* config/i386/nm-cygwin.h (ATTACH_NO_WAIT): Delete.

	* config/i386/nm-i386gnu.h (ATTACH_NO_WAIT): Delete.

	* target.h (struct target_ops): Add to_attach_no_wait member.
	(target_attach_no_wait): New.
	* target.c (update_current_target): Inherit to_attach_no_wait.

	* infcmd.c: Replace ATTACH_NO_WAIT compile time check by
	target_attach_no_wait runtime check.

	* gnu-nat.c (init_gnu_ops): Set to_attach_no_wait in gnu_ops.
	* win32-nat.c (init_win32_ops): Set to_attach_no_wait in
	win32_ops.

1 files changed, 31 insertions, 29 deletions

diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index d9c9cb7..fead6d1 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -2015,38 +2015,40 @@ attach_command (char *args, int from_tty)
   init_wait_for_inferior ();
   clear_proceed_status ();
 
-  /* No traps are generated when attaching to inferior under Mach 3
-     or GNU hurd.  */
-#ifndef ATTACH_NO_WAIT
-  /* Careful here. See comments in inferior.h.  Basically some OSes
-     don't ignore SIGSTOPs on continue requests anymore.  We need a
-     way for handle_inferior_event to reset the stop_signal variable
-     after an attach, and this is what STOP_QUIETLY_NO_SIGSTOP is for.  */
-  stop_soon = STOP_QUIETLY_NO_SIGSTOP;
-
-  if (target_can_async_p ())
+  /* Some system don't generate traps when attaching to inferior.
+     E.g. Mach 3 or GNU hurd.  */
+  if (!target_attach_no_wait)
     {
-      /* sync_execution mode.  Wait for stop.  */
-      struct continuation_arg *arg1, *arg2, *arg3;
+      /* Careful here. See comments in inferior.h.  Basically some
+	 OSes don't ignore SIGSTOPs on continue requests anymore.  We
+	 need a way for handle_inferior_event to reset the stop_signal
+	 variable after an attach, and this is what
+	 STOP_QUIETLY_NO_SIGSTOP is for.  */
+      stop_soon = STOP_QUIETLY_NO_SIGSTOP;
 
-      arg1 =
-	(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
-      arg2 =
-	(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
-      arg3 =
-	(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
-      arg1->next = arg2;
-      arg2->next = arg3;
-      arg3->next = NULL;
-      arg1->data.pointer = args;
-      arg2->data.integer = from_tty;
-      arg3->data.integer = async_exec;
-      add_continuation (attach_command_continuation, arg1);
-      return;
-    }
+      if (target_can_async_p ())
+	{
+	  /* sync_execution mode.  Wait for stop.  */
+	  struct continuation_arg *arg1, *arg2, *arg3;
+
+	  arg1 =
+	    (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
+	  arg2 =
+	    (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
+	  arg3 =
+	    (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
+	  arg1->next = arg2;
+	  arg2->next = arg3;
+	  arg3->next = NULL;
+	  arg1->data.pointer = args;
+	  arg2->data.integer = from_tty;
+	  arg3->data.integer = async_exec;
+	  add_continuation (attach_command_continuation, arg1);
+	  return;
+	}
 
-  wait_for_inferior (0);
-#endif
+      wait_for_inferior (0);
+    }
 
   attach_command_post_wait (args, from_tty, async_exec);
 }