/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "expression.h"
#include "value.h"
#include "language.h"
-#include "terminal.h" /* For job_control. */
+#include "terminal.h"
+#include "gdbsupport/job-control.h"
#include "annotate.h"
#include "completer.h"
#include "top.h"
-#include "version.h"
+#include "gdbsupport/version.h"
#include "serial.h"
-#include "doublest.h"
#include "main.h"
#include "event-loop.h"
#include "gdbthread.h"
#include "extension.h"
#include "interps.h"
-#include "observer.h"
+#include "observable.h"
#include "maint.h"
#include "filenames.h"
#include "frame.h"
-#include "buffer.h"
+#include "gdbsupport/buffer.h"
#include "gdb_select.h"
+#include "gdbsupport/scope-exit.h"
+#include "gdbarch.h"
+#include "gdbsupport/pathstuff.h"
/* readline include files. */
#include "readline/readline.h"
#define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
#define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix
-/* Default command line prompt. This is overriden in some configs. */
+/* Default command line prompt. This is overridden in some configs. */
#ifndef DEFAULT_PROMPT
#define DEFAULT_PROMPT "(gdb) "
#endif
-/* Generate a function that exports a pointer to a field of the
- current UI. */
+struct ui_file **
+current_ui_gdb_stdout_ptr ()
+{
+ return ¤t_ui->m_gdb_stdout;
+}
-#define gen_ret_current_ui_field_ptr(type, name) \
-type * \
-current_ui_## name ## _ptr (void) \
-{ \
- return ¤t_ui->m_ ## name; \
+struct ui_file **
+current_ui_gdb_stdin_ptr ()
+{
+ return ¤t_ui->m_gdb_stdin;
}
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr)
-gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog)
-gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout)
+struct ui_file **
+current_ui_gdb_stderr_ptr ()
+{
+ return ¤t_ui->m_gdb_stderr;
+}
-/* Initialization file name for gdb. This is host-dependent. */
+struct ui_file **
+current_ui_gdb_stdlog_ptr ()
+{
+ return ¤t_ui->m_gdb_stdlog;
+}
-const char gdbinit[] = GDBINIT;
+struct ui_out **
+current_ui_current_uiout_ptr ()
+{
+ return ¤t_ui->m_current_uiout;
+}
int inhibit_gdbinit = 0;
-extern char lang_frame_mismatch_warn[]; /* language.c */
-
/* Flag for whether we want to confirm potentially dangerous
operations. Default is yes. */
-int confirm = 1;
+bool confirm = true;
static void
show_confirm (struct ui_file *file, int from_tty,
value);
}
-/* Flag to indicate whether a user defined command is currently running. */
-
-int in_user_command;
-
/* Current working directory. */
char *current_directory;
-/* The directory name is actually stored here (usually). */
-char gdb_dirbuf[1024];
-
/* The last command line executed on the console. Used for command
- repetitions. */
-char *saved_command_line;
+ repetitions when the user enters an empty line. */
+
+static char *saved_command_line;
+
+/* If not NULL, the arguments that should be passed if
+ saved_command_line is repeated. */
+
+static const char *repeat_arguments;
+
+/* The previous last command line executed on the console. Used for command
+ repetitions when a command wants to relaunch the previously launched
+ command. We need this as when a command is running, saved_command_line
+ already contains the line of the currently executing command. */
+
+char *previous_saved_command_line;
+
+/* If not NULL, the arguments that should be passed if the
+ previous_saved_command_line is repeated. */
+
+static const char *previous_repeat_arguments;
/* Nonzero if the current command is modified by "server ". This
affects things like recording into the command history, commands
/* 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
+/* 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
to sit and wait, so it was changed to 2 seconds. That was thought
- to be plenty unless the connection was going through some terminal
+ to be plenty unless the connection was going through some terminal
server or multiplexer or other form of hairy serial connection.
- In mid-1996, remote_timeout was moved from remote.c to top.c and
+ In mid-1996, remote_timeout was moved from remote.c to top.c and
it began being used in other remote-* targets. It appears that the
default was changed to 20 seconds at that time, perhaps because the
Renesas E7000 ICE didn't always respond in a timely manner.
But if 5 seconds is a long time to sit and wait for retransmissions,
- 20 seconds is far worse. This demonstrates the difficulty of using
+ 20 seconds is far worse. This demonstrates the difficulty of using
a single variable for all protocol timeouts.
