From a1a0f4b3d8431065660c9c7d5592a7bc9abdfa2e Mon Sep 17 00:00:00 2001
From: ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 23 Jan 2015 19:49:53 +0000
Subject: 	PR go/64595 runtime: Don't crash in runtime_callers if no
 debug info available.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@220057 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libgo/runtime/go-callers.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libgo')

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);
-- 
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