1 // Copyright 2016 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
14 var traceProfile = flag.String("trace", "", "trace profile output")
16 func doTrace() func() {
17 if *traceProfile != "" {
18 bw, flush := bufferedFileWriter(*traceProfile)