- As remote.c is used much more than remote-e7000.c, it was changed
+ As remote.c is used much more than remote-e7000.c, it was changed
back to 2 seconds in 1999. */
int remote_timeout = 2;
int remote_debug = 0;
/* Sbrk location on entry to main. Used for statistics only. */
-#ifdef HAVE_SBRK
+#ifdef HAVE_USEFUL_SBRK
char *lim_at_start;
#endif
/* Called from print_frame_info to list the line we stopped in. */
-void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
+void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
int line,
- int stopline,
+ int stopline,
int noerror);
/* Replaces most of query. */
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... */
-
-void (*deprecated_interactive_hook) (void);
-
/* Called when going to wait for the target. Usually allows the GUI
to run while waiting for target events. */
/* 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,
+ const char *cmd, int from_tty);
/* Called when the current thread changes. Argument is thread id. */
/* See top.h. */
-struct ui *
-new_ui (FILE *instream, FILE *outstream, FILE *errstream)
+ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_)
+ : next (nullptr),
+ num (++highest_ui_num),
+ call_readline (nullptr),
+ input_handler (nullptr),
+ command_editing (0),
+ interp_info (nullptr),
+ async (0),
+ secondary_prompt_depth (0),
+ stdin_stream (instream_),
+ instream (instream_),
+ outstream (outstream_),
+ errstream (errstream_),
+ input_fd (fileno (instream)),
+ input_interactive_p (ISATTY (instream)),
+ prompt_state (PROMPT_NEEDED),
+ m_gdb_stdout (new stdio_file (outstream)),
+ m_gdb_stdin (new stdio_file (instream)),
+ m_gdb_stderr (new stderr_file (errstream)),
+ m_gdb_stdlog (m_gdb_stderr),
+ m_current_uiout (nullptr)
{
- struct ui *ui;
-
- ui = XCNEW (struct ui);
-
- ui->num = ++highest_ui_num;
- ui->stdin_stream = instream;
- ui->instream = instream;
- ui->outstream = outstream;
- ui->errstream = errstream;
-
- ui->input_fd = fileno (ui->instream);
-
- ui->input_interactive_p = ISATTY (ui->instream);
-
- ui->m_gdb_stdin = new stdio_file (ui->instream);
- ui->m_gdb_stdout = new stdio_file (ui->outstream);
- ui->m_gdb_stderr = new stderr_file (ui->errstream);
- ui->m_gdb_stdlog = ui->m_gdb_stderr;
-
- ui->prompt_state = PROMPT_NEEDED;
+ buffer_init (&line_buffer);
if (ui_list == NULL)
- ui_list = ui;
+ ui_list = this;
else
{
struct ui *last;
for (last = ui_list; last->next != NULL; last = last->next)
;
- last->next = ui;
+ last->next = this;
}
-
- return ui;
}
-static void
-free_ui (struct ui *ui)
-{
- delete ui->m_gdb_stdin;
- delete ui->m_gdb_stdout;
- delete ui->m_gdb_stderr;
-
- xfree (ui);
-}
-
-void
-delete_ui (struct ui *todel)
+ui::~ui ()
{
struct ui *ui, *uiprev;
uiprev = NULL;
for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next)
- if (ui == todel)
+ if (ui == this)
break;
gdb_assert (ui != NULL);
if (uiprev != NULL)
- uiprev->next = ui->next;
+ uiprev->next = next;
else
- ui_list = ui->next;
-
- free_ui (ui);
-}
-
-/* Cleanup that deletes a UI. */
-
-static void
-delete_ui_cleanup (void *void_ui)
-{
- struct ui *ui = (struct ui *) void_ui;
-
- delete_ui (ui);
-}
+ ui_list = next;
-/* See top.h. */
-
-struct cleanup *
-make_delete_ui_cleanup (struct ui *ui)
-{
- return make_cleanup (delete_ui_cleanup, ui);
+ delete m_gdb_stdin;
+ delete m_gdb_stdout;
+ delete m_gdb_stderr;
}
/* Open file named NAME for read/write, making sure not to make it the
controlling terminal. */
-static FILE *
+static gdb_file_up
open_terminal_stream (const char *name)
{
int fd;
- fd = open (name, O_RDWR | O_NOCTTY);
+ fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0);
if (fd < 0)
perror_with_name (_("opening terminal failed"));
- return fdopen (fd, "w+");
+ return gdb_file_up (fdopen (fd, "w+"));
}
/* Implementation of the "new-ui" command. */
static void
-new_ui_command (char *args, int from_tty)
+new_ui_command (const char *args, int from_tty)
{
- struct ui *ui;
- struct interp *interp;
- FILE *stream[3] = { NULL, NULL, NULL };
- int i;
- int res;
int argc;
- char **argv;
const char *interpreter_name;
const char *tty_name;
- struct cleanup *success_chain;
- struct cleanup *failure_chain;
dont_repeat ();
- argv = gdb_buildargv (args);
- success_chain = make_cleanup_freeargv (argv);
- argc = countargv (argv);
+ gdb_argv argv (args);
+ argc = argv.count ();
if (argc < 2)
- error (_("usage: new-ui <interpreter> <tty>"));
+ error (_("Usage: new-ui INTERPRETER TTY"));
interpreter_name = argv[0];
tty_name = argv[1];
{
scoped_restore save_ui = make_scoped_restore (¤t_ui);
- failure_chain = make_cleanup (null_cleanup, NULL);
+ /* Open specified terminal. Note: we used to open it three times,
+ once for each of stdin/stdout/stderr, but that does not work
+ with Windows named pipes. */
+ gdb_file_up stream = open_terminal_stream (tty_name);
- /* Open specified terminal, once for each of
- stdin/stdout/stderr. */
- for (i = 0; i < 3; i++)
- {
- stream[i] = open_terminal_stream (tty_name);
- make_cleanup_fclose (stream[i]);
- }
-
- ui = new_ui (stream[0], stream[1], stream[2]);
- make_cleanup (delete_ui_cleanup, ui);
+ std::unique_ptr<ui> ui
+ (new struct ui (stream.get (), stream.get (), stream.get ()));
ui->async = 1;
- current_ui = ui;
+ current_ui = ui.get ();
