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https://github.com/golang/go
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df2999ef43
CL 214679 added a -race test which shouldn't be run when cgo is not enabled. Fixes the nocgo builder. Change-Id: Iceddf802c4ef6c0de2c3a968e86342303d2d27d8 Reviewed-on: https://go-review.googlesource.com/c/go/+/215477 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
28 lines
532 B
Go
28 lines
532 B
Go
// +build cgo,linux,amd64
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// run -race
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// Copyright 2020 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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package main
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import (
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"fmt"
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"testing"
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"unsafe"
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)
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var buf [2]byte
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var x unsafe.Pointer = unsafe.Pointer(&buf[0])
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func main() {
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n := testing.AllocsPerRun(1000, func() {
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x = unsafe.Pointer(uintptr(x) + 1)
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x = unsafe.Pointer(uintptr(x) - 1)
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})
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if n > 0 {
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panic(fmt.Sprintf("too many allocations; want 0 got %f", n))
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}
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}
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