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cmd/compile/internal/gc: add runtime/trace support

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This change adds runtime/trace support to go tool compile.

Change-Id: I6c496b9b063796123f75eba6af511c53a57c0196
Reviewed-on: https://go-review.googlesource.com/25354
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This commit is contained in:
Dave Cheney 2016-08-01 20:34:12 +10:00 • committed by Russ Cox
parent 1a3b739b26
commit 6e759ad2e2
3 changed files with 33 additions and 0 deletions
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27
src/cmd/compile/internal/gc/trace.go Normal file
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@ -0,0 +1,27 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
package gc
import (
"os"
tracepkg "runtime/trace"
)
func init() {
traceHandler = traceHandlerGo17
}
func traceHandlerGo17(traceprofile string) {
f, err := os.Create(traceprofile)
if err != nil {
Fatalf("%v", err)
}
if err := tracepkg.Start(f); err != nil {
Fatalf("%v", err)
}
atExit(tracepkg.Stop)
}