/* 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, 2007,
- 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdbcmd.h"
-#include "call-cmds.h"
#include "cli/cli-cmds.h"
#include "cli/cli-script.h"
#include "cli/cli-setshow.h"
#include "exceptions.h"
#include <signal.h>
#include "target.h"
+#include "target-dcache.h"
#include "breakpoint.h"
#include "gdbtypes.h"
#include "expression.h"
#include "gdbthread.h"
#include "python/python.h"
#include "interps.h"
+#include "observer.h"
+#include "maint.h"
+#include "filenames.h"
/* readline include files. */
#include "readline/readline.h"
#include <sys/types.h>
#include "event-top.h"
-#include "gdb_string.h"
-#include "gdb_stat.h"
+#include <string.h>
+#include <sys/stat.h>
#include <ctype.h>
#include "ui-out.h"
#include "cli-out.h"
+#include "tracepoint.h"
+
+extern void initialize_all_files (void);
#define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
#define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
#define DEFAULT_PROMPT "(gdb) "
#endif
-/* Initialization file name for gdb. This is overridden in some configs. */
+/* Initialization file name for gdb. This is host-dependent. */
-#ifndef PATH_MAX
-# ifdef FILENAME_MAX
-# define PATH_MAX FILENAME_MAX
-# else
-# define PATH_MAX 512
-# endif
-#endif
-
-#ifndef GDBINIT_FILENAME
-#define GDBINIT_FILENAME ".gdbinit"
-#endif
-char gdbinit[PATH_MAX + 1] = GDBINIT_FILENAME;
+const char gdbinit[] = GDBINIT;
int inhibit_gdbinit = 0;
extern char lang_frame_mismatch_warn[]; /* language.c */
-/* Flag for whether we want all the "from_tty" gubbish printed. */
+/* Flag for whether we want to confirm potentially dangerous
+ operations. Default is yes. */
+
+int confirm = 1;
-int caution = 1; /* Default is yes, sigh. */
static void
-show_caution (struct ui_file *file, int from_tty,
+show_confirm (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("Whether to confirm potentially "
void (*window_hook) (FILE *, char *);
-int epoch_interface;
-int xgdb_verbose;
-
/* Buffer used for reading command lines, and the size
allocated for it so far. */
is issuing commands too. */
int server_command;
-/* 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. */
-
-int baud_rate = -1;
-
/* Timeout limit for response from target. */
/* The default value has been changed many times over the years. It
int (*deprecated_ui_loop_hook) (int);
-/* Called instead of command_loop at top level. Can be invoked via
- throw_exception(). */
-
-void (*deprecated_command_loop_hook) (void);
-
/* Called from print_frame_info to list the line we stopped in. */
/* 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. */
-/* static */ int
-quit_cover (void *s)
+/* static */ void
+quit_cover (void)
{
- caution = 0; /* Throw caution to the wind -- we're exiting.
- This prevents asking the user dumb
- questions. */
+ /* Stop asking user for confirmation --- we're exiting. This
+ prevents asking the user dumb questions. */
+ confirm = 0;
quit_command ((char *) 0, 0);
- return 0;
}
#endif /* defined SIGHUP */
\f
void (*pre_init_ui_hook) (void);
#ifdef __MSDOS__
-void
+static void
do_chdir_cleanup (void *old_dir)
{
chdir (old_dir);
return cleanup;
}
+/* Tell the user if the language has changed (except first time) after
+ executing a command. */
+
+void
+check_frame_language_change (void)
+{
+ static int warned = 0;
+
+ /* First make sure that a new frame has been selected, in case the
+ command or the hooks changed the program state. */
+ deprecated_safe_get_selected_frame ();
+ if (current_language != expected_language)
+ {
+ if (language_mode == language_mode_auto && info_verbose)
+ {
+ language_info (1); /* Print what changed. */
+ }
+ warned = 0;
+ }
+
+ /* 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. */
+ /* FIXME: This should be cacheing the frame and only running when
+ the frame changes. */
+
+ if (has_stack_frames ())
+ {
+ enum language flang;
+
+ flang = get_frame_language ();
+ if (!warned
+ && flang != language_unknown
+ && flang != current_language->la_language)
+ {
+ printf_filtered ("%s\n", lang_frame_mismatch_warn);
+ warned = 1;
+ }
+ }
+}
+
/* Execute the line P as a command, in the current user context.