set_top_level_interpreter (interpreter_name);
interp_pre_command_loop (top_level_interpreter ());
- discard_cleanups (failure_chain);
+ /* Make sure the file is not closed. */
+ stream.release ();
- /* This restores the previous UI and frees argv. */
- do_cleanups (success_chain);
+ ui.release ();
}
printf_unfiltered ("New UI allocated\n");
/* 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 */ const char *source_file_name;
-
-/* Clean up on error during a "source" command (or execution of a
- user-defined command). */
-
-void
-do_restore_instream_cleanup (void *stream)
-{
- struct ui *ui = current_ui;
-
- /* Restore the previous input stream. */
- ui->instream = (FILE *) stream;
-}
+/* static */ std::string source_file_name;
/* Read commands from STREAM. */
void
read_command_file (FILE *stream)
{
struct ui *ui = current_ui;
- struct cleanup *cleanups;
- cleanups = make_cleanup (do_restore_instream_cleanup, ui->instream);
- ui->instream = stream;
+ scoped_restore save_instream
+ = make_scoped_restore (&ui->instream, stream);
/* Read commands from `instream' and execute them until end of file
or error reading instream. */
while (ui->instream != NULL && !feof (ui->instream))
{
- char *command;
+ const char *command;
/* Get a command-line. This calls the readline package. */
- command = command_line_input (NULL, 0, NULL);
+ command = command_line_input (NULL, NULL);
if (command == NULL)
break;
command_handler (command);
}
-
- do_cleanups (cleanups);
}
\f
void (*pre_init_ui_hook) (void);
}
#endif
-struct cleanup *
-prepare_execute_command (void)
+scoped_value_mark
+prepare_execute_command ()
{
- 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
if (non_stop)
target_dcache_invalidate ();
- return cleanup;
+ return scoped_value_mark ();
}
/* Tell the user if the language has changed (except first time) after
&& flang != language_unknown
&& flang != current_language->la_language)
{
- printf_filtered ("%s\n", lang_frame_mismatch_warn);
+ printf_filtered ("%s\n", _(lang_frame_mismatch_warn));
warned = 1;
}
}
wait_sync_command_done ();
}
+/* See command.h. */
+
+void
+set_repeat_arguments (const char *args)
+{
+ repeat_arguments = args;
+}
+
/* 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)
+execute_command (const char *p, int from_tty)
{
- struct cleanup *cleanup_if_error, *cleanup;
struct cmd_list_element *c;
- char *line;
+ const char *line;
+ const char *cmd_start = p;
- cleanup_if_error = make_bpstat_clear_actions_cleanup ();
- cleanup = prepare_execute_command ();
-
- /* Force cleanup of any alloca areas if using C alloca instead of
- a builtin alloca. */
- alloca (0);
+ auto cleanup_if_error = make_scope_exit (bpstat_clear_actions);
+ scoped_value_mark cleanup = prepare_execute_command ();
/* This can happen when command_line_input hits end of file. */
if (p == NULL)
{
- do_cleanups (cleanup);
- discard_cleanups (cleanup_if_error);
+ cleanup_if_error.release ();
return;
}
if (*p)
{
const char *cmd = p;
- char *arg;
+ const char *arg;
int was_sync = current_ui->prompt_state == PROMPT_BLOCKED;
line = p;
/* If trace-commands is set then this will print this command. */
- print_command_trace (p);
+ print_command_trace ("%s", p);
c = lookup_cmd (&cmd, cmdlist, "", 0, 1);
- p = (char *) cmd;
+ p = cmd;
+
+ scoped_restore save_repeat_args
+ = make_scoped_restore (&repeat_arguments, nullptr);
+ const char *args_pointer = p;
/* Pass null arg rather than an empty one. */
arg = *p ? p : 0;
is_complete_command hack is testing for. */
/* Clear off trailing whitespace, except for set and complete
command. */
+ std::string without_whitespace;
if (arg
&& c->type != set_cmd
&& !is_complete_command (c))
{
- p = arg + strlen (arg) - 1;
+ const char *old_end = arg + strlen (arg) - 1;
+ p = old_end;
while (p >= arg && (*p == ' ' || *p == '\t'))
p--;
- *(p + 1) = '\0';
+ if (p != old_end)
+ {
+ without_whitespace = std::string (arg, p + 1);
+ arg = without_whitespace.c_str ();
+ }
}
/* If this command has been pre-hooked, run the hook first. */
/* c->user_commands would be NULL in the case of a python command. */
if (c->theclass == class_user && c->user_commands)
execute_user_command (c, arg);
+ else if (c->theclass == class_user
+ && c->prefixlist && !c->allow_unknown)
+ /* If this is a user defined prefix that does not allow unknown
+ (in other words, C is a prefix command and not a command
+ that can be followed by its args), report the list of
+ subcommands. */
+ {
+ printf_unfiltered
+ ("\"%.*s\" must be followed by the name of a subcommand.\n",
+ (int) strlen (c->prefixname) - 1, c->prefixname);
+ help_list (*c->prefixlist, c->prefixname, all_commands, gdb_stdout);
+ }
else if (c->type == set_cmd)
do_set_command (arg, from_tty, c);
else if (c->type == show_cmd)
/* If this command has been post-hooked, run the hook last. */
execute_cmd_post_hook (c);
+ if (repeat_arguments != NULL && cmd_start == saved_command_line)
+ {
+ gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments));
+ strcpy (saved_command_line + (args_pointer - cmd_start),
+ repeat_arguments);
+ }
}
- check_frame_language_change ();
+ /* Only perform the frame-language-change check if the command
+ we just finished executing did not resume the inferior's execution.
