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os: align siginfo argument to waitid 

Backport https://golang.org/cl/46511 from gc trunk, as it may fix a
    bug reported for gccgo running on MIPS
    (https://groups.google.com/d/msg/golang-dev/sDg-t1_DPw0/-AJmLxgPBQAJ).
    
    Reviewed-on: https://go-review.googlesource.com/46571

From-SVN: r249600
This commit is contained in:
Ian Lance Taylor 2017-06-23 17:12:32 +00:00
parent 4e85f2146a
commit 5105d5588d
1 changed files with 1 additions and 1 deletions
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2
libgo/go/os/wait_waitid.go
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@ -23,7 +23,7 @@ func (p *Process) blockUntilWaitable() (bool, error) {
// On Darwin, it requires greater than or equal to 64 bytes
// for darwin/{386,arm} and 104 bytes for darwin/amd64.
// We don't care about the values it returns.
var siginfo [128]byte
var siginfo [16]uint64
psig := &siginfo[0]
_, _, e := syscall.Syscall6(syscall.SYS_WAITID, _P_PID, uintptr(p.Pid), uintptr(unsafe.Pointer(psig)), syscall.WEXITED|syscall.WNOWAIT, 0, 0)
runtime.KeepAlive(p)