Pass FROM_TTY as second argument to the defining function. */
{
struct cleanup *cleanup_if_error, *cleanup;
struct cmd_list_element *c;
- enum language flang;
- static int warned = 0;
char *line;
cleanup_if_error = make_bpstat_clear_actions_cleanup ();
if (p == NULL)
{
do_cleanups (cleanup);
+ discard_cleanups (cleanup_if_error);
return;
}
p++;
if (*p)
{
+ const char *cmd = p;
char *arg;
line = p;
/* If trace-commands is set then this will print this command. */
print_command_trace (p);
- c = lookup_cmd (&p, cmdlist, "", 0, 1);
+ c = lookup_cmd (&cmd, cmdlist, "", 0, 1);
+ p = (char *) cmd;
/* Pass null arg rather than an empty one. */
arg = *p ? p : 0;
execute_cmd_pre_hook (c);
if (c->flags & DEPRECATED_WARN_USER)
- deprecated_cmd_warning (&line);
+ deprecated_cmd_warning (line);
- if (c->class == class_user)
+ /* c->user_commands would be NULL in the case of a python command. */
+ if (c->class == class_user && c->user_commands)
execute_user_command (c, arg);
- else if (c->type == set_cmd || c->type == show_cmd)
- do_setshow_command (arg, from_tty & caution, c);
+ else if (c->type == set_cmd)
+ do_set_command (arg, from_tty, c);
+ else if (c->type == show_cmd)
+ do_show_command (arg, from_tty, c);
else if (!cmd_func_p (c))
error (_("That is not a command, just a help topic."));
else if (deprecated_call_command_hook)
- deprecated_call_command_hook (c, arg, from_tty & caution);
+ deprecated_call_command_hook (c, arg, from_tty);
else
- cmd_func (c, arg, from_tty & caution);
+ cmd_func (c, arg, from_tty);
/* If the interpreter is in sync mode (we're running a user
command's list, running command hooks or similars), and we
}
- /* 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 && info_verbose)
- {
- language_info (1); /* Print what changed. */
- }
- warned = 0;
- }
-
- /* 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. */
- /* FIXME: This should be cacheing the frame and only running when
- the frame changes. */
-
- if (has_stack_frames ())
- {
- flang = get_frame_language ();
- if (!warned
- && flang != language_unknown
- && flang != current_language->la_language)
- {
- printf_filtered ("%s\n", lang_frame_mismatch_warn);
- warned = 1;
- }
- }
+ check_frame_language_change ();
do_cleanups (cleanup);
discard_cleanups (cleanup_if_error);
if (window_hook && instream == stdin)
(*window_hook) (instream, get_prompt ());
- quit_flag = 0;
+ clear_quit_flag ();
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
old_chain = make_cleanup (null_cleanup, 0);
value);
}
-static int history_size;
+/* The variable associated with the "set/show history size"
+ command. */
+static unsigned int history_size_setshow_var;
+
static void
show_history_size (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
/* Find the current line, and find the next line to use. */
where = where_history();
- /* FIXME: kettenis/20020817: max_input_history is renamed into
- history_max_entries in readline-4.2. When we do a new readline
- import, we should probably change it here too, even though
- readline maintains backwards compatibility for now by still
- defining max_input_history. */
- if ((history_is_stifled () && (history_length >= max_input_history)) ||
- (where >= history_length - 1))
+ if ((history_is_stifled () && (history_length >= history_max_entries))
+ || (where >= history_length - 1))
operate_saved_history = where;
else
operate_saved_history = where + 1;
/* Control-C quits instantly if typed while in this loop
since it should not wait until the user types a newline. */
immediate_quit++;
+ QUIT;
#ifdef STOP_SIGNAL
if (job_control)
signal (STOP_SIGNAL, handle_stop_sig);
*p = 0;
/* Add line to history if appropriate. */
- if (instream == stdin
- && ISATTY (stdin) && *linebuffer)
+ if (*linebuffer && input_from_terminal_p ())
add_history (linebuffer);
