/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986-2015 Free Software Foundation, Inc.
+ Copyright (C) 1986-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "observer.h"
#include "maint.h"
#include "filenames.h"
+#include "frame.h"
/* readline include files. */
#include "readline/readline.h"
#include "tracepoint.h"
#include "inf-loop.h"
+#if defined(TUI)
+# include "tui/tui.h"
+#endif
+
extern void initialize_all_files (void);
#define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
void (*deprecated_interactive_hook) (void);
-/* 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). */
-void (*deprecated_register_changed_hook) (int regno);
-
/* Called when going to wait for the target. Usually allows the GUI
to run while waiting for target events. */
do_restore_instream_cleanup (void *stream)
{
/* Restore the previous input stream. */
- instream = stream;
+ instream = (FILE *) stream;
}
/* Read commands from STREAM. */
check_frame_language_change (void)
{
static int warned = 0;
+ struct frame_info *frame;
/* 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 ();
+ frame = deprecated_safe_get_selected_frame ();
if (current_language != expected_language)
{
if (language_mode == language_mode_auto && info_verbose)
{
enum language flang;
- flang = get_frame_language ();
+ flang = get_frame_language (frame);
if (!warned
&& flang != language_unknown
&& flang != current_language->la_language)
/* See top.h. */
+void
+wait_sync_command_done (void)
+{
+ while (gdb_do_one_event () >= 0)
+ if (!sync_execution)
+ break;
+}
+
+/* See top.h. */
+
void
maybe_wait_sync_command_done (int was_sync)
{
just ran a synchronous command that started the target, wait
for that command to end. */
if (!interpreter_async && !was_sync && sync_execution)
- {
- while (gdb_do_one_event () >= 0)
- if (!sync_execution)
- break;
- }
+ wait_sync_command_done ();
}
/* Execute the line P as a command, in the current user context.
{
struct cleanup *old_chain;
char *command;
- int stdin_is_tty = ISATTY (stdin);
while (instream && !feof (instream))
{
(*window_hook) (instream, get_prompt ());
clear_quit_flag ();
- if (instream == stdin && stdin_is_tty)
+ if (instream == stdin)
reinitialize_more_filter ();
old_chain = make_cleanup (null_cleanup, 0);
value);
}
+/* Variable associated with the "history remove-duplicates" option.
+ The value -1 means unlimited. */
+static int history_remove_duplicates = 0;
+
+static void
+show_history_remove_duplicates (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file,
+ _("The number of history entries to look back at for "
+ "duplicates is %s.\n"),
+ value);
+}
+
static char *history_filename;
static void
show_history_filename (struct ui_file *file, int from_tty,
return. */
static void (*saved_after_char_processing_hook) (void);
+
+/* The number of nested readline secondary prompts that are currently
+ active. */
+
+static int gdb_secondary_prompt_depth = 0;
+
+/* See top.h. */
+
+int
+gdb_in_secondary_prompt_p (void)
+{
+ return gdb_secondary_prompt_depth > 0;
+}
+
+
/* This function is called when readline has seen a complete line of
text. */
static void
gdb_readline_wrapper_cleanup (void *arg)
{
- struct gdb_readline_wrapper_cleanup *cleanup = arg;
+ struct gdb_readline_wrapper_cleanup *cleanup
+ = (struct gdb_readline_wrapper_cleanup *) arg;
rl_already_prompted = cleanup->already_prompted_orig;
gdb_readline_wrapper_result = NULL;
gdb_readline_wrapper_done = 0;
+ gdb_secondary_prompt_depth--;
+ gdb_assert (gdb_secondary_prompt_depth >= 0);
after_char_processing_hook = saved_after_char_processing_hook;
saved_after_char_processing_hook = NULL;
struct gdb_readline_wrapper_cleanup *cleanup;
char *retval;
- cleanup = xmalloc (sizeof (*cleanup));
+ cleanup = XNEW (struct gdb_readline_wrapper_cleanup);
cleanup->handler_orig = input_handler;
input_handler = gdb_readline_wrapper_line;
