ _("\tInferior %d [%s] will be detached.\n"), inf->num,
+ target_pid_to_str (pid_to_ptid (inf->pid)));
+ else
+ fprintf_filtered (stb,
+ _("\tInferior %d [%s] will be killed.\n"), inf->num,
+ target_pid_to_str (pid_to_ptid (inf->pid)));
+
+ return 0;
+}
+
/* If necessary, make the user confirm that we should quit. Return
non-zero if we should quit, zero if we shouldn't. */
int
quit_confirm (void)
{
- if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
- {
- char *s;
-
- /* This is something of a hack. But there's no reliable way to
- see if a GUI is running. The `use_windows' variable doesn't
- cut it. */
- if (deprecated_init_ui_hook)
- s = "A debugging session is active.\nDo you still want to close the debugger?";
- else if (attach_flag)
- s = "The program is running. Quit anyway (and detach it)? ";
- else
- s = "The program is running. Exit anyway? ";
+ struct ui_file *stb;
+ struct cleanup *old_chain;
+ char *str;
+ int qr;
- if (!query ("%s", s))
- return 0;
+ /* Don't even ask if we're only debugging a core file inferior. */
+ if (!have_live_inferiors ())
+ return 1;
+
+ /* Build the query string as a single string. */
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
+
+ /* This is something of a hack. But there's no reliable way to see
+ if a GUI is running. The `use_windows' variable doesn't cut
+ it. */
+ if (deprecated_init_ui_hook)
+ fprintf_filtered (stb, _("A debugging session is active.\n"
+ "Do you still want to close the debugger?"));
+ else
+ {
+ fprintf_filtered (stb, _("A debugging session is active.\n\n"));
+ iterate_over_inferiors (print_inferior_quit_action, stb);
+ fprintf_filtered (stb, _("\nQuit anyway? "));
}
- return 1;
+ str = ui_file_xstrdup (stb, NULL);
+ make_cleanup (xfree, str);
+
+ qr = query ("%s", str);
+ do_cleanups (old_chain);
+ return qr;
}
/* Helper routine for quit_force that requires error handling. */
-struct qt_args
-{
- char *args;
- int from_tty;
-};
-
static int
quit_target (void *arg)
{
struct qt_args *qt = (struct qt_args *)arg;
- if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
- {
- if (attach_flag)
- target_detach (qt->args, qt->from_tty);
- else
- target_kill ();
- }
+ /* Kill or detach all inferiors. */
+ iterate_over_inferiors (kill_or_detach, qt);
- /* UDI wants this, to kill the TIP. */
- target_close (¤t_target, 1);
+ /* Give all pushed targets a chance to do minimal cleanup, and pop
+ them all out. */
+ pop_all_targets (1);
/* Save the history information if it is appropriate to do so. */
if (write_history_p && history_filename)
write_history (history_filename);
- do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before exiting */
-
+ do_final_cleanups (ALL_CLEANUPS); /* Do any final cleanups before
+ exiting. */
return 0;
}
struct qt_args qt;
/* An optional expression may be used to cause gdb to terminate with the
- value of that expression. */
+ value of that expression. */
if (args)
{
struct value *val = parse_and_eval (args);
int
input_from_terminal_p (void)
{
+ if (batch_flag)
+ return 0;
+
if (gdb_has_a_terminal () && instream == stdin)
return 1;
static void
dont_repeat_command (char *ignored, int from_tty)
{
- *line = 0; /* Can't call dont_repeat here because we're not
- necessarily reading from stdin. */
+ *line = 0; /* Can't call dont_repeat here because we're
+ not necessarily reading from stdin. */
}
\f
/* Functions to manipulate command line editing control variables. */
void
set_history (char *args, int from_tty)
{
- printf_unfiltered (_("\"set history\" must be followed by the name of a history subcommand.\n"));
+ printf_unfiltered (_("\"set history\" must be followed "
+ "by the name of a history subcommand.\n"));
help_list (sethistlist, "set history ", -1, gdb_stdout);
}
cmd_show_list (showhistlist, from_tty, "");
}
-int info_verbose = 0; /* Default verbose msgs off */
+int info_verbose = 0; /* Default verbose msgs off. */
/* Called by do_setshow_command. An elaborate joke. */
void
struct cmd_list_element *showcmd;
showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
+ gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS);
if (info_verbose)
{
}
/* Init the history buffer. Note that we are called after the init file(s)
- * have been read so that the user can change the history file via his
- * .gdbinit file (for instance). The GDBHISTFILE environment variable
- * overrides all of this.
