diff options
| -rw-r--r-- | pkg/sync/spin_legacy_unsafe.go | 25 | ||||
| -rw-r--r-- | pkg/sync/spin_unsafe.go | 2 |
2 files changed, 26 insertions, 1 deletions
diff --git a/pkg/sync/spin_legacy_unsafe.go b/pkg/sync/spin_legacy_unsafe.go new file mode 100644 index 000000000..61fc7320e --- /dev/null +++ b/pkg/sync/spin_legacy_unsafe.go @@ -0,0 +1,25 @@ +// Copyright 2020 The gVisor Authors. +// +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build go1.13 +// +build !go1.14 + +package sync + +import ( + "runtime" + _ "unsafe" // for go:linkname +) + +//go:linkname canSpin sync.runtime_canSpin +func canSpin(i int) bool + +//go:linkname doSpin sync.runtime_doSpin +func doSpin() + +func goyield() { + // goyield is not available until Go 1.14. + runtime.Gosched() +} diff --git a/pkg/sync/spin_unsafe.go b/pkg/sync/spin_unsafe.go index cafb2d065..18e8fc743 100644 --- a/pkg/sync/spin_unsafe.go +++ b/pkg/sync/spin_unsafe.go @@ -3,7 +3,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build go1.13 +// +build go1.14 // +build !go1.17 // Check go:linkname function signatures when updating Go version. |