From 53af850bdc8e2db73ea64d02255e4ae4d1b97343 Mon Sep 17 00:00:00 2001
From: aarzilli <alessandro.arzilli@gmail.com>
Date: Wed, 23 Mar 2016 13:36:51 +0100
Subject: [PATCH] proc: Never return a stack trace of zero frames

proc.(*Thread).Scope fails if we can find a FDE but PCToLine returns
nothing
---
 proc/stack.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/proc/stack.go b/proc/stack.go
index aa4e6585..bd3e633f 100644
--- a/proc/stack.go
+++ b/proc/stack.go
@@ -127,6 +127,9 @@ func (it *stackIterator) Next() bool {
 	}
 
 	if it.frame.Current.Fn == nil {
+		if it.top {
+			it.err = fmt.Errorf("PC not associated to any function")
+		}
 		return false
 	}