[RFA] * linux-low.c (linux_wait_for_process): Don't clobber current_inferior

[Doug Evans]

Hi.

linux-low.c:linux_wait_for_process has this:

  if (debug_threads
      && WIFSTOPPED (*wstatp))
    {
      current_inferior = (struct thread_info *)
	find_inferior_id (&all_threads, (*childp)->lwpid);
      /* For testing only; i386_stop_pc prints out a diagnostic.  */
      if (the_low_target.get_pc != NULL)
	get_stop_pc ();
    }

Clobbering current_inferior in a debugging printf is asking for trouble.
[If current_inferior is supposed to be changed here, let's move it
outside the test for debug_threads.]

Ok to check in?

2008-12-12  Doug Evans  <dje@google.com>

	* linux-low.c (linux_wait_for_process): Don't clobber current_inferior
	in debugging printf.

Index: linux-low.c
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/linux-low.c,v
retrieving revision 1.82
diff -u -p -r1.82 linux-low.c
--- linux-low.c	2 Dec 2008 07:57:37 -0000	1.82
+++ linux-low.c	12 Dec 2008 20:03:34 -0000
@@ -643,11 +642,13 @@ retry:
   if (debug_threads
       && WIFSTOPPED (*wstatp))
     {
+      struct thread_info *saved_inferior = current_inferior;
       current_inferior = (struct thread_info *)
 	find_inferior_id (&all_threads, (*childp)->lwpid);
       /* For testing only; i386_stop_pc prints out a diagnostic.  */
       if (the_low_target.get_pc != NULL)
 	get_stop_pc ();
+      current_inferior = saved_inferior;
     }
 }