From 5d8c53abb3269c2a1ce387196f232a7973060340 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sun, 5 Oct 2014 10:33:27 +0800
Subject: [PATCH] soc/runtime/exceptions: do not crash when exception is raised
 with no handler

---
 soc/runtime/exceptions.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/soc/runtime/exceptions.c b/soc/runtime/exceptions.c
index d6c2e9d10..edf54c95a 100644
--- a/soc/runtime/exceptions.c
+++ b/soc/runtime/exceptions.c
@@ -30,6 +30,9 @@ int exception_getid(void)
 
 void exception_raise(int id)
 {
-    stored_id = id;
-    exception_longjmp(exception_contexts[--ec_top].jb);
+    if(ec_top > 0) {
+        stored_id = id;
+        exception_longjmp(exception_contexts[--ec_top].jb);
+    } else
+        corecom_log("WARNING: uncaught exception, ID=%d\n", id);
 }