+ If it did resume the inferior, we will do that check after
+ the inferior stopped. */
+ if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING)
+ check_frame_language_change ();
- do_cleanups (cleanup);
- discard_cleanups (cleanup_if_error);
+ cleanup_if_error.release ();
}
-/* 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
+/* Run execute_command for P and FROM_TTY. Sends its output to FILE,
+ do not display it to the screen. BATCH_FLAG will be
temporarily set to true. */
-std::string
-execute_command_to_string (char *p, int from_tty)
+void
+execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty)
{
- struct cleanup *cleanup;
-
/* GDB_STDOUT should be better already restored during these
restoration callbacks. */
- cleanup = set_batch_flag_and_make_cleanup_restore_page_info ();
+ set_batch_flag_and_restore_page_info save_page_info;
scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
- string_file str_file;
-
- current_uiout->redirect (&str_file);
- make_cleanup_ui_out_redirect_pop (current_uiout);
-
- scoped_restore save_stdout
- = make_scoped_restore (&gdb_stdout, &str_file);
- scoped_restore save_stderr
- = make_scoped_restore (&gdb_stderr, &str_file);
- scoped_restore save_stdlog
- = make_scoped_restore (&gdb_stdlog, &str_file);
- scoped_restore save_stdtarg
- = make_scoped_restore (&gdb_stdtarg, &str_file);
- scoped_restore save_stdtargerr
- = make_scoped_restore (&gdb_stdtargerr, &str_file);
+ {
+ current_uiout->redirect (file);
+ ui_out_redirect_pop redirect_popper (current_uiout);
+
+ scoped_restore save_stdout
+ = make_scoped_restore (&gdb_stdout, file);
+ scoped_restore save_stderr
+ = make_scoped_restore (&gdb_stderr, file);
+ scoped_restore save_stdlog
+ = make_scoped_restore (&gdb_stdlog, file);
+ scoped_restore save_stdtarg
+ = make_scoped_restore (&gdb_stdtarg, file);
+ scoped_restore save_stdtargerr
+ = make_scoped_restore (&gdb_stdtargerr, file);
+
+ execute_command (p, from_tty);
+ }
+}
- execute_command (p, from_tty);
+/* 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. */
- do_cleanups (cleanup);
+std::string
+execute_command_to_string (const char *p, int from_tty,
+ bool term_out)
+{
+ string_file str_file (term_out);
+ execute_command_to_ui_file (&str_file, p, from_tty);
return std::move (str_file.string ());
}
static int suppress_dont_repeat = 0;
-/* Commands call this if they do not want to be repeated by null lines. */
+/* See command.h */
void
dont_repeat (void)
thing read from stdin in line and don't want to delete it. Null
lines won't repeat here in any case. */
if (ui->instream == ui->stdin_stream)
- *saved_command_line = 0;
+ {
+ *saved_command_line = 0;
+ repeat_arguments = NULL;
+ }
+}
+
+/* See command.h */
+
+const char *
+repeat_previous ()
+{
+ /* Do not repeat this command, as this command is a repeating command. */
+ dont_repeat ();
+
+ /* We cannot free saved_command_line, as this line is being executed,
+ so swap it with previous_saved_command_line. */
+ std::swap (previous_saved_command_line, saved_command_line);
+ std::swap (previous_repeat_arguments, repeat_arguments);
+
+ const char *prev = skip_spaces (get_saved_command_line ());
+ if (*prev == '\0')
+ error (_("No previous command to relaunch"));
+ return prev;
}
-/* Prevent dont_repeat from working, and return a cleanup that
- restores the previous state. */
+/* See command.h. */
scoped_restore_tmpl<int>
prevent_dont_repeat (void)
return make_scoped_restore (&suppress_dont_repeat, 1);
}
+/* See command.h. */
+
+char *
+get_saved_command_line ()
+{
+ return saved_command_line;
+}
+
+/* See command.h. */
+
+void
+save_command_line (const char *cmd)
+{
+ xfree (previous_saved_command_line);
+ previous_saved_command_line = saved_command_line;
+ previous_repeat_arguments = repeat_arguments;
+ saved_command_line = xstrdup (cmd);
+ repeat_arguments = NULL;
+}
+
\f
/* Read a line from the stream "instream" without command line editing.