/* Note: lines consisting solely of comments are added to the command
/* Second line is a copyright notice. */
fprintf_filtered (stream,
- "Copyright (C) 2011 Free Software Foundation, Inc.\n");
+ "Copyright (C) 2014 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
{
fprintf_filtered (stream, "%s", host_name);
}
- fprintf_filtered (stream, "\".");
+ fprintf_filtered (stream, "\".\n\
+Type \"show configuration\" for configuration details.");
if (REPORT_BUGS_TO[0])
{
- fprintf_filtered (stream,
+ fprintf_filtered (stream,
_("\nFor bug reporting instructions, please see:\n"));
- fprintf_filtered (stream, "%s.", REPORT_BUGS_TO);
+ fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO);
}
+ fprintf_filtered (stream,
+ _("Find the GDB manual and other documentation \
+resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n"));
+ fprintf_filtered (stream, _("For help, type \"help\".\n"));
+ fprintf_filtered (stream, _("Type \"apropos word\" to search for \
+commands related to \"word\"."));
+}
+
+/* Print the details of GDB build-time configuration. */
+void
+print_gdb_configuration (struct ui_file *stream)
+{
+ fprintf_filtered (stream, _("\
+This GDB was configured as follows:\n\
+ configure --host=%s --target=%s\n\
+"), host_name, target_name);
+ fprintf_filtered (stream, _("\
+ --with-auto-load-dir=%s\n\
+ --with-auto-load-safe-path=%s\n\
+"), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH);
+#if HAVE_LIBEXPAT
+ fprintf_filtered (stream, _("\
+ --with-expat\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-expat\n\
+"));
+#endif
+ if (GDB_DATADIR[0])
+ fprintf_filtered (stream, _("\
+ --with-gdb-datadir=%s%s\n\
+"), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : "");
+#ifdef ICONV_BIN
+ fprintf_filtered (stream, _("\
+ --with-iconv-bin=%s%s\n\
+"), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : "");
+#endif
+ if (JIT_READER_DIR[0])
+ fprintf_filtered (stream, _("\
+ --with-jit-reader-dir=%s%s\n\
+"), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : "");
+#if HAVE_LIBUNWIND_IA64_H
+ fprintf_filtered (stream, _("\
+ --with-libunwind-ia64\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-libunwind-ia64\n\
+"));
+#endif
+#if HAVE_LIBLZMA
+ fprintf_filtered (stream, _("\
+ --with-lzma\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-lzma\n\
+"));
+#endif
+#ifdef WITH_PYTHON_PATH
+ fprintf_filtered (stream, _("\
+ --with-python=%s%s\n\
+"), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : "");
+#endif
+#ifdef RELOC_SRCDIR
+ fprintf_filtered (stream, _("\
+ --with-relocated-sources=%s\n\
+"), RELOC_SRCDIR);
+#endif
+ if (DEBUGDIR[0])
+ fprintf_filtered (stream, _("\
+ --with-separate-debug-dir=%s%s\n\
+"), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : "");
+ if (TARGET_SYSTEM_ROOT[0])
+ fprintf_filtered (stream, _("\
+ --with-sysroot=%s%s\n\
+"), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : "");
+ if (SYSTEM_GDBINIT[0])
+ fprintf_filtered (stream, _("\
+ --with-system-gdbinit=%s%s\n\
+"), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : "");
+#if HAVE_ZLIB_H
+ fprintf_filtered (stream, _("\
+ --with-zlib\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-zlib\n\
+"));
+#endif
+#if HAVE_LIBBABELTRACE
+ fprintf_filtered (stream, _("\
+ --with-babeltrace\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-babeltrace\n\
+"));
+#endif
+ /* We assume "relocatable" will be printed at least once, thus we always
+ print this text. It's a reasonably safe assumption for now. */
+ fprintf_filtered (stream, _("\n\
+(\"Relocatable\" means the directory can be moved with the GDB installation\n\
+tree, and GDB will still find it.)\n\
+"));
}
\f
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? "));
- }
+ fprintf_filtered (stb, _("A debugging session is active.\n\n"));
