* target.c (target_async_permitted, target_async_permitted_1)

[thirdparty/binutils-gdb.git] / gdb / target.c

diff --git a/gdb/target.c b/gdb/target.c
index 575415b582e075fa26fa41a04784581f9ea0e80e..e4699053f4fe2fb25fb6308ed072fa1e6f39309e 100644 (file)
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -3133,6 +3133,35 @@ maintenance_print_target_stack (char *cmd, int from_tty)
     }
 }
 
+/* Controls if async mode is permitted.  */
+int target_async_permitted = 0;
+
+/* The set command writes to this variable.  If the inferior is
+   executing, linux_nat_async_permitted is *not* updated.  */
+static int target_async_permitted_1 = 0;
+
+static void
+set_maintenance_target_async_permitted (char *args, int from_tty,
+                                       struct cmd_list_element *c)
+{
+  if (target_has_execution)
+    {
+      target_async_permitted_1 = target_async_permitted;
+      error (_("Cannot change this setting while the inferior is running."));
+    }
+
+  target_async_permitted = target_async_permitted_1;
+}
+
+static void
+show_maintenance_target_async_permitted (struct ui_file *file, int from_tty,
+                                        struct cmd_list_element *c,
+                                        const char *value)
+{
+  fprintf_filtered (file, _("\
+Controlling the inferior in asynchronous mode is %s.\n"), value);
+}
+
 void
 initialize_targets (void)
 {
@@ -3170,5 +3199,15 @@ result in significant performance improvement for remote targets."),
            _("Print the name of each layer of the internal target stack."),
            &maintenanceprintlist);
 
+  add_setshow_boolean_cmd ("target-async", no_class,
+                          &target_async_permitted_1, _("\
+Set whether gdb controls the inferior in asynchronous mode."), _("\
+Show whether gdb controls the inferior in asynchronous mode."), _("\
+Tells gdb whether to control the inferior in asynchronous mode."),
+                          set_maintenance_target_async_permitted,
+                          show_maintenance_target_async_permitted,
+                          &setlist,
+                          &showlist);
+
   target_dcache = dcache_init ();
 }