while (1)
{
int c;
- int numfds;
fd_set readfds;
QUIT;
/* Variables which control command line editing and history
substitution. These variables are given default values at the end
of this file. */
-static int command_editing_p;
+static bool command_editing_p;
/* 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 */ int history_expansion_p;
+/* static */ bool history_expansion_p;
-static int write_history_p;
+static bool write_history_p;
static void
show_write_history_p (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
text. */
static void
-gdb_readline_wrapper_line (char *line)
+gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line)
{
gdb_assert (!gdb_readline_wrapper_done);
- gdb_readline_wrapper_result = line;
+ gdb_readline_wrapper_result = line.release ();
gdb_readline_wrapper_done = 1;
/* Prevent operate-and-get-next from acting too early. */
gdb_rl_callback_handler_remove ();
}
-struct gdb_readline_wrapper_cleanup
- {
- void (*handler_orig) (char *);
- int already_prompted_orig;
-
- /* Whether the target was async. */
- int target_is_async_orig;
- };
-
-static void
-gdb_readline_wrapper_cleanup (void *arg)
+class gdb_readline_wrapper_cleanup
{
- struct ui *ui = current_ui;
- struct gdb_readline_wrapper_cleanup *cleanup
- = (struct gdb_readline_wrapper_cleanup *) arg;
+public:
+ gdb_readline_wrapper_cleanup ()
+ : m_handler_orig (current_ui->input_handler),
+ m_already_prompted_orig (current_ui->command_editing
+ ? rl_already_prompted : 0),
+ m_target_is_async_orig (target_is_async_p ()),
+ m_save_ui (¤t_ui)
+ {
+ current_ui->input_handler = gdb_readline_wrapper_line;
+ current_ui->secondary_prompt_depth++;
- if (ui->command_editing)
- rl_already_prompted = cleanup->already_prompted_orig;
+ if (m_target_is_async_orig)
+ target_async (0);
+ }
- gdb_assert (ui->input_handler == gdb_readline_wrapper_line);
- ui->input_handler = cleanup->handler_orig;
+ ~gdb_readline_wrapper_cleanup ()
+ {
+ struct ui *ui = current_ui;
- /* Don't restore our input handler in readline yet. That would make
- readline prep the terminal (putting it in raw mode), while the
- line we just read may trigger execution of a command that expects
- the terminal in the default cooked/canonical mode, such as e.g.,
- running Python's interactive online help utility. See
- gdb_readline_wrapper_line for when we'll reinstall it. */
+ if (ui->command_editing)
+ rl_already_prompted = m_already_prompted_orig;
- gdb_readline_wrapper_result = NULL;
- gdb_readline_wrapper_done = 0;
- ui->secondary_prompt_depth--;
- gdb_assert (ui->secondary_prompt_depth >= 0);
+ gdb_assert (ui->input_handler == gdb_readline_wrapper_line);
+ ui->input_handler = m_handler_orig;
- after_char_processing_hook = saved_after_char_processing_hook;
- saved_after_char_processing_hook = NULL;
+ /* Don't restore our input handler in readline yet. That would make
+ readline prep the terminal (putting it in raw mode), while the
+ line we just read may trigger execution of a command that expects
+ the terminal in the default cooked/canonical mode, such as e.g.,
+ running Python's interactive online help utility. See
+ gdb_readline_wrapper_line for when we'll reinstall it. */
- if (cleanup->target_is_async_orig)
- target_async (1);
+ gdb_readline_wrapper_result = NULL;
+ gdb_readline_wrapper_done = 0;
+ ui->secondary_prompt_depth--;
+ gdb_assert (ui->secondary_prompt_depth >= 0);
- xfree (cleanup);
-}
+ after_char_processing_hook = saved_after_char_processing_hook;
+ saved_after_char_processing_hook = NULL;
-char *
-gdb_readline_wrapper (const char *prompt)
-{
- struct ui *ui = current_ui;
- struct cleanup *back_to;
- struct gdb_readline_wrapper_cleanup *cleanup;
- char *retval;
+ if (m_target_is_async_orig)
+ target_async (1);
+ }
- cleanup = XNEW (struct gdb_readline_wrapper_cleanup);
- cleanup->handler_orig = ui->input_handler;
- ui->input_handler = gdb_readline_wrapper_line;
+ DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup);
- if (ui->command_editing)
- cleanup->already_prompted_orig = rl_already_prompted;
- else
- cleanup->already_prompted_orig = 0;
+private:
- cleanup->target_is_async_orig = target_is_async_p ();
+ void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&);
+ int m_already_prompted_orig;
- ui->secondary_prompt_depth++;
- back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup);
+ /* Whether the target was async. */
+ int m_target_is_async_orig;
/* Processing events may change the current UI. */
- scoped_restore save_ui = make_scoped_restore (¤t_ui);
+ scoped_restore_tmpl<struct ui *> m_save_ui;
+};
- if (cleanup->target_is_async_orig)
- target_async (0);
+char *
+gdb_readline_wrapper (const char *prompt)
+{
+ struct ui *ui = current_ui;
+
+ gdb_readline_wrapper_cleanup cleanup;
/* Display our prompt and prevent double prompt display. Don't pass
down a NULL prompt, since that has special meaning for
if (gdb_readline_wrapper_done)
break;
- retval = gdb_readline_wrapper_result;
- do_cleanups (back_to);
- return retval;
+ return gdb_readline_wrapper_result;
}
\f
gdb_safe_append_history (void)
{
int ret, saved_errno;
- char *local_history_filename;
- struct cleanup *old_chain;
- local_history_filename
- = xstrprintf ("%s-gdb%ld~", history_filename, (long) getpid ());
- old_chain = make_cleanup (xfree, local_history_filename);
+ std::string local_history_filename
+ = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ());
- ret = rename (history_filename, local_history_filename);
+ ret = rename (history_filename, local_history_filename.c_str ());
saved_errno = errno;
if (ret < 0 && saved_errno != ENOENT)
{
warning (_("Could not rename %s to %s: %s"),
- history_filename, local_history_filename,
+ history_filename, local_history_filename.c_str (),
safe_strerror (saved_errno));
}
else
to move it back anyway. Otherwise a global history file would
never get created! */
gdb_assert (saved_errno == ENOENT);
- write_history (local_history_filename);
+ write_history (local_history_filename.c_str ());
}
else
{
- append_history (command_count, local_history_filename);
+ append_history (command_count, local_history_filename.c_str ());
if (history_is_stifled ())
- history_truncate_file (local_history_filename, history_max_entries);
+ history_truncate_file (local_history_filename.c_str (),
+ history_max_entries);
}
- ret = rename (local_history_filename, history_filename);
+ ret = rename (local_history_filename.c_str (), history_filename);
saved_errno = errno;
if (ret < 0 && saved_errno != EEXIST)
warning (_("Could not rename %s to %s: %s"),
- local_history_filename, history_filename,
+ local_history_filename.c_str (), history_filename,
safe_strerror (saved_errno));
}
-
- do_cleanups (old_chain);
}
/* Read one line from the command input stream `instream' into a local
NULL is returned for end of file.
