sparc: Support show_unhandled_signals.

Just faults right now, will add other traps later.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 8a68b24..33e7a38 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1441,7 +1441,7 @@
 };
 
 static struct ctl_table debug_table[] = {
-#if defined(CONFIG_X86) || defined(CONFIG_PPC)
+#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
 	{
 		.procname	= "exception-trace",
 		.data		= &show_unhandled_signals,