Modernize configure.ac's

[deliverable/binutils-gdb.git] / gdb / top.c

diff --git a/gdb/top.c b/gdb/top.c
index 1e30b1cb2b13a08c7326d1f088d4cbec44523024..ed200ba7b4e0844bd176a4bd837e46f433e503bb 100644 (file)
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -1,6 +1,6 @@
 /* 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.
 
@@ -49,6 +49,7 @@
 #include "observer.h"
 #include "maint.h"
 #include "filenames.h"
+#include "frame.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
@@ -67,6 +68,10 @@
 #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
@@ -273,7 +278,7 @@ void
 do_restore_instream_cleanup (void *stream)
 {
   /* Restore the previous input stream.  */
-  instream = stream;
+  instream = (FILE *) stream;
 }
 
 /* Read commands from STREAM.  */
@@ -325,10 +330,11 @@ void
 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)
@@ -348,7 +354,7 @@ check_frame_language_change (void)
     {
       enum language flang;
 
-      flang = get_frame_language ();
+      flang = get_frame_language (frame);
       if (!warned
          && flang != language_unknown
          && flang != current_language->la_language)
@@ -361,6 +367,16 @@ check_frame_language_change (void)
 
 /* 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)
 {
@@ -369,11 +385,7 @@ 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.
@@ -530,7 +542,6 @@ command_loop (void)
 {
   struct cleanup *old_chain;
   char *command;
-  int stdin_is_tty = ISATTY (stdin);
 
   while (instream && !feof (instream))
     {
@@ -538,7 +549,7 @@ command_loop (void)
        (*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);
 
@@ -748,6 +759,21 @@ static char *gdb_readline_wrapper_result;
    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.  */
 
@@ -786,7 +812,8 @@ struct gdb_readline_wrapper_cleanup
 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;
 
@@ -802,6 +829,8 @@ gdb_readline_wrapper_cleanup (void *arg)
 
   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;
@@ -819,7 +848,7 @@ gdb_readline_wrapper (const char *prompt)
   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;
 
@@ -827,6 +856,7 @@ gdb_readline_wrapper (const char *prompt)
 
   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)
@@ -1035,8 +1065,9 @@ command_line_input (const char *prompt_arg, int repeat, char *annotation_suffix)
     {
       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
@@ -1205,7 +1236,8 @@ command_line_input (const char *prompt_arg, int repeat, char *annotation_suffix)
     {
       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);
@@ -1228,7 +1260,7 @@ print_gdb_version (struct ui_file *stream)
   /* 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
@@ -1407,7 +1439,7 @@ struct qt_args
 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)
@@ -1438,7 +1470,7 @@ kill_or_detach (struct inferior *inf, void *args)
 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;
@@ -1486,6 +1518,21 @@ quit_confirm (void)
   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
@@ -1494,6 +1541,8 @@ quit_force (char *args, int from_tty)
   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)