2015-02-05  Luis Machado  <lgustavo@codesourcery.com>

	* arm-tdep.c (arm_prologue_this_id): Remove check for the stack
	pointer being 0.

diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 8e9552a..771cbeb 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -2042,10 +2042,6 @@ arm_prologue_this_id (struct frame_info *this_frame,
   if (pc <= gdbarch_tdep (get_frame_arch (this_frame))->lowest_pc)
     return;
 
-  /* If we've hit a wall, stop.  */
-  if (cache->prev_sp == 0)
-    return;
-
   /* Use function start address as part of the frame ID.  If we cannot
      identify the start address (due to missing symbol information),
      fall back to just using the current PC.  */