- *If* input is from an interactive stream (stdin), the line read is
- copied into the global 'saved_command_line' so that it can be
- repeated.
-
This routine either uses fancy command line editing or simple input
as the user has requested. */
-char *
-command_line_input (const char *prompt_arg, int repeat,
- const char *annotation_suffix)
+const char *
+command_line_input (const char *prompt_arg, const char *annotation_suffix)
{
static struct buffer cmd_line_buffer;
static int cmd_line_buffer_initialized;
/* Starting a new command line. */
cmd_line_buffer.used_size = 0;
-#ifdef STOP_SIGNAL
+#ifdef SIGTSTP
if (job_control)
- signal (STOP_SIGNAL, handle_stop_sig);
+ signal (SIGTSTP, handle_sigtstp);
#endif
while (1)
{
- char *rl;
+ gdb::unique_xmalloc_ptr<char> rl;
/* Make sure that all output has been output. Some machines may
let you get away with leaving out some of the gdb_flush, but
gdb_flush (gdb_stdout);
gdb_flush (gdb_stderr);
- if (source_file_name != NULL)
+ if (!source_file_name.empty ())
++source_line_number;
if (from_tty && annotation_level > 1)
&& from_tty
&& input_interactive_p (current_ui))
{
- rl = (*deprecated_readline_hook) (prompt);
+ rl.reset ((*deprecated_readline_hook) (prompt));
}
else if (command_editing_p
&& from_tty
&& input_interactive_p (current_ui))
{
- rl = gdb_readline_wrapper (prompt);
+ rl.reset (gdb_readline_wrapper (prompt));
}
else
{
- rl = gdb_readline_no_editing (prompt);
+ rl.reset (gdb_readline_no_editing (prompt));
}
- cmd = handle_line_of_input (&cmd_line_buffer, rl,
- repeat, annotation_suffix);
+ cmd = handle_line_of_input (&cmd_line_buffer, rl.get (),
+ 0, annotation_suffix);
if (cmd == (char *) EOF)
{
cmd = NULL;
prompt = NULL;
}
-#ifdef STOP_SIGNAL
+#ifdef SIGTSTP
if (job_control)
- signal (STOP_SIGNAL, SIG_DFL);
+ signal (SIGTSTP, SIG_DFL);
#endif
return cmd;
}
\f
-/* Print the GDB banner. */
+/* See top.h. */
void
-print_gdb_version (struct ui_file *stream)
+print_gdb_version (struct ui_file *stream, bool interactive)
{
/* 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. */
- fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version);
+ ui_file_style style;
+ if (interactive)
+ {
+ ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE,
+ ui_file_style::BOLD };
+ style = nstyle;
+ }
+ fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version);
/* Second line is a copyright notice. */
fprintf_filtered (stream,
- "Copyright (C) 2017 Free Software Foundation, Inc.\n");
+ "Copyright (C) 2019 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, "\
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");
+There is NO WARRANTY, to the extent permitted by law.");
+
+ if (!interactive)
+ return;
+
+ fprintf_filtered (stream, ("\nType \"show copying\" and "
+ "\"show warranty\" for details.\n"));
/* After the required info we print the configuration information. */
{
fprintf_filtered (stream, "%s", host_name);
}
- fprintf_filtered (stream, "\".\n\
-Type \"show configuration\" for configuration details.");
+ fprintf_filtered (stream, "\".\n");
+
+ fprintf_filtered (stream, _("Type \"show configuration\" "
+ "for configuration details.\n"));
if (REPORT_BUGS_TO[0])
{
fprintf_filtered (stream,
- _("\nFor bug reporting instructions, please see:\n"));
+ _("For bug reporting instructions, please see:\n"));
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"));
+resources online at:\n <http://www.gnu.org/software/gdb/documentation/>."));
+ fprintf_filtered (stream, "\n\n");
fprintf_filtered (stream, _("For help, type \"help\".\n"));
- fprintf_filtered (stream, _("Type \"apropos word\" to search for \
-commands related to \"word\"."));
+ fprintf_filtered (stream,
+ _("Type \"apropos word\" to search for commands \
+related to \"word\"."));
}
/* Print the details of GDB build-time configuration. */
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\
--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\
--without-libunwind-ia64\n\
"));
#endif
+
#if HAVE_LIBLZMA
fprintf_filtered (stream, _("\
--with-lzma\n\
--without-lzma\n\
"));
#endif
+
+#if HAVE_LIBBABELTRACE
+ fprintf_filtered (stream, _("\
+ --with-babeltrace\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-babeltrace\n\
+"));
+#endif
+
+#if HAVE_LIBIPT
+ fprintf_filtered (stream, _("\
+ --with-intel-pt\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-intel-pt\n\
+"));
+#endif
+
