• Ian Lance Taylor's avatar
    runtime: adjust gsignal stack to current signal stack · f7e51c13
    Ian Lance Taylor authored
    If non-Go code calls sigaltstack before a signal is received, use
    sigaltstack to determine the current signal stack and set the gsignal
    stack to use it.  This makes the Go runtime more robust in the face of
    non-Go code.  We still can't handle a disabled signal stack or a signal
    triggered with SA_ONSTACK clear, but we now give clear errors for those
    cases.
    
    Fixes #7227.
    Update #9896.
    
    Change-Id: Icb1607e01fd6461019b6d77d940e59b3aed4d258
    Reviewed-on: https://go-review.googlesource.com/18102
    Run-TryBot: Ian Lance Taylor <iant@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    Reviewed-by: 's avatarMikio Hara <mikioh.mikioh@gmail.com>
    f7e51c13
signal_openbsd.go 3.09 KB