[gdbserver/linux] fix debug output being output with debug output disabled

[gdbserver/linux] fix debug output being output with debug output disabled

[Pedro Alves]

Applied.

-- 
Pedro Alves

2010-08-28  Pedro Alves  <pedro@codesourcery.com>

	* linux-low.c (linux_stabilize_threads): Wrap debug output in a
	debug_threads check.  Avoid a linear search when not doing debug
	output.

---
 gdb/gdbserver/linux-low.c |   15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

Index: src/gdb/gdbserver/linux-low.c
===================================================================
--- src.orig/gdb/gdbserver/linux-low.c	2010-08-28 14:37:36.000000000 +0100
+++ src/gdb/gdbserver/linux-low.c	2010-08-28 14:59:30.000000000 +0100
@@ -1884,8 +1884,9 @@ linux_stabilize_threads (void)
 					 stuck_in_jump_pad_callback, NULL);
   if (lwp_stuck != NULL)
     {
-      fprintf (stderr, "can't stabilize, LWP %ld is stuck in jump pad\n",
-	       lwpid_of (lwp_stuck));
+      if (debug_threads)
+	fprintf (stderr, "can't stabilize, LWP %ld is stuck in jump pad\n",
+		 lwpid_of (lwp_stuck));
       return;
     }
 
@@ -1931,12 +1932,12 @@ linux_stabilize_threads (void)
 
   current_inferior = save_inferior;
 
-  lwp_stuck
-    = (struct lwp_info *) find_inferior (&all_lwps,
-					 stuck_in_jump_pad_callback, NULL);
-  if (lwp_stuck != NULL)
+  if (debug_threads)
     {
-      if (debug_threads)
+      lwp_stuck
+	= (struct lwp_info *) find_inferior (&all_lwps,
+					 stuck_in_jump_pad_callback, NULL);
+      if (lwp_stuck != NULL)
 	fprintf (stderr, "couldn't stabilize, LWP %ld got stuck in jump pad\n",
 		 lwpid_of (lwp_stuck));
     }