+#if HAVE_LIBMPFR
+ fprintf_filtered (stream, _("\
+ --with-mpfr\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --without-mpfr\n\
+"));
+#endif
+
#ifdef WITH_PYTHON_PATH
fprintf_filtered (stream, _("\
--with-python=%s%s\n\
"), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : "");
+#else
+ fprintf_filtered (stream, _("\
+ --without-python\n\
+"));
#endif
+
#if HAVE_GUILE
fprintf_filtered (stream, _("\
--with-guile\n\
--without-guile\n\
"));
#endif
+
+#if HAVE_SOURCE_HIGHLIGHT
+ fprintf_filtered (stream, _("\
+ --enable-source-highlight\n\
+"));
+#else
+ fprintf_filtered (stream, _("\
+ --disable-source-highlight\n\
+"));
+#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_LIBBABELTRACE
- fprintf_filtered (stream, _("\
- --with-babeltrace\n\
-"));
-#else
+
+ if (SYSTEM_GDBINIT_DIR[0])
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\
+ --with-system-gdbinit-dir=%s%s\n\
+"), SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE ? " (relocatable)" : "");
+
+ /* 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\
"));
struct qt_args
{
- char *args;
int from_tty;
};
kill_or_detach (struct inferior *inf, void *args)
{
struct qt_args *qt = (struct qt_args *) args;
- struct thread_info *thread;
if (inf->pid == 0)
return 0;
- thread = any_thread_of_process (inf->pid);
+ thread_info *thread = any_thread_of_inferior (inf);
if (thread != NULL)
{
- switch_to_thread (thread->ptid);
+ switch_to_thread (thread);
/* Leave core files alone. */
if (target_has_execution)
{
if (inf->attach_flag)
- target_detach (qt->args, qt->from_tty);
+ target_detach (inf, qt->from_tty);
else
target_kill ();
}
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)));
+ target_pid_to_str (ptid_t (inf->pid)).c_str ());
else
fprintf_filtered (stb,
_("\tInferior %d [%s] will be killed.\n"), inf->num,
- target_pid_to_str (pid_to_ptid (inf->pid)));
+ target_pid_to_str (ptid_t (inf->pid)).c_str ());
return 0;
}
{
struct ui *saved_top_level = current_ui;
- target_terminal_ours ();
+ target_terminal::ours ();
current_ui = main_ui;
undo_terminal_modifications_before_exit ();
- /* An optional expression may be used to cause gdb to terminate with the
+ /* An optional expression may be used to cause gdb to terminate with the
value of that expression. */
if (exit_arg)
exit_code = *exit_arg;
else if (return_child_result)
exit_code = return_child_result_value;
- qt.args = NULL;
qt.from_tty = from_tty;
/* We want to handle any quit errors and exit regardless. */
/* Get out of tfind mode, and kill or detach all inferiors. */
- TRY
+ try
{
disconnect_tracing ();
iterate_over_inferiors (kill_or_detach, &qt);
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stderr, ex);
}
- END_CATCH
/* Give all pushed targets a chance to do minimal cleanup, and pop
them all out. */
- TRY
+ try
{
pop_all_targets ();
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stderr, ex);
}
- END_CATCH
/* Save the history information if it is appropriate to do so. */
- TRY
+ try
{
if (write_history_p && history_filename)
{
gdb_safe_append_history ();
}
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stderr, ex);
}
- END_CATCH
+
+ /* Destroy any values currently allocated now instead of leaving it
+ to global destructors, because that may be too late. For
+ example, the destructors of xmethod values call into the Python
+ runtime, which is finalized via a final cleanup. */
+ finalize_values ();
/* Do any final cleanups before exiting. */
- TRY
+ try
{
- do_final_cleanups (all_cleanups ());
+ do_final_cleanups ();
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stderr, ex);
}
- END_CATCH
exit (exit_code);
}
}
\f
static void
-dont_repeat_command (char *ignored, int from_tty)
+dont_repeat_command (const char *ignored, int from_tty)
{
/* Can't call dont_repeat here because we're not necessarily reading
from stdin. */
/* Number of commands to print in each call to show_commands. */
#define Hist_print 10
void
-show_commands (char *args, int from_tty)
+show_commands (const char *args, int from_tty)
{
/* Index for history commands. Relative to history_base. */
int offset;
"show commands +" does. This is unnecessary if arg is null,
because "show commands +" is not useful after "show commands". */
if (from_tty && args)
- {
- args[0] = '+';
- args[1] = '\0';
- }
+ set_repeat_arguments ("+");
}
/* Update the size of our command history file to HISTORY_SIZE.