+ iterate_over_inferiors (print_inferior_quit_action, stb);
+ fprintf_filtered (stb, _("\nQuit anyway? "));
str = ui_file_xstrdup (stb, NULL);
make_cleanup (xfree, str);
return qr;
}
-/* Helper routine for quit_force that requires error handling. */
-
-static int
-quit_target (void *arg)
-{
- struct qt_args *qt = (struct qt_args *)arg;
-
- /* Kill or detach all inferiors. */
- iterate_over_inferiors (kill_or_detach, qt);
-
- /* 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. */
- return 0;
-}
-
/* Quit without asking for confirmation. */
void
{
int exit_code = 0;
struct qt_args qt;
+ volatile struct gdb_exception ex;
/* An optional expression may be used to cause gdb to terminate with the
value of that expression. */
qt.args = args;
qt.from_tty = from_tty;
+ /* Wrappers to make the code below a bit more readable. */
+#define DO_TRY \
+ TRY_CATCH (ex, RETURN_MASK_ALL)
+
+#define DO_PRINT_EX \
+ if (ex.reason < 0) \
+ exception_print (gdb_stderr, ex)
+
/* We want to handle any quit errors and exit regardless. */
- catch_errors (quit_target, &qt,
- "Quitting: ", RETURN_MASK_ALL);
+
+ /* Get out of tfind mode, and kill or detach all inferiors. */
+ DO_TRY
+ {
+ disconnect_tracing ();
+ iterate_over_inferiors (kill_or_detach, &qt);
+ }
+ DO_PRINT_EX;
+
+ /* Give all pushed targets a chance to do minimal cleanup, and pop
+ them all out. */
+ DO_TRY
+ {
+ pop_all_targets ();
+ }
+ DO_PRINT_EX;
+
+ /* Save the history information if it is appropriate to do so. */
+ DO_TRY
+ {
+ if (write_history_p && history_filename
+ && input_from_terminal_p ())
+ write_history (history_filename);
+ }
+ DO_PRINT_EX;
+
+ /* Do any final cleanups before exiting. */
+ DO_TRY
+ {
+ do_final_cleanups (all_cleanups ());
+ }
+ DO_PRINT_EX;
exit (exit_code);
}
Relative to history_base. */
static int num = 0;
- /* The first command in the history which doesn't exist (i.e. one more
- than the number of the last command). Relative to history_base. */
- int hist_len;
-
/* Print out some of the commands from the command history. */
- /* First determine the length of the history list. */
- hist_len = history_size;
- for (offset = 0; offset < history_size; offset++)
- {
- if (!history_get (history_base + offset))
- {
- hist_len = offset;
- break;
- }
- }
if (args)
{
/* "show commands" means print the last Hist_print commands. */
else
{
- num = hist_len - Hist_print;
+ num = history_length - Hist_print;
}
if (num < 0)
/* If there are at least Hist_print commands, we want to display the last
Hist_print rather than, say, the last 6. */
- if (hist_len - num < Hist_print)
+ if (history_length - num < Hist_print)
{
- num = hist_len - Hist_print;
+ num = history_length - Hist_print;
if (num < 0)
num = 0;
}
- for (offset = num; offset < num + Hist_print && offset < hist_len; offset++)
+ for (offset = num;
+ offset < num + Hist_print && offset < history_length;
+ offset++)
{
printf_filtered ("%5d %s\n", history_base + offset,
(history_get (history_base + offset))->line);
static void
set_history_size_command (char *args, int from_tty, struct cmd_list_element *c)
{
- if (history_size == INT_MAX)
- unstifle_history ();
- else if (history_size >= 0)
- stifle_history (history_size);
- else
+ /* Readline's history interface works with 'int', so it can only
+ handle history sizes up to INT_MAX. The command itself is
+ uinteger, so UINT_MAX means "unlimited", but we only get that if
+ the user does "set history size 0" -- "set history size <UINT_MAX>"
+ throws out-of-range. */
+ if (history_size_setshow_var > INT_MAX
+ && history_size_setshow_var != UINT_MAX)
{
- history_size = INT_MAX;
- error (_("History size must be non-negative"));
+ unsigned int new_value = history_size_setshow_var;
+
+ /* Restore previous value before throwing. */
+ if (history_is_stifled ())
+ history_size_setshow_var = history_max_entries;
+ else
