From e0a0c2f4c6b7db9634f7cdd8b8516bac156d12d7 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Fri, 23 Jan 2015 19:49:53 +0000
Subject: [PATCH] re PR go/64595 (go programs abort when debug info is
 stripped)

	PR go/64595
runtime: Don't crash in runtime_callers if no debug info available.

From-SVN: r220057
---
 libgo/runtime/go-callers.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libgo/runtime/go-callers.c b/libgo/runtime/go-callers.c
index 047034539a9..34a21188e3a 100644
--- a/libgo/runtime/go-callers.c
+++ b/libgo/runtime/go-callers.c
@@ -129,6 +129,11 @@ static void
 error_callback (void *data __attribute__ ((unused)),
 		const char *msg, int errnum)
 {
+  if (errnum == -1)
+    {
+      /* No debug info available.  Carry on as best we can.  */
+      return;
+    }
   if (errnum != 0)
     runtime_printf ("%s errno %d\n", msg, errnum);
   runtime_throw (msg);
-- 
2.30.2