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1 // Copyright 2014 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 // +build gccgo
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6
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7 package issue9400
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8
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9 import (
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10 "runtime"
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11 "sync/atomic"
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12 )
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13
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14 // The test for the gc compiler resets the stack pointer so that the
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15 // stack gets modified. We don't have a way to do that for gccgo
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16 // without writing more assembly code, which we haven't bothered to
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17 // do. So this is not much of a test.
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18
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19 func RewindAndSetgid() {
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20 atomic.StoreInt32(&Baton, 1)
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21 for atomic.LoadInt32(&Baton) != 0 {
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22 runtime.Gosched()
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23 }
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24 }
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