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Etienne PerotandgVisor bot
ffeb98263d
Make `checkescape` check for variants of `+checkescape` that would silently be ignored. #codehealth PiperOrigin-RevId: 436882400
32 lines
696 B
Go
32 lines
696 B
Go
// Copyright 2020 The gVisor Authors.
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//
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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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//go:build amd64 && go1.8 && !go1.20 && !goexperiment.staticlockranking
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// +build amd64,go1.8,!go1.20,!goexperiment.staticlockranking
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package sync
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import (
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"sync/atomic"
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)
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const supportsWakeSuppression = true
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// addrOfSpinning returns the address of runtime.sched.nmspinning.
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func addrOfSpinning() *int32
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// nmspinning caches addrOfSpinning.
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var nmspinning = addrOfSpinning()
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//go:nosplit
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func preGoReadyWakeSuppression() {
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atomic.AddInt32(nmspinning, 1)
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}
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//go:nosplit
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func postGoReadyWakeSuppression() {
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atomic.AddInt32(nmspinning, -1)
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}
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