From: Vineet Gupta <vgupta@synopsys.com>
Date: Tue, 25 Jun 2013 09:01:47 +0000 (+0530)
Subject: ARC: warn on improper stack unwind FDE entries
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=baadb8fd0c62540f2ffb2d0f12b8a47c7975562b;p=openwrt%2Fstaging%2Fblogic.git

ARC: warn on improper stack unwind FDE entries

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---

diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index a8d02223da44..e550b117ec4f 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -289,6 +289,8 @@ static void __init setup_unwind_table(struct unwind_table *table,
 			 * instead of the initial loc addr
 			 * return;
 			 */
+			WARN(1, "unwinder: FDE->initial_location NULL %p\n",
+				(const u8 *)(fde + 1) + *fde);
 		}
 		++n;
 	}