mirror of
https://github.com/golang/go
synced 2024-11-18 12:54:44 -07:00
0e9f43fcb6
Moves runtime/trace support (including its command line flag) behind a "gc" build tag to allow goimports to build under gccgo, which does not support runtime/trace. Updates golang/go#15544. Change-Id: I017a44089c0a4f3d3ba98815d57a141e25b3fe56 Reviewed-on: https://go-review.googlesource.com/26998 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
27 lines
483 B
Go
27 lines
483 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build gc
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package main
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import (
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"flag"
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"runtime/trace"
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)
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var traceProfile = flag.String("trace", "", "trace profile output")
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func doTrace() func() {
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if *traceProfile != "" {
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bw, flush := bufferedFileWriter(*traceProfile)
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trace.Start(bw)
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return func() {
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flush()
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trace.Stop()
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}
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}
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return func() {}
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}
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