Remove --xdb

Pedro Alves:

The commands that enables aren't even documented in the manual.
Judging from that, I assume that only wdb users would ever really
be using the --xdb switch.

I think it's time to drop "support" for the --xdb switch too.  I
looked through the commands that that exposes, the only that looked
potentially interesting was "go", but then it's just an alias
for "tbreak+jump", which can easily be done with "define go...end".
I'd rather free up the "go" name for something potentially
more interesting (either run control, or maybe even unrelated,
e.g., for golang).

gdb/ChangeLog
2015-04-11  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* NEWS (Changes since GDB 7.9): Add removed -xdb.
	* breakpoint.c (command_line_is_silent): Remove xdb_commands
	conditional.
	(_initialize_breakpoint): Remove xdb_commands for bc, ab, sb, db, ba
	and lb.
	* cli/cli-cmds.c (_initialize_cli_cmds): Remove xdb_commands for v and
	va.
	* cli/cli-decode.c (find_command_name_length): Remove xdb_commands
	conditional.
	* defs.h (xdb_commands): Remove declaration.
	* f-valprint.c (_initialize_f_valprint): Remove xdb_commands for lc.
	* guile/scm-cmd.c (command_classes): Remove xdb from comment.
	* infcmd.c (run_no_args_command, go_command): Remove.
	(_initialize_infcmd): Remove xdb_commands for S, go, g, R and lr.
	* infrun.c (xdb_handle_command): Remove.
	(_initialize_infrun): Remove xdb_commands for lz and z.
	* main.c (xdb_commands): Remove variable.
	(captured_main): Remove "xdb" from long_options.
	(print_gdb_help): Remove --xdb from help.
	* python/py-cmd.c (gdbpy_initialize_commands): Remove xdb from comment.
	* source.c (_initialize_source): Remove xdb_commands for D, ld, / and ?.
	* stack.c (backtrace_full_command, args_plus_locals_info)
	(current_frame_command): Remove.
	(_initialize_stack): Remove xdb_commands for t, T and l.
	* symtab.c (_initialize_symtab): Remove xdb_commands for lf and lg.
	* thread.c (_initialize_thread): Remove xdb_commands condition.
	* tui/tui-layout.c (tui_toggle_layout_command)
	(tui_toggle_split_layout_command, tui_handle_xdb_layout): Remove.
	(_initialize_tui_layout): Remove xdb_commands for td and ts.
	* tui/tui-regs.c (tui_scroll_regs_forward_command)
	(tui_scroll_regs_backward_command): Remove.
	(_initialize_tui_regs): Remove xdb_commands for fr, gr, sr, +r and -r.
	* tui/tui-win.c (tui_xdb_set_win_height_command): Remove.
	(_initialize_tui_win): Remove xdb_commands for U and w.
	* utils.c (pagination_on_command, pagination_off_command): Remove.
	(initialize_utils): Remove xdb_commands for am and sm.

gdb/doc/ChangeLog
2015-04-11  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.texinfo (Mode Options): Remove -xdb.

1 files changed, 0 insertions, 91 deletions

diff --git a/gdb/infrun.c b/gdb/infrun.c
index c406183..4164a00 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -88,8 +88,6 @@ static void set_schedlock_func (char *args, int from_tty,
 
 static int currently_stepping (struct thread_info *tp);
 
-static void xdb_handle_command (char *args, int from_tty);
-
 void _initialize_infrun (void);
 
 void nullify_last_target_wait_ptid (void);
@@ -7101,72 +7099,6 @@ handle_completer (struct cmd_list_element *ignore,
   return return_val;
 }
 
-static void
-xdb_handle_command (char *args, int from_tty)
-{
-  char **argv;
-  struct cleanup *old_chain;
-
-  if (args == NULL)
-    error_no_arg (_("xdb command"));
-
-  /* Break the command line up into args.  */
-
-  argv = gdb_buildargv (args);
-  old_chain = make_cleanup_freeargv (argv);
-  if (argv[1] != (char *) NULL)
-    {
-      char *argBuf;
-      int bufLen;
-
-      bufLen = strlen (argv[0]) + 20;
-      argBuf = (char *) xmalloc (bufLen);
-      if (argBuf)
-	{
-	  int validFlag = 1;
-	  enum gdb_signal oursig;
-
-	  oursig = gdb_signal_from_name (argv[0]);
-	  memset (argBuf, 0, bufLen);
-	  if (strcmp (argv[1], "Q") == 0)
-	    sprintf (argBuf, "%s %s", argv[0], "noprint");
-	  else
-	    {
-	      if (strcmp (argv[1], "s") == 0)
-		{
-		  if (!signal_stop[oursig])
-		    sprintf (argBuf, "%s %s", argv[0], "stop");
-		  else
-		    sprintf (argBuf, "%s %s", argv[0], "nostop");
-		}
-	      else if (strcmp (argv[1], "i") == 0)
-		{
-		  if (!signal_program[oursig])
-		    sprintf (argBuf, "%s %s", argv[0], "pass");
-		  else
-		    sprintf (argBuf, "%s %s", argv[0], "nopass");
-		}
-	      else if (strcmp (argv[1], "r") == 0)
-		{
-		  if (!signal_print[oursig])
-		    sprintf (argBuf, "%s %s", argv[0], "print");
-		  else
-		    sprintf (argBuf, "%s %s", argv[0], "noprint");
-		}
-	      else
-		validFlag = 0;
-	    }
-	  if (validFlag)
-	    handle_command (argBuf, from_tty);
-	  else
-	    printf_filtered (_("Invalid signal handling flag.\n"));
-	  if (argBuf)
-	    xfree (argBuf);
-	}
-    }
-  do_cleanups (old_chain);
-}
-
 enum gdb_signal
 gdb_signal_from_command (int num)
 {
@@ -7749,29 +7681,6 @@ may be interspersed with actions, with the actions being performed for\n\
 all signals cumulatively specified."));
   set_cmd_completer (c, handle_completer);
 
-  if (xdb_commands)
-    {
-      add_com ("lz", class_info, signals_info, _("\
-What debugger does when program gets various signals.\n\
-Specify a signal as argument to print info on that signal only."));
-      add_com ("z", class_run, xdb_handle_command, _("\
-Specify how to handle a signal.\n\
-Args are signals and actions to apply to those signals.\n\
-Symbolic signals (e.g. SIGSEGV) are recommended but numeric signals\n\
-from 1-15 are allowed for compatibility with old versions of GDB.\n\
-Numeric ranges may be specified with the form LOW-HIGH (e.g. 1-5).\n\
-The special arg \"all\" is recognized to mean all signals except those\n\
-used by the debugger, typically SIGTRAP and SIGINT.\n\
-Recognized actions include \"s\" (toggles between stop and nostop),\n\
-\"r\" (toggles between print and noprint), \"i\" (toggles between pass and \
-nopass), \"Q\" (noprint)\n\
-Stop means reenter debugger if this signal happens (implies print).\n\
-Print means print a message if this signal happens.\n\
-Pass means let program see this signal; otherwise program doesn't know.\n\
-Ignore is a synonym for nopass and noignore is a synonym for pass.\n\
-Pass and Stop may be combined."));
-    }
-
   if (!dbx_commands)
     stop_command = add_cmd ("stop", class_obscure,
 			    not_just_help_class_command, _("\