+ history_size_setshow_var = UINT_MAX;
+
+ error (_("integer %u out of range"), new_value);
}
+
+ /* Commit the new value to readline's history. */
+ if (history_size_setshow_var == UINT_MAX)
+ unstifle_history ();
+ else
+ stifle_history (history_size_setshow_var);
}
void
void
set_verbose (char *args, int from_tty, struct cmd_list_element *c)
{
- char *cmdname = "verbose";
+ const char *cmdname = "verbose";
struct cmd_list_element *showcmd;
showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
tmpenv = getenv ("HISTSIZE");
if (tmpenv)
- history_size = atoi (tmpenv);
- else if (!history_size)
- history_size = 256;
+ {
+ int var;
+
+ var = atoi (tmpenv);
+ if (var < 0)
+ {
+ /* Prefer ending up with no history rather than overflowing
+ readline's history interface, which uses signed 'int'
+ everywhere. */
+ var = 0;
+ }
+
+ history_size_setshow_var = var;
+ }
+ /* If the init file hasn't set a size yet, pick the default. */
+ else if (history_size_setshow_var == 0)
+ history_size_setshow_var = 256;
- stifle_history (history_size);
+ /* Note that unlike "set history size 0", "HISTSIZE=0" really sets
+ the history size to 0... */
+ stifle_history (history_size_setshow_var);
tmpenv = getenv ("GDBHISTFILE");
if (tmpenv)
"asynchronous execution commands is %s.\n"),
value);
}
+
+/* "set" command for the gdb_datadir configuration variable. */
+
+static void
+set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c)
+{
+ observer_notify_gdb_datadir_changed ();
+}
+
+static void
+set_history_filename (char *args, int from_tty, struct cmd_list_element *c)
+{
+ /* We include the current directory so that if the user changes
+ directories the file written will be the same as the one
+ that was read. */
+ if (!IS_ABSOLUTE_PATH (history_filename))
+ history_filename = reconcat (history_filename, current_directory, "/",
+ history_filename, (char *) NULL);
+}
+
static void
init_main (void)
{
show_write_history_p,
&sethistlist, &showhistlist);
- add_setshow_integer_cmd ("size", no_class, &history_size, _("\
+ add_setshow_uinteger_cmd ("size", no_class, &history_size_setshow_var, _("\
Set the size of the command history,"), _("\
Show the size of the command history,"), _("\
-ie. the number of previous commands to keep a record of."),
- set_history_size_command,
- show_history_size,
- &sethistlist, &showhistlist);
+ie. the number of previous commands to keep a record of.\n\
+If set to \"unlimited\", the number of commands kept in the history\n\
+list is unlimited. This defaults to the value of the environment\n\
+variable \"HISTSIZE\", or to 256 if this variable is not set."),
+ set_history_size_command,
+ show_history_size,
+ &sethistlist, &showhistlist);
add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\
Set the filename in which to record the command history"), _("\
Show the filename in which to record the command history"), _("\
(the list of previous commands of which a record is kept)."),
- NULL,
+ set_history_filename,
show_history_filename,
&sethistlist, &showhistlist);
- add_setshow_boolean_cmd ("confirm", class_support, &caution, _("\
+ add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\
Set whether to confirm potentially dangerous operations."), _("\
Show whether to confirm potentially dangerous operations."), NULL,
NULL,
- show_caution,
+ show_confirm,
&setlist, &showlist);
add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\
_("Show GDB's data directory."),
_("\
When set, GDB uses the specified path to search for data files."),
- NULL, NULL,
+ set_gdb_datadir, NULL,
&setlist,
&showlist);
}
initialize_inferiors ();
initialize_current_architecture ();
init_cli_cmds();
+ initialize_event_loop ();
init_main (); /* But that omits this file! Do it now. */
initialize_stdin_serial ();
projects / deliverable / binutils-gdb.git / blobdiff