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

Browse Source 
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.
This commit is contained in:
Pedro Alves
2009-03-25 21:42:35 +00:00
parent f04c6d38e2
commit d729566a19
12 changed files with 137 additions and 134 deletions
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15
gdb/frame.c
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@ -980,6 +980,10 @@ get_current_frame (void)
error (_("No stack."));
if (!target_has_memory)
error (_("No memory."));
if (ptid_equal (inferior_ptid, null_ptid))
error (_("No selected thread."));
if (is_exited (inferior_ptid))
error (_("Invalid selected thread."));
if (is_executing (inferior_ptid))
error (_("Target is executing."));
@ -1009,8 +1013,15 @@ has_stack_frames (void)
if (!target_has_registers || !target_has_stack || !target_has_memory)
return 0;
/* If the current thread is executing, don't try to read from
it. */
/* No current inferior, no frame. */
if (ptid_equal (inferior_ptid, null_ptid))
return 0;
/* Don't try to read from a dead thread. */
if (is_exited (inferior_ptid))
return 0;
/* ... or from a spinning thread. */
if (is_executing (inferior_ptid))
return 0;