cleanup->target_is_async_orig = target_is_async_p ();
+ gdb_secondary_prompt_depth++;
back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup);
if (cleanup->target_is_async_orig)
void
gdb_add_history (const char *command)
{
- add_history (command);
command_count++;
+
+ if (history_remove_duplicates != 0)
+ {
+ int lookbehind;
+ int lookbehind_threshold;
+
+ /* The lookbehind threshold for finding a duplicate history entry is
+ bounded by command_count because we can't meaningfully delete
+ history entries that are already stored in the history file since
+ the history file is appended to. */
+ if (history_remove_duplicates == -1
+ || history_remove_duplicates > command_count)
+ lookbehind_threshold = command_count;
+ else
+ lookbehind_threshold = history_remove_duplicates;
+
+ using_history ();
+ for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++)
+ {
+ HIST_ENTRY *temp = previous_history ();
+
+ if (temp == NULL)
+ break;
+
+ if (strcmp (temp->line, command) == 0)
+ {
+ HIST_ENTRY *prev = remove_history (where_history ());
+ command_count--;
+ free_history_entry (prev);
+ break;
+ }
+ }
+ using_history ();
+ }
+
+ add_history (command);
}
/* Safely append new history entries to the history file in a corruption-free
{
char *local_prompt;
- local_prompt = alloca ((prompt == NULL ? 0 : strlen (prompt))
- + strlen (annotation_suffix) + 40);
+ local_prompt
+ = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt))
+ + strlen (annotation_suffix) + 40);
if (prompt == NULL)
local_prompt[0] = '\0';
else
{
if (linelength > saved_command_line_size)
{
- saved_command_line = xrealloc (saved_command_line, linelength);
+ saved_command_line
+ = (char *) xrealloc (saved_command_line, linelength);
saved_command_line_size = linelength;
}
strcpy (saved_command_line, linebuffer);
/* Second line is a copyright notice. */
fprintf_filtered (stream,
- "Copyright (C) 2015 Free Software Foundation, Inc.\n");
+ "Copyright (C) 2016 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
static int
kill_or_detach (struct inferior *inf, void *args)
{
- struct qt_args *qt = args;
+ struct qt_args *qt = (struct qt_args *) args;
struct thread_info *thread;
if (inf->pid == 0)
static int
print_inferior_quit_action (struct inferior *inf, void *arg)
{
- struct ui_file *stb = arg;
+ struct ui_file *stb = (struct ui_file *) arg;
if (inf->pid == 0)
return 0;
return qr;
}
+/* Prepare to exit GDB cleanly by undoing any changes made to the
+ terminal so that we leave the terminal in the state we acquired it. */
+
+static void
+undo_terminal_modifications_before_exit (void)
+{
+ target_terminal_ours ();
+#if defined(TUI)
+ tui_disable ();
+#endif
+ if (async_command_editing_p)
+ gdb_disable_readline ();
+}
+
+
/* Quit without asking for confirmation. */
void
int exit_code = 0;
struct qt_args qt;
+ undo_terminal_modifications_before_exit ();
+
/* An optional expression may be used to cause gdb to terminate with the
value of that expression. */
if (args)
show_history_size,
&sethistlist, &showhistlist);
+ add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class,
+ &history_remove_duplicates, _("\
+Set how far back in history to look for and remove duplicate entries."), _("\
+Show how far back in history to look for and remove duplicate entries."), _("\
+If set to a nonzero value N, GDB will look back at the last N history entries\n\
+and remove the first history entry that is a duplicate of the most recent\n\
+entry, each time a new history entry is added.\n\
+If set to \"unlimited\", this lookbehind is unbounded.\n\
+Only history entries added during this session are considered for removal.\n\
+If set to 0, removal of duplicate history entries is disabled.\n\
+By default this option is set to 0."),
+ NULL,
+ show_history_remove_duplicates,
+ &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"), _("\
projects / deliverable / binutils-gdb.git / blobdiff