* infrun.c (normal_stop): Use has_stack_frames instead of

	target_has_stack.
	* mi/mi-main.c (mi_execute_command): Avoid calling inferior_thread
	when there is no thread selected.
	(mi_cmd_execute): Don't special case commands that can run without
	a valid selected thread.
	* top.c (execute_command): Don't special case commands that can
	run without a valid selected thread.  Use has_stack_frames.
	* infcmd.c (ensure_valid_thread): New.
	(continue_1, step_1, jump_command, signal_command): Use it.
	(detach_command): Error out if there's no selected thread/inferior.
	* thread.c (print_thread_info): Allow having no thread selected.
	(switch_to_thread): Don't read the PC if there is no current thread.
	(do_restore_current_thread_cleanup): Don't record the current
	frame if there is no current thread.
	(make_cleanup_restore_current_thread): Don't read frame info if
	there is no selected thread.
	(_initialize_thread): Don't mark commands as
	"no_selected_thread_ok".
	* frame.c (get_current_frame): Error out if there is no valid
	selected thread.
	(has_stack_frames): Return false if there is no valid
	selected thread.
	* cli/cli-cmds.c (init_cli_cmds): Don't mark commands as
	"no_selected_thread_ok".
	* cli/cli-decode.c (set_cmd_no_selected_thread_ok)
	(get_cmd_no_selected_thread_ok): Delete.
	* cli/cli-decode.h (CMD_NO_SELECTED_THREAD_OK): Delete.
	(set_cmd_no_selected_thread_ok, get_cmd_no_selected_thread_ok):
	Delete declaration.
	* stack.c (get_selected_block): Use has_stack_frames.

3 files changed, 5 insertions, 32 deletions

diff --git a/gdb/cli/cli-cmds.c b/gdb/cli/cli-cmds.c
index 1b40b4b..18d34bf 100644
--- a/gdb/cli/cli-cmds.c
+++ b/gdb/cli/cli-cmds.c
@@ -1248,9 +1248,8 @@ The commands below can be used to select other frames by number or address."),
 
   /* Define general commands. */
 
-  c = add_com ("pwd", class_files, pwd_command, _("\
+  add_com ("pwd", class_files, pwd_command, _("\
 Print working directory.  This is used for your program as well."));
-  set_cmd_no_selected_thread_ok (c);
 
   c = add_cmd ("cd", class_files, cd_command, _("\
 Set working directory to DIR for debugger and program being debugged.\n\
@@ -1291,7 +1290,6 @@ when GDB is started."), gdbinit);
   c = add_com ("help", class_support, help_command,
 	       _("Print list of commands."));
   set_cmd_completer (c, command_completer);
-  set_cmd_no_selected_thread_ok (c);
   add_com_alias ("q", "quit", class_support, 1);
   add_com_alias ("h", "help", class_support, 1);
 
@@ -1317,19 +1315,17 @@ Without an argument, history expansion is enabled."),
 			   show_history_expansion_p,
 			   &sethistlist, &showhistlist);
 
-  c = add_prefix_cmd ("info", class_info, info_command, _("\
+  add_prefix_cmd ("info", class_info, info_command, _("\
 Generic command for showing things about the program being debugged."),
-		      &infolist, "info ", 0, &cmdlist);
-  set_cmd_no_selected_thread_ok (c);
+		  &infolist, "info ", 0, &cmdlist);
   add_com_alias ("i", "info", class_info, 1);
 
   add_com ("complete", class_obscure, complete_command,
 	   _("List the completions for the rest of the line as a command."));
 
-  c = add_prefix_cmd ("show", class_info, show_command, _("\
+  add_prefix_cmd ("show", class_info, show_command, _("\
 Generic command for showing things about the debugger."),
-		      &showlist, "show ", 0, &cmdlist);
-  set_cmd_no_selected_thread_ok (c);
+		  &showlist, "show ", 0, &cmdlist);
   /* Another way to get at the same thing.  */
   add_info ("set", show_command, _("Show all GDB settings."));
 
diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c
index 8760ebf..4ebf6dc 100644
--- a/gdb/cli/cli-decode.c
+++ b/gdb/cli/cli-decode.c
@@ -112,18 +112,6 @@ get_cmd_context (struct cmd_list_element *cmd)
   return cmd->context;
 }
 
-void
-set_cmd_no_selected_thread_ok (struct cmd_list_element *cmd)
-{
-  cmd->flags |= CMD_NO_SELECTED_THREAD_OK;
-}
-
-int
-get_cmd_no_selected_thread_ok (struct cmd_list_element *cmd)
-{
-  return cmd->flags & CMD_NO_SELECTED_THREAD_OK;
-}
-
 enum cmd_types
 cmd_type (struct cmd_list_element *cmd)
 {
diff --git a/gdb/cli/cli-decode.h b/gdb/cli/cli-decode.h
index 26ca2f7..b6475e0 100644
--- a/gdb/cli/cli-decode.h
+++ b/gdb/cli/cli-decode.h
@@ -48,10 +48,6 @@ cmd_types;
 #define DEPRECATED_WARN_USER      0x2
 #define MALLOCED_REPLACEMENT      0x4
 
-/* This flag is set if the command is allowed to run when the target
-   has execution, but there's no selected thread.  */
-#define CMD_NO_SELECTED_THREAD_OK 0x10
-
 struct cmd_list_element
   {
     /* Points to next command in this list.  */
@@ -259,13 +255,6 @@ extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
 extern void set_cmd_context (struct cmd_list_element *cmd, void *context);
 extern void *get_cmd_context (struct cmd_list_element *cmd);
 
-/* Mark command as ok to call when there is no selected thread.  There
-   is no way to disable this once set.  */
-extern void set_cmd_no_selected_thread_ok (struct cmd_list_element *);
-
-/* Return true if command is no-selected-thread-ok.  */
-extern int get_cmd_no_selected_thread_ok (struct cmd_list_element *);
-
 extern struct cmd_list_element *lookup_cmd (char **,
 					    struct cmd_list_element *, char *,
 					    int, int);