--- ./libgo/go/runtime/traceback_gccgo.go.ORIG	2018-01-24 09:49:01 -0600
+++ ./libgo/go/runtime/traceback_gccgo.go	2018-01-24 09:49:22 -0600
@@ -52,6 +52,7 @@
 
 // callers returns a stack trace of the current goroutine.
 // The gc version of callers takes []uintptr, but we take []location.
+//go:noinline
 func callers(skip int, locbuf []location) int {
 	n := c_callers(int32(skip)+1, &locbuf[0], int32(len(locbuf)), false)
 	return int(n)