2008-10-21  Michael Snyder  <msnyder@vmware.com>

	* remote.c (write_ptid): Emit leading zeros to preserve 
	remote protocol behavior of remote_thread_alive.

Index: remote.c
===================================================================
RCS file: /cvs/src/src/gdb/remote.c,v
retrieving revision 1.321
diff -u -p -r1.321 remote.c
--- remote.c	17 Oct 2008 19:43:47 -0000	1.321
+++ remote.c	22 Oct 2008 01:00:16 -0000
@@ -1433,15 +1433,15 @@ write_ptid (char *buf, const char *endbu
     {
       pid = ptid_get_pid (ptid);
       if (pid < 0)
-	buf += xsnprintf (buf, endbuf - buf, "p-%x.", -pid);
+	buf += xsnprintf (buf, endbuf - buf, "p-%08x.", -pid);
       else
-	buf += xsnprintf (buf, endbuf - buf, "p%x.", pid);
+	buf += xsnprintf (buf, endbuf - buf, "p%08x.", pid);
     }
   tid = ptid_get_tid (ptid);
   if (tid < 0)
-    buf += xsnprintf (buf, endbuf - buf, "-%x", -tid);
+    buf += xsnprintf (buf, endbuf - buf, "-%x08", -tid);
   else
-    buf += xsnprintf (buf, endbuf - buf, "%x", tid);
+    buf += xsnprintf (buf, endbuf - buf, "%x08", tid);
 
   return buf;
 }
@@ -2097,6 +2097,10 @@ remote_threads_info (void)
 	    {
 	      do
 		{
+		  /* Skip spaces.  */
+		  while (*bufp == ' ')
+		    bufp++;
+
 		  new_thread = read_ptid (bufp, &bufp);
 		  if (!ptid_equal (new_thread, null_ptid)
 		      && (!in_thread_list (new_thread)