- */
+ have been read so that the user can change the history file via his
+ .gdbinit file (for instance). The GDBHISTFILE environment variable
+ overrides all of this. */
void
init_history (void)
tmpenv = getenv ("GDBHISTFILE");
if (tmpenv)
- history_filename = savestring (tmpenv, strlen (tmpenv));
+ history_filename = xstrdup (tmpenv);
else if (!history_filename)
{
/* We include the current directory so that if the user changes
show_async_command_editing_p (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Editing of command lines as they are typed is %s.\n"),
+ fprintf_filtered (file, _("Editing of command lines as "
+ "they are typed is %s.\n"),
value);
}
show_exec_done_display_p (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Notification of completion for asynchronous execution commands is %s.\n"),
+ fprintf_filtered (file, _("Notification of completion for "
+ "asynchronous execution commands is %s.\n"),
value);
}
static void
init_main (void)
{
- struct cmd_list_element *c;
-
/* initialize the prompt stack to a simple "(gdb) " prompt or to
whatever the DEFAULT_PROMPT is. */
the_prompts.top = 0;
PREFIX (0) = "";
- PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
+ PROMPT (0) = xstrdup (DEFAULT_PROMPT);
SUFFIX (0) = "";
/* Set things up for annotation_level > 1, if the user ever decides
to use it. */
async_annotation_suffix = "prompt";
/* Set the variable associated with the setshow prompt command. */
- new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0)));
+ new_async_prompt = xstrdup (PROMPT (0));
/* If gdb was started with --annotate=2, this is equivalent to the
user entering the command 'set annotate 2' at the gdb prompt, so
write_history_p = 0;
/* Setup important stuff for command line editing. */
+ rl_completion_word_break_hook = gdb_completion_word_break_characters;
rl_completion_entry_function = readline_line_completion_function;
rl_completer_word_break_characters = default_word_break_characters ();
rl_completer_quote_characters = get_gdb_completer_quote_characters ();
rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15);
add_setshow_string_cmd ("prompt", class_support,
- &new_async_prompt, _("\
-Set gdb's prompt"), _("\
-Show gdb's prompt"), NULL,
- set_async_prompt,
+ &new_async_prompt,
+ _("Set gdb's prompt"),
+ _("Show gdb's prompt"),
+ NULL, set_async_prompt,
show_new_async_prompt,
&setlist, &showlist);
add_com ("dont-repeat", class_support, dont_repeat_command, _("\
-Don't repeat this command.\n\
-Primarily used inside of user-defined commands that should not be repeated when\n\
+Don't repeat this command.\nPrimarily \
+used inside of user-defined commands that should not be repeated when\n\
hitting return."));
add_setshow_boolean_cmd ("editing", class_support,
NULL,
show_exec_done_display_p,
&setlist, &showlist);
+
+ add_setshow_filename_cmd ("data-directory", class_maintenance,
+ &gdb_datadir, _("Set GDB's data directory."),
+ _("Show GDB's data directory."),
+ _("\
+When set, GDB uses the specified path to search for data files."),
+ NULL, NULL,
+ &setlist,
+ &showlist);
}
void
if (pre_init_ui_hook)
pre_init_ui_hook ();
- /* Run the init function of each source file */
-
- getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
- current_directory = gdb_dirbuf;
+ /* Run the init function of each source file. */
#ifdef __MSDOS__
/* Make sure we return to the original directory upon exit, come
make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory));
#endif
- init_cmd_lists (); /* This needs to be done first */
- initialize_targets (); /* Setup target_terminal macros for utils.c */
- initialize_utils (); /* Make errors and warnings possible */
+ init_cmd_lists (); /* This needs to be done first. */
+ initialize_targets (); /* Setup target_terminal macros for utils.c. */
+ initialize_utils (); /* Make errors and warnings possible. */
+
+ /* Here is where we call all the _initialize_foo routines. */
initialize_all_files ();
+
+ /* This creates the current_program_space. Do this after all the
+ _initialize_foo routines have had a chance to install their
+ per-sspace data keys. Also do this before
+ initialize_current_architecture is called, because it accesses
+ exec_bfd of the current program space. */
+ initialize_progspace ();
+ initialize_inferiors ();
initialize_current_architecture ();
init_cli_cmds();
- init_main (); /* But that omits this file! Do it now */
+ init_main (); /* But that omits this file! Do it now. */
initialize_stdin_serial ();
async_init_signals ();
- /* We need a default language for parsing expressions, so simple things like
- "set width 0" won't fail if no language is explicitly set in a config file
- or implicitly set by reading an executable during startup. */
+ /* We need a default language for parsing expressions, so simple
+ things like "set width 0" won't fail if no language is explicitly
+ set in a config file or implicitly set by reading an executable
+ during startup. */
set_language (language_c);
- expected_language = current_language; /* don't warn about the change. */
+ expected_language = current_language; /* Don't warn about the change. */
- /* Allow another UI to initialize. If the UI fails to initialize,
+ /* Allow another UI to initialize. If the UI fails to initialize,
and it wants GDB to revert to the CLI, it should clear
deprecated_init_ui_hook. */
if (deprecated_init_ui_hook)
deprecated_init_ui_hook (argv0);
+
+#ifdef HAVE_PYTHON
+ /* Python initialization can require various commands to be
+ installed. For example "info pretty-printer" needs the "info"
+ prefix to be installed. Keep things simple and just do final
+ python initialization here. */
+ finish_python_initialization ();
+#endif
}
projects / deliverable / binutils-gdb.git / blobdiff