| // Copyright 2014 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. | |
| //go:build gccgo | |
| package issue9400 | |
| import ( | |
| "runtime" | |
| "sync/atomic" | |
| ) | |
| // The test for the gc compiler resets the stack pointer so that the | |
| // stack gets modified. We don't have a way to do that for gccgo | |
| // without writing more assembly code, which we haven't bothered to | |
| // do. So this is not much of a test. | |
| var Baton int32 | |
| func RewindAndSetgid() { | |
| atomic.StoreInt32(&Baton, 1) | |
| for atomic.LoadInt32(&Baton) != 0 { | |
| runtime.Gosched() | |
| } | |
| } | |