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runtime: unify Unix implementations of unminit

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Change-Id: I2cbb13eb85876ad05a52cbd498a9b86e7a28899c
Reviewed-on: https://go-review.googlesource.com/29772
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Ian Lance Taylor 2016-09-26 11:35:55 -07:00
parent 6bcd258095
commit e2e11f02a4
8 changed files with 16 additions and 21 deletions
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9
src/runtime/signal_unix.go
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@ -619,6 +619,15 @@ func minitSignalMask() {
sigprocmask(_SIG_SETMASK, &nmask, nil)
}
// unminitSignals is called from dropm, via unminit, to undo the
// effect of calling minit on a non-Go thread.
//go:nosplit
func unminitSignals() {
if getg().m.newSigstack {
signalstack(nil)
}
}
// setGsignalStack sets the gsignal stack of the current m to an
// alternate signal stack returned from the sigaltstack system call.
// This is used when handling a signal if non-Go code has set the