/* Called by do_setshow_command. */
static void
-set_history_size_command (char *args, int from_tty, struct cmd_list_element *c)
+set_history_size_command (const char *args,
+ int from_tty, struct cmd_list_element *c)
{
set_readline_history_size (history_size_setshow_var);
}
void
-set_history (char *args, int from_tty)
+set_history (const char *args, int from_tty)
{
printf_unfiltered (_("\"set history\" must be followed "
"by the name of a history subcommand.\n"));
}
void
-show_history (char *args, int from_tty)
+show_history (const char *args, int from_tty)
{
cmd_show_list (showhistlist, from_tty, "");
}
-int info_verbose = 0; /* Default verbose msgs off. */
+bool info_verbose = false; /* Default verbose msgs off. */
-/* Called by do_setshow_command. An elaborate joke. */
+/* Called by do_set_command. An elaborate joke. */
void
-set_verbose (char *args, int from_tty, struct cmd_list_element *c)
+set_verbose (const char *args, int from_tty, struct cmd_list_element *c)
{
const char *cmdname = "verbose";
struct cmd_list_element *showcmd;
showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS);
+ if (c->doc && c->doc_allocated)
+ xfree ((char *) c->doc);
+ if (showcmd->doc && showcmd->doc_allocated)
+ xfree ((char *) showcmd->doc);
if (info_verbose)
{
- c->doc = "Set verbose printing of informational messages.";
- showcmd->doc = "Show verbose printing of informational messages.";
+ c->doc = _("Set verbose printing of informational messages.");
+ showcmd->doc = _("Show verbose printing of informational messages.");
}
else
{
- c->doc = "Set verbosity.";
- showcmd->doc = "Show verbosity.";
+ c->doc = _("Set verbosity.");
+ showcmd->doc = _("Show verbosity.");
}
+ c->doc_allocated = 0;
+ showcmd->doc_allocated = 0;
}
/* Init the history buffer. Note that we are called after the init file(s)
void
init_history (void)
{
- char *tmpenv;
+ const char *tmpenv;
tmpenv = getenv ("GDBHISTSIZE");
if (tmpenv)
that was read. */
#ifdef __MSDOS__
/* No leading dots in file names are allowed on MSDOS. */
- history_filename = concat (current_directory, "/_gdb_history",
- (char *)NULL);
+ const char *fname = "_gdb_history";
#else
- history_filename = concat (current_directory, "/.gdb_history",
- (char *)NULL);
+ const char *fname = ".gdb_history";
#endif
+
+ gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (fname));
+ history_filename = temp.release ();
}
read_history (history_filename);
}
/* "set editing" command. */
static void
-set_editing (char *args, int from_tty, struct cmd_list_element *c)
+set_editing (const char *args, int from_tty, struct cmd_list_element *c)
{
change_line_handler (set_editing_cmd_var);
/* Update the control variable so that MI's =cmd-param-changed event
/* "set" command for the gdb_datadir configuration variable. */
static void
-set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c)
+set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c)
{
set_gdb_data_directory (staged_gdb_datadir);
- observer_notify_gdb_datadir_changed ();
+ gdb::observers::gdb_datadir_changed.notify ();
}
/* "show" command for the gdb_datadir configuration variable. */
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"),
- gdb_datadir);
+ gdb_datadir.c_str ());
}
static void
-set_history_filename (char *args, int from_tty, struct cmd_list_element *c)
+set_history_filename (const 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);
+ {
+ gdb::unique_xmalloc_ptr<char> temp (gdb_abspath (history_filename));
+
+ xfree (history_filename);
+ history_filename = temp.release ();
+ }
+}
+
+static void
+init_gdb_version_vars (void)
+{
+ struct internalvar *major_version_var = create_internalvar ("_gdb_major");
+ struct internalvar *minor_version_var = create_internalvar ("_gdb_minor");
+ int vmajor = 0, vminor = 0, vrevision = 0;
+ sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision);
+ set_internalvar_integer (major_version_var, vmajor);
+ set_internalvar_integer (minor_version_var, vminor + (vrevision > 0));
}
static void
/* 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_attempted_completion_function = gdb_rl_attempted_completion_function;
set_rl_completer_word_break_characters (default_word_break_characters ());
rl_completer_quote_characters = get_gdb_completer_quote_characters ();
rl_completion_display_matches_hook = cli_display_match_list;
add_setshow_string_cmd ("prompt", class_support,
&top_prompt,
- _("Set gdb's prompt"),
- _("Show gdb's prompt"),
+ _("Set gdb's prompt."),
+ _("Show gdb's prompt."),
NULL, NULL,
show_prompt,
&setlist, &showlist);
add_setshow_zuinteger_unlimited_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.\n\
+Set the size of the command history."), _("\
+Show the size of the command history."), _("\
+This is 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 \"GDBHISTSIZE\", or to 256 if this variable is not set."),
&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"), _("\
+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)."),
set_history_filename,
show_history_filename,
&setlist, &showlist);
c = add_cmd ("new-ui", class_support, new_ui_command, _("\
-Create a new UI. It takes two arguments:\n\
+Create a new UI.\n\
+Usage: new-ui INTERPRETER TTY\n\
The first argument is the name of the interpreter to run.\n\
-The second argument is the terminal the UI runs on.\n"), &cmdlist);
+The second argument is the terminal the UI runs on."), &cmdlist);
set_cmd_completer (c, interpreter_completer);
}
void
gdb_init (char *argv0)
{
+ saved_command_line = xstrdup ("");
+ previous_saved_command_line = xstrdup ("");
+
if (pre_init_ui_hook)
pre_init_ui_hook ();
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_page_info ();
initialize_progspace ();
initialize_inferiors ();
initialize_current_architecture ();
- init_cli_cmds();
init_main (); /* But that omits this file! Do it now. */
initialize_stdin_serial ();
prefix to be installed. Keep things simple and just do final
script initialization here. */
finish_ext_lang_initialization ();
+
+ /* Create $_gdb_major and $_gdb_minor convenience variables. */
+ init_gdb_version_vars ();
}
projects / deliverable / binutils-gdb.git / blobdiff